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QuillBot and Grammarly are two of the most popular writing tools, but they excel in different areas. QuillBot leads in paraphrasing; Grammarly leads in grammar checking. Here's a detailed comparison.
Grammarly is better for grammar and tone. QuillBot is better for paraphrasing and rewriting. For AI detection and humanization, consider SynthQuery as a complement.
| Feature | Quillbot | Grammarly |
|---|---|---|
| Grammar Checking | 10 modes | Industry-leading with tone detection |
| Paraphrasing | 10 modes with Freeze Words | Basic rewrite suggestions |
| AI Detection | Basic | Basic |
| AI Humanizer | 2 modes | Not available |
| Tone Detection | Not available | Real-time tone analysis |
| Chrome Extension | 5M+ installs | 10M+ installs |
| Plagiarism Checker | 20 pages/mo (Premium) | Premium only |
| Summarizer | Available | Not available |
| Translator | Available | Not available |
| GrammarlyGO / AI Writing | Not available | Context-aware AI writing |
| Plan | Quillbot | Grammarly |
|---|---|---|
| Free | Free (125 words) | Free (basic) |
| Starter | $9.95/mo | $12/mo |
| Pro | $19.95/mo | $15/mo (Business) |
Writers who frequently need to rephrase content and want paraphrasing, summarizing, and translating in one tool.
Writers who prioritize grammar accuracy and want writing assistance across every platform they use.