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Utilities
Lightweight utilities that run in your browser—ideal for quick checks, previews, and polish alongside our full AI content suite on the all tools page.
Free A/B test calculator: two variants—visitors & conversions—90/95/99% confidence, conversion rates, relative uplift, z-test p-value, Wald CIs, winner summary, significance meter, bar chart with intervals, post-hoc power—client-side (MKT-021).
Rasterize HTML/CSS in the browser: CodeMirror editor, sandboxed preview, viewport width, PNG/JPEG, 2× export, custom or transparent background—private capture (WEB-002).
Paste, upload, or edit HTML with live preview, device frames, split view, download, and safe sandbox options—free in the browser.
Free marketing budget allocation calculator: total budget ($), eight-channel % mix (must sum to 100%), dollar split, illustrative benchmark ROI projections, blended ROI, pie + bar charts, B2B SaaS, ecommerce, local & enterprise templates—client-side (MKT-027).
Compute markup %, margin %, selling price, and profit from cost—reverse modes, scenario matrix, list discounts, VAT-inclusive shelf prices, quantity line totals, CSV export—free in your browser.
Resize and convert images in the browser: width, height, longest edge, percentage, exact canvas (contain/cover/stretch), rotate, flip, WebP/JPEG/PNG, quality, batch download—free, local processing.
Free image name changer in-browser: one upload, edit filename, slugify, remove spaces, find & replace (regex), YYYY-MM-DD prefix, WxH dimensions suffix, keep or set extension with validation, download — pixels unchanged, no server upload (UTIL-027).
Free photo batch renamer in-browser: pattern tokens {n} {date} {original} {width} {height} {ext} {camera}, prefix/suffix, case, find & replace with regex, sort by name/date/size or drag order, ZIP download — pixels unchanged (UTIL-026).
Free backorder rate calculator: backordered vs total ordered per period, pooled rate & fill rate, optional backorder cost estimate, multi-period trend chart, illustrative industry benchmarks, root-cause checklist, PDF & CSV—client-side (INV-011).
Free barcode maker in-browser: Code 128, Code 39, EAN-13/8, UPC-A/E, ITF-14, Codabar, MSI — validation, bar size and colors, caption text, live preview, PNG/JPG/SVG, batch list with ZIP — JsBarcode, client-side (CODE-002).
Free Pinterest image resizer in-browser: 1000×1500 standard/long/square pins, 1080×1920 story & Idea Pin, 165×165 profile, 222×150 board cover, carousel & shopping 2:3 — fit/fill/stretch, smart focal crop, feed preview, batch ZIP — RESIZE-006.
Reddit image resizer in-browser: post image 1920×1080, subreddit banners 4000×192 / 1920×384 / 1600×480, icon & avatar 256×256 (circle preview), profile banner 1000×300, award 512×512, emoji 128×128, flair 72×72—fit/fill/stretch, focal crop, card & compact feed preview, batch ZIP—local only (RESIZE-014).
Free Snapchat image resizer in-browser: Snap/Story & ads 1080×1920, geofilter 1080×2340 with safe-zone overlay, profile & lens 320×320, Collection tile 160×160 & main 1080×1920—fit/fill/stretch, focal crop, batch ZIP, local only (RESIZE-009).
Free inventory turnover calculator: COGS & average inventory (or beginning/ending)—turnover ratio, days to sell, monthly/quarterly/annual periods, retail/wholesale/manufacturing benchmarks, performance rating, PDF & CSV—client-side (INV-001).
Free reorder point calculator: average daily usage, lead time, manual or service-level safety, variable lead time, illustrative timeline, multi-SKU comparison table, PDF & CSV export—client-side (INV-004).
Free sell-through rate calculator: units sold ÷ units received × 100—weekly/monthly/quarterly labels, multi-SKU comparison, trend chart, retail category benchmarks, blended aggregate, PDF & CSV export—client-side (INV-006).
Free shrinkage rate calculator: recorded vs physical inventory value, shrinkage % & dollar loss, annualized shrinkage, theft/damage/admin/vendor split, retail ~1.4% benchmark context, loss prevention ROI, PDF & CSV—client-side (INV-012).
Shipping cost planning hub: links to CBM, container loading, dimensional weight, freight class, landed cost, and currency tools for import and export education—client-side.
Free investment ROI calculator: initial investment, final value, years, optional dividends—income vs appreciation, total & annualized ROI %, total return ($), growth chart, return pie, reset & copy—client-side (FIN-029).
Convert JPEG to ICO in the browser: batch up to 10 files (10MB each), multi-select 16–256px sizes, one multi-resolution ICO or separate files, center crop or fit with padding, BMP + PNG-in-ICO—Canvas, no upload.
Convert JPEG to PNG in the browser: batch up to 20 files (50MB each), transparent or solid background, 8-bit palette or 24-bit truecolor, optional EXIF eXIf chunk, ZIP download—local Canvas + Web Worker, no upload.
Convert JPEG to SVG in the browser: embed base64 JPEG or trace vectors with ImageTracer (color or B&W threshold), live preview, batch up to 10 files (20MB each), custom dimensions, Web Worker + ZIP—no upload.
Merge JPEGs into one PDF in the browser: up to 30 files (50MB each), drag to reorder, A4/Letter/A3 or custom size, portrait/landscape/auto, margins, fit/fill/original, metadata—jsPDF locally, no upload.
Convert JPEG to Windows Bitmap in the browser: batch up to 20 files (100MB each), 24-bit RGB or 32-bit BGRA BMP, before/after preview, JPEG vs BMP size table, ZIP download—Canvas decode + local DIB encode, no upload (IMG-003).
Convert JPEG to Photoshop PSD in the browser: batch up to 20 files (100MB each), single editable raster layer with composite + thumbnail, preview, JPEG vs PSD size table, ZIP download—Canvas + ag-psd, no upload (IMG-008).
Convert millimetres to pixels (and pixels to millimetres) at any DPI: CSS 96 reference, print presets, batch table, TSV export, A4 presets—free in the browser.
Free NPS calculator: promoter / passive / detractor counts or paste 0–10 scores—NPS −100…+100, % breakdown, gauges, donut chart, SaaS/ecommerce/B2B benchmarks, MOE, copy—client-side (MKT-023).
Free operating margin calculator: revenue, COGS, operating expenses—operating income, margin %, COGS and OpEx ratios, waterfall chart, multi-period margin trend, copy—client-side (FIN-004).
Free client-side product copy for Amazon, Shopify, eBay, Etsy, social ads & websites—AIDA/PAS/FAB/BAB, tones, keyword highlight, favorites, TXT/CSV export (CONTENT-010).
Plan Google Ads, Meta, and LinkedIn spend: channel allocation, CPC bands, CTR/CVR forecasts, CPA, ROAS, fees, learning reserve, scenarios, CSV export—free.
Free PPC budget planner: spend, CPC, CTR, CVR, AOV → impressions, clicks, conversions, revenue, ROAS, P/L; funnel, weekly table, budget slider, scenarios—client-side (MKT-016).
Build accessible iframe snippets with sandbox, Permissions-Policy allow list, referrer policy, lazy-loading, responsive aspect-ratio wrappers, and HTML / JSX / Markdown export—free, client-side only.
Placeholder text: classic Latin-style, corporate, or developer presets; HTML/Markdown export; seeds and word targets—runs locally.
Free retail markdown calculator: original ticket, markdown % or new price, optional 2nd markdown & clearance—markdown $, cumulative %, margin by stage, break-even volume, price waterfall & margin charts, copy—client-side (FIN-037).
Write Markdown with CodeMirror, GitHub Flavored live preview, outline, tables & task lists, local autosave, open/download .md—no upload.
Format, indent, and minify HTML in the browser: presets, advanced wrap and script options, validation hints, copy and download—no upload.
Convert Markdown to HTML in the browser: tables, footnotes, task lists, anchors, GFM strike, syntax highlighting, typographer, optional HTML5 shell—copy, preview, download.
Export Markdown to .docx (Word, Google Docs) and styled HTML: headings, multimd tables, nested lists, task lists, strikethrough, code fences, links, blockquotes, optional title H1—runs locally in your browser.
Visual CSS Grid builder: template tracks, areas, auto-fit minmax, gap, alignment, auto-flow, implicit tracks, item spans, live preview, copy CSS—free in the browser.
Free daily sales revenue calculator: total revenue ÷ days/months/years or daily transactions × AOV—weekly/monthly/annual run rates, seasonal index, revenue per hour & per order, projection line & bar charts, copy—client-side (FIN-027).
