QuillBot
by QuillBot (Course Hero)
AI paraphrasing and writing assistant for students and professionals.
Score
Score
Our verdict
QuillBot is the most popular AI paraphrasing tool, offering multiple rewriting modes (Fluency, Formal, Creative, etc.) alongside grammar checking, plagiarism detection, and summarization. Best for students writing papers and professionals improving clarity. The main caveat is limited generative AI compared to ChatGPT and less depth than Grammarly for grammar correction.
Overview
Screenshot
Score breakdown
Overall score
Scores are editorial assessments by the Compare Best AI team on a 0–10 scale.
Expert review
CBAI Editorial Team
Compare Best AI · Editorial Team
QuillBot built its reputation on paraphrasing — paste text in, and it rewrites it in multiple modes: Standard, Fluency, Formal, Simple, Creative, Expand, and Shorten. This makes it invaluable for students rephrasing research, professionals refining emails, and non-native English speakers improving their writing.
How we tested
Days tested
14 days
Tasks evaluated
- ·Paraphrasing quality across modes
- ·Grammar checking accuracy
- ·Plagiarism detection
- ·Summarization quality
- ·Chrome extension workflow
- ·Comparison with Grammarly
Method
Side-by-side with Grammarly and Wordtune on identical paraphrasing and grammar tasks
Reviewer
CBAI Editorial Team
Plans & pricing
Free
Trying paraphrasing and grammar tools
- 125-word paraphrasing limit
- Standard and Fluency modes
- Grammar checker
- Summarizer (1,200 words)
- Limited word count
- 2 modes only
Premium
Students and professionals needing full writing tools
- Unlimited paraphrasing
- All 7 modes
- Plagiarism checker (20 pages/month)
- Advanced grammar
- Unlimited summarizer
- Tone detector
- Compare mode
- Faster processing
Pricing may vary by region. Always verify on the vendor's website.
Feature comparison
| Feature | QuillBot | Grammarly | Wordtune |
|---|---|---|---|
| Paraphrasing | |||
| AI paraphrasing modes | |||
| Grammar | |||
| Grammar checking | |||
| Academic | |||
| Plagiarism detection | |||
| Citation generator | |||
| Pricing | |||
| Free tier | |||
| Under $10/month | |||
Is it right for you?
Good fit for
Students
Paraphrase research sources, check grammar, detect plagiarism, and generate citations for academic papers.
Non-native English speakers
Multiple paraphrasing modes improve fluency and formality of English writing.
Professionals
Quickly rephrase emails, reports, and documents for clarity and professionalism.
Less suited for
Content generation
QuillBot rephrases existing text; ChatGPT and Claude generate original content from prompts.
Advanced grammar correction
Grammarly provides more comprehensive and contextual grammar suggestions.
Creative writing
QuillBot is for rephrasing, not creative writing; ChatGPT handles creative generation better.
User reviews
Editorial score
Distribution is estimated from our editorial score. Verified user reviews coming soon.
Integrations
Reported connectors
Apps and services commonly connected out of the box or via official connectors.
- ["Chrome Extension", "Microsoft Word", "Google Docs", "macOS app"]
Details
Category
Price
- Free (125 words)
- Premium $9.95/mo
Free version
Best for
- Paraphrasing and rewording text naturally
- Academic writing and citation generation
- Summarizing long articles quickly
Frequently asked questions
QuillBot
Content & Design
Ready to get started?
Visit the QuillBot website to explore plans and start your free trial.
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