Free DCF calculator: 5-year projected cash flows, discount rate, terminal growth—PV by year, Gordon terminal value, enterprise value, optional per-share, waterfall chart, discount vs growth sensitivity grid, copy—client-side (FIN-013).
Build robots.txt with user-agent groups, Allow/Disallow, crawl-delay, sitemaps, Host, AI-bot presets, import/export—free in the browser.
Draft llms.txt with site info, per-bot AI crawler policy, content sections, citation & licensing, syntax-highlighted preview, robots.txt companion snippet, presets—free in the browser (SEO-024).
Convert pixels to inches (and inches to pixels) with DPI presets, batch mode, millimeters and typographic points—free in the browser.
Free QR generator in-browser for photographers: URL, vCard, WiFi, text, email, phone, SMS, event, geo; portfolio/Instagram/booking/price presets; colors, dots/rounded/square modules, EC L–H, quiet zone, center logo; PNG, SVG, JPG to 4096px—client-side qrcode.js (UTIL-031).
Free QR code generator in-browser: URL, text, email, phone, SMS, WiFi, vCard, calendar event; 100–2000px, EC L–H, colors, quiet zone, square/rounded/dots modules, center logo; PNG, SVG, JPG; batch ZIP; camera test scan—client-side qrcode.js (CODE-003).
Convert pixels to centimeters (and back) with adjustable DPI/PPI, millimeters and inches, batch lines, printable tables, and presets for web and print.
Free circle photo cropper in-browser: JPG, PNG, WebP, BMP, TIFF — drag to move and resize circular mask, zoom and pan, transparent or solid background, original or custom output size, real-time preview, PNG/JPEG export, batch center-crop ZIP — 100% client-side Canvas (UTIL-034).
Free 2:3 portrait photo crop in-browser: JPG, PNG, WebP, HEIC — locked vertical 2:3 overlay, drag move & corner resize, zoom/pan, presets 800×1200–3000×4500, live preview, batch centered ZIP, JPG/PNG/WebP export — 100% client-side Canvas (RESIZE-039).
Free 3:2 photo crop in-browser: JPG, PNG, WebP, HEIC — locked 3:2 landscape or 2:3 portrait overlay, drag move & corner resize, zoom/pan, presets 1200×800–4500×3000, live preview, batch centered ZIP, JPG/PNG/WebP export — 100% client-side Canvas (RESIZE-036).
Free 4:3 / 3:4 aspect crop in-browser: locked ratio overlay, corner resize, orientation toggle, presets (640×480–2048×1536) or native pixels, preview, PNG/JPEG/WebP, batch ZIP — JPG, PNG, WebP, BMP, TIFF — client-side Canvas (RESIZE-037).
Free 5:4 photo crop in-browser: JPG, PNG, WebP, HEIC — locked 5:4 landscape or 4:5 portrait overlay, drag move & corner resize, zoom/pan, presets 1280×1024–2500×2000, live preview, batch centered ZIP, JPG/PNG/WebP export — 100% client-side Canvas (RESIZE-038).
Free 4:5 Instagram portrait crop in-browser: JPG, PNG, WebP, HEIC — locked feed ratio (1080×1350 preset), drag move & corner resize, zoom/pan, custom width, live preview, batch centered ZIP, JPG/PNG/WebP export — 100% client-side Canvas (RESIZE-040).
Free 16:9 widescreen crop in-browser: JPG, PNG, WebP, BMP, TIFF — locked 16:9 or 9:16 overlay, drag move & corner resize, zoom/pan, presets 1280×720–3840×2160 plus custom width, live preview, batch centered ZIP, PNG/JPEG/WebP — 100% client-side Canvas (RESIZE-041).
Free 21:9 ultrawide photo crop in-browser: locked overlay (WFHD / UWQHD / 5K presets or custom), drag move & corner resize, zoom/pan, live preview, batch centered ZIP, PNG/JPEG/WebP — JPG, PNG, WebP, BMP, TIFF — client-side Canvas (RESIZE-043).
Free golden ratio (φ ≈ 1.618) photo crop in-browser: JPG, PNG, WebP, BMP, TIFF — locked 1.618:1 or 1:1.618 overlay, rule-of-thirds & spiral guides, drag move & corner resize, zoom/pan, phi presets & custom width, live preview, batch centered ZIP, PNG/JPEG/WebP — 100% client-side Canvas (RESIZE-044).
See your public IPv4 and IPv6, server-visible connection IP, geolocation, ASN/ISP, timezone, browser signals, map link, and copy-ready fields—free.
Word, character, and readability stats in real time.
Seven readability formulas (Flesch, Flesch–Kincaid, Fog, Coleman–Liau, SMOG, ARI, Dale–Chall), stats, reading time, difficulty bands, suggestions, compare & export—client-side (TEXT-009).
Strip EXIF and embedded metadata in the browser: JPG, PNG, WebP, TIFF — batch, GPS-only or personal-only presets, custom categories, before/after size, ZIP — no re-encode for JPEG/PNG/WebP when possible (UTIL-002).
Free round corners tool in-browser: JPG, PNG, WebP, BMP, TIFF — radius 0–50% of shorter side, uniform or per-corner (TL/TR/BR/BL), presets slight/medium/large/pill (5–50% of short side), transparent PNG corners or solid fill, checkerboard live preview, batch + ZIP — client-side Canvas (RESIZE-046).
Free geotag remover: JPG, PNG, WebP, TIFF, HEIC — detect GPS/location in EXIF, OpenStreetMap preview, remove only GPS while preserving camera metadata, batch + ZIP — 100% client-side (UTIL-004).
Free client-side text to PNG/JPG: 25+ Google Fonts, size/color, bold/italic/underline, alignment, padding & line height, solid or gradient background, Instagram/Twitter/Facebook presets & custom canvas—live preview (WEB-006).
Free text watermark tool in-browser: JPG, PNG, WebP, BMP, TIFF — multi-line text, web-safe + Google Fonts, stroke/shadow, rotation, 9-point grid, custom drag anchor, diagonal tiling, batch apply, live preview, ZIP — Canvas only, no upload (UTIL-007).
Free photo timestamp tool in-browser: JPG, PNG, WebP, BMP, TIFF — EXIF capture date or manual date/time, MM/DD/YYYY DD/MM/YYYY YYYY-MM-DD or custom pattern, font/size/color/opacity, 9-point grid, semi-transparent background, vintage LED style, batch stamp + ZIP — Canvas only, no upload (UTIL-013).
YouTube image sizes in-browser: 1280×720 thumbnails (2MB-aware), 2560×1440 banners with 1546×423 safe overlay, 800×800 profile, 150×150 watermark, 300×300 end screen, 1200×675 community—fit/fill/stretch, focal crop, batch ZIP—local only (RESIZE-005).
Telegram image resizer in-browser: 512×512 profile, channel & bot icons, WebP static stickers, 48×48 inline thumbnails, shared photos max 1280px longest side—fit/fill/stretch, focal crop, transparent letterbox, JPG/PNG/WebP, batch ZIP—TGS/WebM references only, local only (RESIZE-013).
eBay image resizer in-browser: 1600×1600 product, 800×800 gallery & description, 300×300 Store logo & category, 1280×290 Store billboard, 500×500 promoted—fit/fill/stretch, focal crop, white padding, preview zoom, JPG/PNG/GIF/TIFF/BMP, 12 MB cap, batch ZIP—local only (RESIZE-020).
A3 paper resizer in-browser: ISO 297×420 mm (11.7×16.5 in), DPI 72/150/300/600 (300 DPI → 3508×4961 px portrait), portrait/landscape, fill/crop with focal point, fit/letterbox, stretch, crop preview, JPG/PNG/WebP, HEIC decode, batch ZIP—local only (RESIZE-023).
A4 photo resizer in-browser: ISO 210×297 mm (8.27×11.69 in), DPI 72/150/300/600 (300 DPI → 2480×3508 px portrait), portrait/landscape, fill/crop with focal point, fit/letterbox, stretch, crop overlay preview, JPG/PNG/WebP, HEIC decode, batch ZIP—local only (RESIZE-024).
A5 photo resizer in-browser: ISO 148×210 mm (5.83×8.27 in), DPI 72/150/300/600 (300 DPI → 1748×2480 px portrait), portrait/landscape, fill/crop with focal point, fit/letterbox, stretch, crop overlay preview, JPG/PNG/WebP, HEIC decode, batch ZIP—local only (RESIZE-025).
4×6 snapshot resizer in-browser: classic 2:3 print (4×6 in), DPI 72/150/300/600 (300 DPI → 1200×1800 px portrait), portrait/landscape, smart fill/crop with focal point, fit/letterbox, stretch, safe-area preview on output, JPG/PNG/WebP, HEIC decode, batch ZIP—local only (RESIZE-029).
US 8×10 inch portrait/wall-print resizer in-browser: 4:5 aspect, DPI 72/150/300/600 (300 DPI → 2400×3000 px portrait), portrait/landscape, smart fill/crop with focal point, fit/letterbox, stretch, safe-area preview on output, JPG/PNG/WebP, HEIC decode, batch ZIP—local only (RESIZE-031).
US 11×14 inch large-format resizer in-browser: 11:14 print aspect, DPI 72/150/300/600 (300 DPI → 3300×4200 px portrait), portrait/landscape, fill/crop with focal point, fit/letterbox, stretch, safe-area preview, JPG/PNG/WebP, HEIC decode, batch ZIP—local only (RESIZE-032).
US 20×24 inch gallery resizer in-browser: 5:6 print aspect, DPI 72/150/300/600 (300 DPI → 6000×7200 px portrait), portrait/landscape, fill/crop with focal point, fit/letterbox, stretch, resolution quality indicator, safe-area preview, JPG/PNG/WebP, HEIC decode, batch ZIP—local only (RESIZE-034).
US Tabloid/Ledger resizer in-browser: 11×17 in (279.4×431.8 mm), DPI 72/150/300/600 (300 DPI → 3300×5100 px portrait, Ledger 5100×3300), portrait/Ledger, fill/crop with focal point, fit/letterbox, stretch, crop preview, JPG/PNG/WebP, HEIC decode, batch ZIP—local only (RESIZE-028).
US 5×7 inch photo resizer in-browser: 5:7 print aspect, DPI 72/150/300/600 (300 DPI → 1500×2100 px portrait), portrait/landscape, fill/crop with focal point, fit/letterbox, stretch, safe-area preview, JPG/PNG/WebP, HEIC decode, batch ZIP—local only (RESIZE-030).
TikTok image sizes in-browser: 1080×1920 cover & photo posts, 200×200 profile, 1200×628 & 720×1280 ads, 800×800 Shop—fit/fill/stretch, focal crop, safe-zone & UI mock preview, match-original or JPG/PNG/WebP, batch ZIP—local only (RESIZE-008).
Free revenue growth calculator: previous vs current revenue ($), month/quarter/year—growth %, absolute change, multi-period trend, average growth, annualized CAGR, line & bar charts, reset & copy—client-side (FIN-034).
X/Twitter image resizer in-browser: 1600×900 in-stream, multi-image tiles (700×800, 1200×600), 1500×500 header, 400×400 profile (circle preview), cards 800×418 & 800×800, 1080×1920 vertical, DM 1200×675—fit/fill/stretch, focal crop, match JPG/PNG/WebP, batch ZIP—local only (RESIZE-007).
Twitch image resizer in-browser: banner 1200×480, profile 256×256 (circle preview), offline & overlay 1920×1080, panels 320×H, emotes 28/56/112 & sub badges 18/36/72 ZIP, VOD 1280×720, clip 480×272—fit/fill/stretch, focal crop, solid or transparent PNG, batch ZIP—local only (RESIZE-011).
WhatsApp image resizer in-browser: 500×500 profile (circle preview), 1080×1920 status (720×1280 guidance), 800×800 & 1600×900 shared, 512×512 WebP stickers with transparent fit, 600×600 catalog, 1280×720 channel cover—fit/fill/stretch, focal crop, compression estimate, batch ZIP—local only (RESIZE-010).
Viber image resizer in-browser: 720×720 profile & group, 490×490 stickers (or ≤490px longest side), 720×360 channel cover, 600×338 business message, shared ≤1600px longest edge, bot keyboard 48–240px—fit/fill/stretch, focal crop, PNG sticker alpha, sticker grid preview, batch ZIP—local only (RESIZE-016).
WeChat image resizer in-browser: 640×640 profile (circle preview), 1080×1080 Moments with 1–9 grid mock, 900×500 Official header, 200×200 thumbnail, 120×120 Mini Program icon, 240×240 sticker, 900×383 article cover, 1080×1260 channel cover, 430×430 QR background—fit/fill/stretch, focal crop, JPG/PNG, batch ZIP—local only (RESIZE-018).
Free reach vs frequency calculator: impressions, unique reach, budget, CPM—average OTS, optional GRP, effective reach at caps, tradeoff charts, budget planner—client-side (MKT-026).
Free RGB to CMYK converter: manual sliders 0–255 with CMYK %, swatch & simulated preview, or upload JPG/PNG/WebP/BMP/TIFF for C/M/Y/K channel separations and PNG download — 100% client-side Canvas (EDIT-028).
Free RGB to HEX converter: sliders & inputs 0–255, live #RRGGBB or #RRGGBBAA with opacity, HSL & CMYK readouts, swatch, clipboard copy, color history — client-side only (EDIT-030).
Free HEX to RGB converter: #RGB, #RRGGBB, #RRGGBBAA with or without #, live HSL HSV CMYK, rgba & CSS var copy, checkerboard swatch, color history — client-side only (EDIT-031).
Extract Windows .ico frames to JPEG in the browser: batch up to 10 files (15MB each), preview every embedded size on a checkerboard, pick sizes or convert all, JPEG quality + transparency matte, PNG-in-ICO + BMP DIB decode—Canvas + JSZip, no upload (IMG-048).
Free HSL to RGB converter: interactive hue ring, saturation/lightness plane, hsl() & hsla() with opacity, live rgb(), HEX, HSV, CMYK, clipboard copy, color history — client-side only (EDIT-032).
Free marketing ROI calculator: cost and revenue in dollars, ROI %, net profit, profit multiplier, color-coded gauge, multi-campaign rows, copy summary—client-side (MKT-002).
Free rotate photo 180°: JPG, PNG, WebP, BMP, TIFF, GIF — fix upside-down scans and shots, batch toggle, before/after preview, match or PNG/JPEG/WebP, ZIP — client-side Canvas (UTIL-016).
Free flip photo vertical: JPG, PNG, WebP, BMP, TIFF, GIF — top-bottom mirror, batch toggle, drag comparison slider, match or PNG/JPEG/WebP, ZIP — client-side Canvas (UTIL-018).
Free rotate photo 90° clockwise: JPG, PNG, WebP, BMP, TIFF, GIF — batch queue, repeat for 180°/270°, before/after preview, match or PNG/JPEG/WebP, ZIP — client-side Canvas (UTIL-014).
Free rotate photo 90° counter-clockwise: JPG, PNG, WebP, BMP, TIFF, GIF — batch queue, repeat CCW clicks, before/after preview, match or PNG/JPEG/WebP, ZIP — client-side Canvas (UTIL-015).
Free sales volume variance calculator: budgeted vs actual units, standard price & cost—volume variance $, favorable/unfavorable, revenue & profit impact, variance %, bar & waterfall charts, copy—client-side (FIN-017).
Free safety stock calculator: Basic Zσ√L, Greasley demand+lead-time variability, King rule-of-thumb buffer, 90–99.9% service levels with auto Z, holding vs illustrative stockout costs, service-level comparison chart, PDF & CSV—client-side (INV-005).
Free startup cost calculator: legal, equipment, inventory, marketing, rent, tech, insurance, working capital, other—total & buffered funding, monthly burn, runway months, pie & timeline charts, industry templates—client-side (FIN-009).
Free stock-to-sales calculator: beginning inventory ÷ net sales (dollars or units), sales-to-stock inverse, monthly trend chart, industry benchmarks, implied weeks at period pace, PDF & CSV export—client-side (INV-007).
Free weighted average cost calculator: unlimited purchase lots (qty & unit cost), running WAC after each receipt, COGS & ending inventory under WAC, FIFO & LIFO comparison for same sales qty, validation, PDF & CSV—client-side (INV-009).
Free warehouse space estimator: SKUs, pallet size, pallets per SKU, aisle width, selective/drive-in/push-back/pallet-flow heuristics, receiving/shipping/staging/office/break zones, utilization, rack bay estimate, zone diagram, imperial/metric, PDF & CSV—client-side (INV-013).
Free Stripe fee calculator: card online & Terminal, ACH debit/credit, wire, international & FX surcharges, Invoicing, Billing, Radar, Tax, instant payout—gross, fee breakdown, net, volume/custom pricing, reverse-to-gross—multi-currency, client-side (FEE-002).
Free eBay fee calculator: final value on item & shipping, per-order fee, category rates, optional insertion & international & Promoted Listings, Store tiers, below-standard surcharge, COGS profit—client-side (FEE-006).
Free economic order quantity calculator: Wilson EOQ √(2DS/H), orders per year, cycle time, ordering vs holding cost chart, ±10/20% sensitivity, optional quantity-discount tiers with carrying %, PDF & CSV export—client-side (INV-003).
Free Square fee calculator: in-person, online, keyed, invoices, ACH (1% min $1), Afterpay, Cash App Pay—gross, fees, net, all-rail comparison, reverse mode, monthly volume, Free/Plus/Premium plan reference, hardware costs—client-side (FEE-007).
Free Etsy fee calculator: listing & multi-quantity fees, 6.5% transaction fee, Etsy Payments by country, optional Offsite Ads (12%/15%), regulatory %, 2.5% FX, Etsy Plus allocation, COGS & margin—batch lines & monthly volume—client-side (FEE-005).
Free cost-per-mille calculator: enter any two of cost, impressions, or CPM; cost per impression; impressions per dollar; benchmark bar chart vs major platforms—client-side (MKT-004).
Free cost-per-acquisition calculator: solve for spend, conversions, or CPA; acquisitions per $1k spent, budget for a target volume, gauge vs target CPA, illustrative benchmarks—client-side (MKT-005).
Free customer acquisition cost calculator: total marketing & sales costs ÷ new customers; optional breakdown pie, per-category CAC, CLV:CAC gauge, copy summary—client-side (MKT-011).
Free CAGR calculator: beginning & ending value ($), years—CAGR %, total growth %, absolute change, CAGR vs linear path chart, year-by-year projection table, reset & copy—client-side (FIN-021).
Free cart abandonment calculator: visitors, add-to-cart %, abandonment %, AOV → carts, lost revenue mo/yr, recovery at 10/25/50% lower abandonment, funnel, revenue bar chart—client-side (MKT-024).
Free CLV calculator: purchase × frequency × lifespan, optional margin & NPV discount, CLV:CAC, cumulative timeline chart, copy summary—client-side (MKT-012).
Free COGS calculator: beginning inventory + purchases − ending, or direct materials + labor + manufacturing overhead—COGS, optional gross profit & COGS % of revenue, inventory turnover, waterfall & pie charts, copy—client-side (FIN-015).
Free compound interest calculator: principal, annual %, daily/monthly/quarterly/annual compounding, years, optional monthly contribution—future value, interest, contributions, EAR, multiplier, stacked chart, frequency compare, copy—client-side (FIN-012).
Free container loading calculator: 20ft/40ft standard & high-cube, 20ft/40ft reefers—multi-SKU cartons, kg weight limits, stack & rotation toggles, volume & weight utilization, single-SKU benchmarks, simplified 3D-style diagram, PDF & CSV—client-side (INV-016).
Free click-through rate calculator: enter any two of impressions, clicks, or CTR %; clicks-per-impression ratio; projected clicks at scaled reach; benchmark chart vs search, display, email, organic—client-side (MKT-006).
Free cost-per-view calculator: enter any two of cost, views, or CPV; views per dollar; optional budget for target views; benchmark chart vs illustrative YouTube, TikTok, Facebook CPV bands—client-side (MKT-008).
Free contribution margin calculator: per-unit or totals—CM per unit, CM ratio %, total contribution, optional fixed costs → break-even units, stacked bar & gauge, copy—client-side (FIN-006).
Free online photo brightness: JPG, PNG, WebP, BMP, TIFF — slider −100…+100, auto-brightness, luminance histogram before/after, drag compare, download match/JPEG/PNG — client-side Canvas (EDIT-009).
Free CMYK to RGB converter: enter C M Y K 0–100%, live sRGB swatch, RGB HEX HSL copy buttons, print-style presets, subtractive vs formula preview — client-side only (EDIT-029).
Free photo contrast editor: JPG, PNG, WebP, BMP, TIFF — contrast −100…+100, auto histogram stretch, live before/after luminance histograms, drag compare, download match/JPEG/PNG — client-side Canvas (EDIT-010).
Free online gamma correction: JPG, PNG, WebP, BMP, TIFF — slider 0.1–5.0, presets incl. sRGB 2.2, live tonal curve, drag compare, download match/JPEG/PNG — client-side Canvas (EDIT-014).
Free online histogram viewer: JPG, PNG, WebP, BMP, TIFF — luminance + RGB overlay, mean/median/mode/σ, shadow & highlight clipping %, tonal zoom, region marquee — client-side Canvas (EDIT-036).
Free Gaussian blur online: JPG, PNG, WebP, BMP, TIFF — radius 0–50px, full image, rectangle or freehand selective blur, inverse background blur, live before/after slider, download match/JPEG/PNG — client-side Canvas (EDIT-016).
Free photo reflection online: JPG, PNG, WebP, BMP, TIFF — mirror below/top/left/right, height 10–100%, linear or exponential fade, gap & blur, solid or gradient surface, before/after compare, PNG/JPEG export — client-side Canvas (EDIT-026).
Free tilt-shift miniature effect: JPG, PNG, WebP, BMP, TIFF — horizontal or vertical focus strip, blur intensity & gradient softness, saturation/contrast boost, drag compare, download match/JPEG/PNG — client-side Canvas (EDIT-024).
Free transparent background maker in-browser: JPG, PNG, WebP, BMP — click color to remove, tolerance 0–100, contiguous flood fill or global removal, edge feather, checkerboard preview, PNG export — client-side Canvas, longest side ≤2048px (UTIL-019).
Free oil paint effect online: JPG, PNG, WebP, BMP, TIFF — Kuwahara-style brush 1–20, smoothness 0–100%, detail preservation, draggable before/after, download match/JPEG/PNG — client-side Canvas (EDIT-020).
Free photo saturation & vibrance: JPG, PNG, WebP, BMP, TIFF — intensity −100…+100, vibrance mode, selective hue bands, real-time drag compare, download match/JPEG/PNG — client-side Canvas (EDIT-011).
Free screenshot to PDF in-browser: JPG, PNG, WebP, BMP — up to 30 files (50MB each), drag-and-drop reorder, A4/Letter/fit-to-image, portrait/landscape/auto, margins, fit/fill/original, layout + PDF preview, optional metadata—jsPDF, no upload (WEB-001).
Free webpage screenshot to JPEG: paste a public URL, mobile/tablet/desktop or custom viewport, full-page or viewport-only, quality slider, iPhone/iPad/MacBook/Android emulation, server-side Chromium preview & download — fair-use limits (WEB-003).
Free webpage to PDF online: paste a public URL, choose A4, US Letter, or fit-to-content, portrait/landscape, uniform margins, print backgrounds on/off, optional header/footer and print CSS — server-side Chromium, iframe preview & download (WEB-004).
Free WhatsApp click-to-chat link maker in-browser: country codes with flags, phone validation, optional pre-filled message, wa.me + api.whatsapp.com URLs, live preview, HTML button with icon, QR PNG — client-side only (LINK-001).
Free conversion rate calculator: solve for visitors, conversions, or CR %; per-1,000 visitors; visitors for a goal; funnel view; ecommerce/SaaS/B2B benchmarks; micro vs macro toggle—client-side (MKT-009).
Free landed cost calculator: multi-product FOB, intl shipping, insurance, customs duties (%), import VAT (%), broker, domestic freight, handling—allocate by FOB share, manual FX, per-unit & shipment totals, pie chart, Incoterms guide, PDF & CSV—client-side (INV-017).
Free lead time calculator: processing, supplier mfg/prep, transit, receiving & inspection, total days, order-to-delivery dates, multi-supplier comparison, historical mean with σ & CV, PDF & CSV export—client-side (INV-010).
Free lead value calculator: CLV × lead-to-customer close rate for value per lead, pipeline value, CPL guardrails, funnel view, channel comparison—client-side (MKT-010).
Free LinkedIn ad cost estimator: Sponsored Content, Message Ads, Text Ads, Dynamic Ads; awareness, engagement, conversions, lead gen—impressions, CPM, CPC, leads, CPL, benchmarks, charts—client-side (MKT-020).
Free loan amortization calculator: principal, APR, term (years/months), monthly/bi-weekly/weekly—payment, total interest, payoff date, schedule table, principal vs interest chart, balance curve, extra payment impact—client-side (FIN-010).
Free email marketing ROI calculator: platform + campaign costs, list size, open/click/conversion rates, AOV—revenue, net profit, ROI %, funnel & revenue vs cost bars, copy summary—client-side (MKT-013).
Free Meta/Facebook ad budget planner: objective, audience size, CPM, target CPC, daily or monthly budget, duration—reach, impressions, clicks, conversions, spend curve, benchmarks—client-side (MKT-017).
Free affiliate commission calculator: per sale, lead, click, or recurring residuals—rate, volume, lifespan, 12-mo chart, tier comparison, copy summary—client-side (MKT-015).
Free Amazon FBA fee calculator: referral by category, fulfillment by size tier & billable weight, monthly storage (peak/off-peak), aged-inventory estimate, labeling, prep, removal/disposal, profit & ROI vs FBM—client-side (FEE-004).
Free AOV calculator: total revenue & orders—average order value ($), optional revenue per customer & orders per customer, category AOV breakdown, multi-period AOV trend, benchmark bar chart, reset & copy—client-side (FIN-032).
Free ARR calculator: MRR × 12 or annual contract value × customers by plan—MRR equivalent, optional prior ARR for growth %, ARR per customer, plan breakdown & trend charts, reset & copy—client-side (FIN-019).
Free FIGlet-style ASCII banners: 20 fonts, live preview, auto/custom width, default/fitted/full layout, copy & TXT — client-side (TEXT-004).
Free average photo color tool: JPG, PNG, WebP, BMP, TIFF — mean RGB with large swatch, HEX RGB HSL HSV CMYK copy, optional rectangle region, top dominant colors (k-means) — client-side Canvas (EDIT-034).
Free Base64 to image decoder in-browser: data URIs, raw Base64, HTML img/CSS url(), JSON strings — auto-detect JPEG PNG GIF WebP SVG BMP ICO, preview dimensions & size, download original or PNG/JPEG/WebP — client-side only (UTIL-029).
Free TikTok ad cost estimator: In-Feed, TopView, Branded Hashtag, Spark Ads—awareness, traffic, conversions—daily budget, duration, audience—impressions, CPM, views, CPV, clicks, CPC, spend, charts—client-side (MKT-019).
Paste copy, set a target phrase: live word count, exact-match density, highlights, top 20 N-grams (1/2/3), stop-word filter, CSV export—browser-only (SEO-017).
Paste keywords (one per line): exact [brackets], phrase quotes, +BMM syntax, optional negatives, dedupe & lowercase, copy per match type, CSV matrix & Google Ads Editor TSV—browser-only (SEO-021).
Seed keyword → synonyms, related concepts, questions, long-tail & intent phrases: tag cloud, basket, CSV/text export—1000+ local maps, browser-only (SEO-022).
Describe the visual, page topic, optional keyword, image type: 5–8 template alt suggestions under 125 chars, counts, copy, bulk lines, local reference image—browser-only (SEO-019).
Free app icon generator in-browser: upload a 1024×1024 master — export iOS, Android, Windows, and macOS pixel sizes, optional iOS-style rounded mask or circular Android-style crop, preview grid, ZIP with folders per platform — HTML5 Canvas only, no upload (UTIL-025).
Turn titles into SEO-friendly slugs: lowercase, hyphens or underscores, strip accents & specials, optional stop words, max length at word boundaries, transliteration, bulk CSV, local history—browser-only (SEO-020).
Free fancy Unicode text generator in-browser: mathematical bold, italic, script, Fraktur, double-struck, monospace, sans-serif, circled, squared, fullwidth, small caps, superscript, subscript, strikethrough, underline, bubble — 23 live styles, one-click copy (TEXT-002).
Free upside-down text maker in-browser: 180° Unicode flips, mirrored mode, plain reverse, live preview, copy—bios, jokes, social posts (TEXT-007).
Build tagged campaign URLs: required UTMs, presets, live preview & encoding, copy + toast, TinyURL tab, templates & bulk CSV in localStorage, QR PNG, 20-URL history—browser-only (SEO-023).
Free VAT calculator: add/remove VAT, extract from gross, EU + UK reference rates (standard, reduced, super-reduced), batch lines, inclusive toggle, invoice copy/print—client-side (TAX-002).
Free viral coefficient calculator: current users, invites per user, invitation conversion %—K-factor, virality (K>1), 10-cycle compounding vs linear referral baseline, optional cycle time, chart, copy—client-side (FIN-026).
Professional HTML signatures: six templates, table layout, inline CSS, social SVG icons, logo upload or URL, banner & CTA, live preview, plain text, VML-friendly blocks, install guides—browser-only (CONTENT-002).
Definitions, synonyms, etymology, and formality.
Free discount impact calculator: list price, discount %, gross margin %, expected volume lift—new price & margin, break-even volume to hold profit, revenue & profit comparison, bar + break-even line charts, copy summary—client-side (MKT-025).
Free drop shadow tool in-browser: JPG, PNG, WebP, BMP, TIFF — color, blur 0–50px, X/Y offset, opacity, spread, presets (subtle, medium, deep, floating, contact), alpha-aware PNG shadows, transparent/solid/gradient background, live preview, PNG/JPEG export — Canvas only (UTIL-012).
Convert Encapsulated PostScript (.eps) to PNG in the browser: batch up to 12 files (12MB each), DPI 72–600, optional alpha (transparency) vs opaque RGB, Ghostscript WASM rasterization with EPS crop—ZIP download, no upload (IMG-055).
Free flip photo horizontal online: JPG, PNG, WebP, BMP, TIFF, GIF — batch mirror, draggable before/after slider, match or PNG/JPEG/WebP, ZIP — client-side Canvas (UTIL-017).
Score subject lines 0–100: length, spam triggers, emoji, personalization, power words, readability, sentiment—mobile & inbox previews, comparison mode, 100% client-side (CONTENT-001).
Writing and communication assistant: fix grammar, spelling, and punctuation; improve style and readability; see tone and write clearly for emails, documents, and social. Inline highlights and one-click fixes. Free.
Create secure random promo, discount, and voucher codes: charset presets, custom alphabet, grouping, prefix/suffix, bulk export, CSV—runs in your browser.
Convert Canon .CR3 RAW to JPEG in the browser: batch up to 15 files (120MB each), LibRaw WASM decode, JPEG quality 1–100%, original/percent/custom resize, optional EXIF, before-after preview zoom, ZIP—client-side only (RAW-002).
Canon CR2 RAW to JPEG in the browser: batch up to 12 files (120MB each), LibRaw WASM demosaic + canvas encode, quality 1–100, optional EXIF, original / percent / custom resize, embedded-thumbnail vs JPG preview with zoom, ZIP—cross-origin isolated page, no upload (RAW-001).
Free SKU builder in-browser: category prefix (manual/auto), product type, size, color, sequential number, optional random segment, separators, live preview, batch 10–500 or CSV import, copy & CSV/TXT export—client-side only (CODE-001).
Free SMS link maker in-browser: country codes with flags, E.164-style phone validation, optional pre-filled message, sms: URLs (Android ?body= vs iOS &body=), live preview and test, HTML snippet, QR PNG copy/download — client-side only (LINK-003).
Free serial number builder in-browser: prefix, suffix, zero-padded sequence (start + increment), optional date tokens (YYYY, YYMMDD, YYYYMMDD, …), optional random segment, separators, format preview, batch 1–10,000, duplicate detection, copy & CSV/TXT export—client-side only (CODE-004).
Convert JPG, PNG, GIF, BMP, and WebP to optimized WebP in the browser: batch files, quality presets, resize by edge or percent, size stats, download—no server upload.
Fix white balance in the browser: Auto (gray world), Daylight/Cloudy/Shade/Tungsten/Fluorescent/Flash, Kelvin & tint sliders, neutral-point click, before/after slider, JPG/PNG/WebP/BMP/TIFF—Canvas, no upload (EDIT-002).
Rasterize SVG to JPEG in the browser: batch up to 20 files (10MB each), custom width/height with aspect lock, 1×–4× retina scale, quality 1–100, background color for transparency, preview, ZIP—Canvas + Web Worker, no upload.
Rasterize SVG to PNG in the browser: batch up to 20 files (10 MB each), width/height with aspect lock, 1×–4× scale, transparent or solid background, preview, ZIP—Canvas + Web Worker, no upload.
Convert WebP to GIF in the browser: static and animated WebP via ImageDecoder, frame delays, 64–256 colors, dithering, loop control, batch up to 20 (50MB each), ZIP—gif.js workers, no upload (IMG-024).
Convert .webp to lossless PNG in the browser: batch up to 20 files (50MB each), preserve transparency, zlib compression 1–9, 8/24/32-bit output, ZIP download—Canvas, Web Worker, UPNG.js, no upload.
Merge WebP into one PDF in the browser: up to 30 files (50MB each), drag to reorder, A4/Letter/A3/custom or fit-to-image pages, portrait/landscape/auto, margins, fit/fill/original, optional transparency (PNG) or JPEG—jsPDF, no upload (IMG-028).
Convert WebP to Windows Bitmap in the browser: batch up to 20 files (50MB each), 24-bit RGB or 32-bit BGRA, before/after preview, WebP vs BMP size table, ZIP download—createImageBitmap + local DIB encode, no upload (IMG-025).
Extract GIF frames as lossless PNG in the browser: batch up to 20 GIFs (50MB each), first/last/specific/all frames, numbered ZIP, transparency, zlib 1–9, thumbnail strip—gifuct-js, Web Worker, no upload.
GIF to PDF in the browser: up to 15 GIFs (50MB each), first frame or all frames as pages, merge in order, A4/Letter or fit-to-image, margins & fit modes on standard paper, transparency or matte—gifuct-js + jsPDF, no upload (IMG-021).
Change animated GIF speed in the browser: 0.1×–5× multiplier, presets, optional uniform frame delay (ms), side-by-side preview, delay stats—dimensions & loop preserved, gifuct-js + gif.js, no upload (GIF-003).
Convert PDF pages to lossless PNG in the browser: up to 10 PDFs (100MB each), DPI 72–600, all/first/specific pages, optional transparency, zlib 1–9, thumbnail grid, ZIP—PDF.js + Web Workers, no upload.
Convert PDF pages to TIFF in the browser: up to 10 PDFs (100MB each), DPI 72–600, all/first/specific pages, one multi-page TIFF per PDF or one TIFF per page, uncompressed / PackBits (TIFF 32773) / ZIP Deflate (TIFF 8), optional RGBA—PDF.js + UTIF + Web Worker, no upload (IMG-060).
Convert .tif / .tiff to PNG in the browser: up to 15 files (100MB each), all/first/specific pages with page counts, preserve alpha or composite on white, zlib 1–9, ZIP—UTIF.js + Web Workers, no upload.
Compress PNG images online in the browser: lossless recompression, palette quantization (256–32 colors), optional resize, batch queue, byte stats—UPNG.js locally, no upload.
PNG to ICO in the browser: batch up to 10 files (10MB each), sizes 16–256px (incl. 64×64), PNG-in-ICO for every frame for clean alpha, crop or fit, checkerboard previews, one multi-res .ico or split files—no upload.
Merge PNG images into one PDF in the browser: up to 30 files (50MB each), drag to reorder, A4/Letter/A3/custom mm, margins, fit/fill/original, transparency or matte background—jsPDF locally, no upload.
Convert PNG to Photoshop PSD in the browser: batch up to 20 files (100MB each), preserve transparency as layer alpha when present, single editable raster layer with composite + thumbnail, preview, ZIP download—Canvas + ag-psd, no upload (IMG-016).
Convert PNG to TIFF in the browser: up to 20 files (50MB each), DPI 72–600, PackBits or ZIP/Deflate compression, optional alpha and multi-page TIFF, batch ZIP—UTIF.js + Canvas + Web Worker, no upload.
Convert PNG to SVG in the browser: batch up to 10 files (20 MB each), ImageTracer vector trace (Web Worker) or base64 PNG embed, color count 2–32, detail/smoothing/threshold, transparency-aware tracing, custom output box, live preview, ZIP—no upload.
Convert iPhone HEIC/HEIF to lossless PNG in the browser: batch up to 20 files, zlib level 1–9, optional EXIF eXIf chunk, auto-rotate, ZIP download—heic2any + local PNG encode, no upload.
Extract Windows .ico to PNG in the browser: batch up to 20 files (10MB each), PNG-in-ICO passthrough or DIB decode with alpha, pick one embedded size or export every resolution, ZIP download—decode-ico + Canvas, no upload (IMG-049).
Convert iPhone HEIC/HEIF to GIF in the browser: batch up to 20 files (50MB each), burst & multi-layer sequences as animated GIF, Auto/256/128/64 colors, Floyd–Steinberg dither, frame delay & loop, separate GIF per layer or ZIP—heic2any + gif.js, no upload (IMG-043).
Convert iPhone HEIC/HEIF to Windows Bitmap in the browser: batch up to 20 files (50MB each), 24/32-bit BMP, EXIF auto-rotate, before/after preview, ZIP—heic2any + local DIB encode, no upload (IMG-044).
Merge iPhone HEIC/HEIF into one PDF in the browser: up to 30 files (50MB each), drag to reorder, A4/Letter/A3/fit-to-image/custom pages, portrait/landscape/auto, margins, fit/fill/original, EXIF auto-rotate, optional alpha—heic2any + jsPDF, no upload (IMG-047).
Convert iPhone HEIC/HEIF to archival TIFF in the browser: batch up to 20 files (50MB each), DPI 72–600, uncompressed / PackBits (32773) / ZIP Deflate (TIFF 8), optional alpha and EXIF, auto-rotate, ZIP—heic2any + UTIF.js + Web Worker, no upload (IMG-045).
Convert iPhone HEIC/HEIF to WebP in the browser: batch up to 20 files (50MB each), lossy quality 1–100 or lossless (best effort), optional transparency flattening, EXIF auto-rotate, size comparison, ZIP—heic2any + canvas WebP encode, no upload (IMG-046).
Convert .tif / .tiff to JPEG in the browser: batch up to 15 files (100MB each), all/first/specific pages, quality 1–100, transparency matte color, UTIF.js + Web Worker, ZIP download, size stats—no upload.
Convert .tif / .tiff to WebP in the browser: batch up to 15 files (100MB each), all/first/specific pages, lossy quality or lossless (best effort), optional alpha flattening, UTIF.js + Web Worker, ZIP, size comparison—no upload (IMG-033).
Convert .tif / .tiff to GIF in the browser: batch up to 15 files (100MB each), multi-page as animated GIF or separate GIFs, 256-color quantization, optional dithering, frame delay & loop—UTIF.js + gif.js, no upload (IMG-031).
TIFF to PDF in the browser: up to 15 files (100MB each), multi-page TIFF as multi-page PDF, merge in order, A4/Letter/A3 or fit-to-image, portrait/landscape/auto, margins, fit/fill/original, optional transparency—UTIF.js + jsPDF, no upload (IMG-034).
Extract JPEG stills from animated GIFs in the browser: up to 20 files (50MB each), first/last/specific frame or all frames as numbered JPGs in ZIP, quality 1–100, matte for transparency, thumbnail strip—gifuct-js + Canvas, no upload.
Animated GIF maker from JPG, PNG & WebP stills in-browser: drag-and-drop timeline, reorder frames, global or per-frame delay (100–5000 ms), infinite/once/custom loop, crossfade transitions, letterboxed resize with aspect lock, Auto/256/128/64 colors, dither, preview & download—gif.js workers, no upload (GIF-002).
Extract frames from animated GIFs in the browser: thumbnail grid with frame numbers & per-frame delay, click or range-select, export PNG or JPEG stills, ZIP or per-frame download—disposal-aware composite via gifuct-js + Canvas, no upload (GIF-007).
Resize animated GIFs in the browser: pixel & percent modes, aspect lock, Discord (128²), Slack (480w), Twitter/X (1200w) presets, original vs output file size, dual preview—preserves frame delays & Netscape loop—gifuct-js + Canvas + gif.js, no upload (GIF-004).
Extract still frames from MP4, WebM & MOV in the browser: play/pause, frame stepping (assumed FPS), scrub timeline with markers, PNG/JPEG export, interval sampling (1s–custom) & ZIP—HTML5 video + Canvas, no upload (GIF-008).
Crop animated GIFs in the browser: draggable resizable overlay on the first frame, aspect presets (free, 1:1, 4:3, 16:9, 9:16), same crop on every frame, before/after dimensions & dual preview—preserves delays & loop—gifuct-js + Canvas + gif.js, no upload (GIF-006).
Convert Windows Bitmap to JPEG in the browser: batch up to 20 BMP files (100MB each), quality 1–100, optional metadata, matte for 32-bit alpha, before/after size stats (often 90%+ smaller), ZIP download—Canvas API, no upload.
Convert .bmp to lossless PNG in the browser: batch up to 20 files (100MB each), zlib compression 1–9 (default 6), preserve 32-bit alpha or flatten to white, per-file size comparison vs BMP, PNG or ZIP—Canvas decode + local zlib encode, no upload.
Convert BMP to TIFF in the browser: batch up to 20 files (100MB each), DPI 72–600, uncompressed / PackBits (TIFF 32773) / ZIP Deflate (TIFF 8), optional 32-bit alpha as RGBA TIFF, ZIP download—UTIF.js + Canvas + Web Worker, no upload (IMG-038).
Convert Windows Bitmap to GIF in the browser: batch up to 20 files (50MB each), Auto/256/128/64 color modes, Floyd–Steinberg dithering toggle, matte for 32-bit BMP alpha, per-file or ZIP—gif.js workers + Canvas decode, no upload (IMG-037).
Free break-even calculator: fixed costs, variable cost & price per unit—break-even units & revenue, contribution margin & ratio, optional margin of safety, CVP chart (fixed, total cost, revenue)—client-side (FIN-005).
Free cash burn calculator: period cash balances or monthly revenue & expenses—gross burn, net burn, runway months, zero-cash date, balance decline & burn comparison charts, copy—client-side (FIN-022).
Free simple interest calculator: principal, annual %, time in years/months/days—solve for any fourth value; interest, total, daily rate, period breakdown, linear growth chart, reset & copy—client-side (FIN-011).
Free business valuation calculator: revenue, EBITDA, net assets, industry multiple bands—revenue/EBITDA/asset ranges, blended mid & band, multiplier comparison, bar chart, copy—client-side (FIN-008).
Free EBITDA calculator: bottom-up (net income + interest, taxes, D&A) or top-down (revenue − OpEx excl. D&A)—EBITDA margin %, optional EV/EBITDA, net income waterfall, illustrative margin bands, copy—client-side (FIN-007).
Free effective tax rate calculator: income + tax paid or bracket slices—effective %, marginal vs effective chart, tax-by-slice bars, after-tax income, copy summary—client-side (FIN-016).
Free overhead rate calculator: total overhead, allocation base (DLH, DLC $, machine hours, units)—predetermined rate, applied overhead, per-unit burden, category pie chart, optional rate comparison bar, copy—client-side (FIN-014).
Free marginal revenue calculator: two (Q, TR) points—MR = ΔTR ÷ ΔQ, MR vs average revenue, ΔTR, revenue-max hint, TR and MR/AR charts, reset & copy—client-side (FIN-033).
Free MRR calculator: customers × ARPA or detailed bridge (new, expansion, contraction, churn, reactivation)—total MRR, net new, growth %, ARR ×12, waterfall & trend charts, copy—client-side (FIN-018).
Convert Photoshop PSD to PNG in the browser: batch up to 10 files (100MB each), preserve transparency, zlib 1–9, flatten or embedded composite, optional per-layer ZIP, custom resize—ag-psd + Web Worker, no upload.
Free palette from image: JPG, PNG, WebP, BMP, TIFF — k-means 4–12 colors, Vibrant/Muted/Dark/Light/Pastel presets, HEX RGB HSL, proportions, CSS JSON ASE PNG export — 100% client-side Canvas (EDIT-035).
Cryptographically strong passwords, memorable passphrases, numeric PINs, and hex API keys: length and charset controls, symbol presets, ambiguous-character exclusion, batch export, entropy meter—runs locally in your browser.
Free payment gateway comparison: volume, AOV, methods—PayPal, Stripe, Square, Shopify Payments, Braintree, Authorize.net, Adyen, Amazon Pay, wallets, BNPL—sortable table, monthly breakdown, filters, badges, annual volume chart—client-side (FEE-009).
Free payback period calculator: initial investment, even or year-by-year cash flows—simple & optional discounted payback, cumulative table, break-even year, chart vs zero, reset & copy—client-side (FIN-030).
Free percentage discount calculator: solve original price, sale price, or discount % from any two—sequential stacked discounts, quantity line totals, before/after compare, savings badge, copy & reset—client-side (FIN-036).
Check meta title and description length with character and pixel limits, live desktop and mobile SERP previews, copy and export—runs locally in your browser.
Free logo overlay compositor: base + multi PNG/JPEG/WebP logos, drag position, size % or px, opacity, rotation, 16 blend modes, layer order, live Canvas preview, PNG/JPEG export — client-side only (UTIL-009).
Add a logo watermark in-browser: batch JPG/PNG/WebP/GIF/BMP/TIFF, PNG alpha, size & opacity, 9-point grid or drag, rotation, padding, tiling, live preview, PNG/JPEG + ZIP — client-side Canvas (UTIL-008).
Free 3D LUT from reference image: 33³ table, .cube export, optional before image with compare slider and intensity 0–100% — client-side Canvas only (EDIT-003).
Free online sepia tone: JPG, PNG, WebP, BMP, TIFF — adjustable intensity 0–100%, draggable before/after preview, download match/JPEG/PNG — 100% client-side Canvas (EDIT-001).
Free side-by-side collage maker in-browser: 2–5 images in one row, gap 0–50px, white/black/custom border color, match height (shortest/tallest/custom px), max width cap, live preview, PNG/JPEG/WebP — 100% client-side Canvas (COLL-003).
Free vertical photo stacker in-browser: 2–5 images top-to-bottom, gap 0–80px & color, matched output width (presets or custom), live preview, PNG/JPEG/WebP — 100% client-side Canvas (COLL-004).
Free vertical panorama stitcher in-browser: 2–10 images top-to-bottom, width normalization, seam overlap blending 0–200px (clamped per pair), reorder, live preview, PNG/JPEG/WebP — 100% client-side Canvas (COLL-007).
Free multi-photo collage combiner in-browser: 2–10 images, templates 2×1 through 3×3 plus custom grid (≤10 cells), drag-and-drop cells, gap 0–50px, background color, per-cell pan/crop, custom output width/height, preview, PNG/JPEG/WebP — client-side Canvas (COLL-005).
Free caption line-break formatter: zero-width, dot & braille-blank separators, Instagram/Facebook/LinkedIn/TikTok presets, previews, hashtag fold, char & word count, copy—client-side (TEXT-001).
Free case changer: UPPERCASE, lowercase, Title & sentence case, camelCase, PascalCase, snake/kebab/CONSTANT/dot/path, toggle & inverse — grid or single view, char/word/line counts, copy each — client-side (TEXT-005).
Free trademark & special symbol copier in-browser: ™ ® © ℠, currency, math, arrows, typography, Greek, fractions, diacritics — search, category tabs, Unicode/HTML/CSS reference, one-click copy, recent session list (TEXT-008).
Free text reverser: full string, word order, letters per word, Unicode upside-down flip & mirror — live previews, copy per mode — client-side (TEXT-006).
Free social carousel builder in-browser: up to 20 slides, Instagram 1080×1080 & 1080×1350, LinkedIn & Facebook 1080×1080, drag reorder, optional per-slide text & 1/N indicator, arrow preview, numbered slides ZIP — Canvas + JSZip (COLL-008).
Free solid color image generator in-browser: pixel width and height, color picker, HEX, RGB and HSL sliders, named swatches, social/wallpaper/web/print presets, live Canvas preview, HEX RGB HSL CMYK readouts, PNG JPEG WebP download — no upload (UTIL-020).
Free favicon generator in-browser: JPG, PNG, WebP, SVG — PNG sizes 16–512, ICO 16+32+48, apple-touch-icon, Android chrome icons, copy HTML head tags, site.webmanifest, ZIP download — 100% client-side Canvas (UTIL-024).
Free photo solarize filter: JPG, PNG, WebP, BMP, TIFF — threshold 0–255, intensity 0–100%, draggable before/after preview, download match/JPEG/PNG — client-side Canvas (EDIT-018).
Free duotone photo effect: JPG, PNG, WebP, BMP, TIFF — shadow & highlight colors, 11+ presets, 0–100% blend vs original, drag compare, download match/JPEG/PNG — client-side Canvas (EDIT-005).
Free photo copyright tool in-browser: visible text overlay or embed EXIF Copyright, IPTC Notice/Credit/Creator, XMP Rights — Standard/CC/ARR/custom templates, batch + ZIP — JPG, PNG, WebP, BMP, TIFF — client-side Canvas + metadata (UTIL-032).
Free barcode generator in-browser: Code 128, Code 39, EAN-13/8, UPC-A/E, ITF-14, Codabar, MSI, Pharmacode — bar width/height, colors, caption font, show/hide text, live SVG preview, download PNG/JPG (print DPI scale) or SVG — JsBarcode, client-side only (UTIL-030).
Free photo frame adder in-browser: JPG, PNG, WebP, BMP, TIFF — 22 templates (wood, metal, gallery, Polaroid, film strip, digital), mat padding and color, frame thickness, optional color tint, portrait/landscape aware preview, PNG/JPEG export — Canvas only (UTIL-011).
Free unsharp mask sharpener: JPG, PNG, WebP, BMP, TIFF — amount 0–500%, radius 0.1–10px, threshold 0–255, Subtle/Standard/Strong/Print/Web presets, drag compare & zoom preview, download match/JPEG/PNG — client-side Canvas (EDIT-015).
Free photo straightener: JPG, PNG, WebP, BMP, TIFF — auto-detect horizon/dominant lines, draw horizontal/vertical reference line, −45°…+45° at 0.1°, grid overlay, auto-crop or full frame, transparent or fill, live compare, download match/JPEG/PNG — client-side Canvas (EDIT-037).
Free photo to ASCII art: JPG, PNG, WebP — brightness-mapped characters, width 40–150 columns, standard/blocks/custom charsets, color HTML or monochrome, invert, live preview, copy / TXT / PNG export — 100% client-side Canvas (WEB-007).
Free photo to black & white: JPG, PNG, WebP, HEIC — luminosity, average & desaturation, vintage presets (high contrast, low key, high key, sepia), brightness/contrast, color vs B&W compare, batch ZIP — client-side Canvas (IMG-063).
Free photo pixelate tool: JPG, PNG, WebP, BMP, TIFF — block size 2–100px, full image or rectangle selective pixelation, square/circle/diamond cells, before/after slider, download match/JPEG/PNG — client-side Canvas (EDIT-023).
Free online photo noise: Gaussian, uniform, salt & pepper, film grain — intensity 0–100%, grain size, monochromatic or color noise, drag before/after, download match/JPEG/PNG — client-side Canvas (EDIT-017).
Free online posterize filter: JPG, PNG, WebP, BMP, TIFF — levels 2–32 per channel, RGB or HSL, live palette count (levels³), drag compare, download match/JPEG/PNG — client-side Canvas (EDIT-019).
Free photo color inverter: JPG, PNG, WebP, BMP, TIFF — full RGB invert, smart skin-friendly invert, selective 60° hue wedges, 0–100% intensity, drag compare, download match/JPEG/PNG — client-side Canvas (EDIT-008).
Preview Google organic listings with URL, title, and description: desktop and mobile layouts, favicon and breadcrumbs, compare mode, PNG export, shareable links—free in the browser.
Build og:title, og:description, og:image, og:url, type, article & video fields: live Facebook, LinkedIn, Discord & messaging previews, image size auto-detect, copy HTML—free (SEO-012).
Build Product JSON-LD with offers, reviews, GTIN/SKU, live highlighted preview, Google-oriented validation, copy and download—free in your browser.
Build Review or AggregateRating JSON-LD with many itemReviewed types, live highlighted preview, Google-style validation, multiple reviews, copy and download—free in the browser (SEO-004).
Build Organization JSON-LD with logo, contact points, sameAs social URLs, PostalAddress, and legal identifiers—live preview, validation, copy and download—free in your browser (SEO-005).
Build LocalBusiness JSON-LD with subtypes, NAP, GeoCoordinates, weekly OpeningHoursSpecification, sameAs, payments, optional aggregateRating—geocode from address, live preview, validation—free in your browser (SEO-008).
Build BreadcrumbList JSON-LD with unlimited levels, drag-and-drop reorder, auto positions, visual trail preview, templates, URL validation—copy and download—free in your browser (SEO-007).
Free client-side name ideas from keywords: 8 strategies (blends, prefixes, metaphors, alliteration, acronyms, templates), industry terms, style & length filters, domain + USPTO links, favorites & export (CONTENT-004).
Validate absolute URLs, normalize https://, www, and trailing slashes, copy HTML rel=canonical tags or HTTP Link headers, batch mode and scenario presets—free in your browser (SEO-016).
Build FAQPage JSON-LD with unlimited Q&A pairs, drag-and-drop, HTML answers, URL/HTML and bulk import, live preview, Rich Results Test link—free in your browser (SEO-006).
Build HowTo JSON-LD with unlimited steps, drag-and-drop tools/supplies/steps, ISO 8601 duration and cost helpers, templates, live preview, validation—free in your browser (SEO-010).
Build Person JSON-LD for authors and profiles: name, job title, bio, image, worksFor, alumniOf, sameAs social URLs, awards, knowsAbout, languages—live preview, validation, copy & download—free in your browser (SEO-009).
Build VideoObject JSON-LD with duration picker, clips, live BroadcastEvent, transcript, YouTube oEmbed auto-fill, validation, copy & download—free in your browser (SEO-011).
Export MP4, WebM, or MOV as numbered JPEG stills in-browser: time range, every frame (requestVideoFrameCallback) or 1–30 fps sampling, quality slider, frame & ZIP size estimates, frame_001.jpg ZIP—Canvas + JSZip, no upload (GIF-009).
Build twitter:card meta tags for X: Summary, Summary Large Image, Player, and App—live preview, character limits, image guidance, Open Graph comparison, syntax-highlighted HTML—free in your browser (SEO-013).
Free tagline & slogan generator: business name, industry, keywords, tone, 100+ formulas—20–30 ideas per run, favorites, sort/filter, download & share—runs in your browser (CONTENT-003).
Free YouTube titles from topic + keyword: 10 formula families, 20–30 ideas, ~70 char budget, keyword-in-first-half check, search preview, thumbnail text, favorites—100% client-side (CONTENT-008).
Free YoY growth calculator: previous vs current year or 2–5 periods—YoY %, absolute change, trend, line & bar charts, average YoY, CAGR, copy summary—client-side (FIN-020).
Raw YUV/NV12/NV21/YUY2 to JPEG in the browser: set pixel format and frame size, extract first frame, all frames (capped per run), or 1-based range, quality 1–100, previews + ZIP, BT.601 limited range, 100MB max—no upload (IMG-064).
Free client-side hashtag sets: 5000+ corpus, four popularity tiers, niche + content-type tags, compound keywords, presets (reach / balanced / niche / growth), selectable chips, copy, history & saved sets—up to 30 tags (CONTENT-007).
Free Google Ads budget calculator: Search, Display, Shopping, YouTube, Performance Max—CPC, CTR, CVR, daily budget, target CPA → monthly projection, CPA feasibility, charts—client-side (MKT-018).
Free client-side planner: how many 5★ or 4★ reviews to hit a target Google average—milestones, chart, timeline, what-if slider, 1-star reverse risk, industry benchmarks, copy summary (CONTENT-011).
Free privacy policy template from a 7-step wizard: business details, data collection, usage, sharing, cookies, GDPR/CCPA/COPPA sections, live preview, copy HTML or text, download HTML, print PDF—100% client-side (LEGAL-001).
Free shipping policy from a 6-step wizard: domestic methods & rates, free-shipping thresholds, international duties, processing times, tracking & signatures, PO Box/APO, lost packages, splits & backorders—HTML/TXT export, print—100% client-side (LEGAL-004).
Free Shopify fee calculator: plan tiers Starter–Plus, Shopify Payments vs third-party surcharge, online & in-person rates, international +1.5%, gross/net breakdown, reverse mode, all-plans compare, subscription amortization, plan upgrade break-even—client-side (FEE-003).
Free cookie policy from a 4-step wizard: business info, essential/functional/analytics/ad/social categories, consent tool & retention, GDPR/ePrivacy/CCPA/PECR toggles—live preview, HTML/text/Markdown export, audit table template—100% client-side (LEGAL-005).
Free client-side GDPR consent copy: cookie banner, form checkboxes, email marketing, data processing, third-party sharing—formal/friendly/concise, HTML+CSS snippets, live & mobile preview, Article 7-style checklist, no pre-checked boxes (LEGAL-006).
Free FTC-oriented affiliate disclosures: programs, placements, tone—full page (~500–800 words), in-content, sidebar, email, Instagram/YouTube/X/TikTok notes, Amazon Associates line—HTML/text copy + checklist—100% client-side (LEGAL-009).
Free copyright notice builder: owner & year range, content-type tags, All Rights Reserved / Creative Commons / public domain, DMCA agent template, HTML footer with auto-year script, meta tag—plain + HTML copy, 100% client-side (LEGAL-010).
Free disclaimers for 14 contexts: general, medical, financial, legal, affiliate, fitness, testimonial, professional advice, views & opinions, E&O, fair use, email, product liability, no responsibility—short/long HTML & text, combined or per section, placement tips—100% client-side (LEGAL-008).
Free client-side invoices: business & client blocks, line items, tax & discounts, Net 15–60, USD/EUR/GBP/CAD/AUD/JPY/INR, payment & bank details, 4 templates, live preview, print/PDF, HTML export, duplicate & local tracker (LEGAL-014).
Free 7-step EULA wizard: desktop/mobile/SaaS/extensions/games—license type, devices, restrictions, data/telemetry, warranty, liability, termination, support, disputes—HTML/Markdown/text/PDF—100% client-side (LEGAL-011).
Free model, minor, property, and group/event release forms: parties, permitted uses, territory, duration, exclusivity, compensation, signatures—HTML/text export, print/PDF—100% client-side (LEGAL-013).
Free printable receipts in your browser: retail thermal (80mm), professional full page, restaurant (server + tip), service (hours × rate)—tax, discount, change due, optional QR, print/PDF/HTML, mailto. No account (LEGAL-016).