QuillBot
AI paraphrasing and grammar tool trusted by 35 million users worldwide
What is QuillBot?
QuillBot has grown to 35 million users by solving a specific problem better than anyone else: paraphrasing text while preserving meaning. The Paraphraser offers seven modes — Standard, Fluency, Formal, Academic, Simple, Creative, and Expand/Shorten — giving fine-grained control over how the output is rewritten. This makes it the top tool for students rewriting sources, non-native speakers improving fluency, and writers looking for fresh ways to express familiar ideas.
Beyond paraphrasing, QuillBot has expanded into a comprehensive writing suite: Grammar Checker, Summarizer, Citation Generator, Plagiarism Checker, and Translation (in 30+ languages). The free tier is generous — 125 words per paraphrase session with access to the Standard and Fluency modes. Premium unlocks unlimited word counts and all paraphrasing modes.
QuillBot's 30% lifetime recurring affiliate commission makes it highly attractive for student-focused content creators. The tool is particularly dominant in the academic market, where students rely on it for paraphrasing research sources and improving academic prose without plagiarizing. This academic focus means it handles formal, technical, and research writing better than most generalist AI tools.
Key Features
- Paraphraser with 7 modes (Standard, Fluency, Formal, Academic, Creative, Simple, Expand)
- Grammar Checker
- AI Summarizer
- Citation Generator (APA, MLA, Chicago)
- Plagiarism Checker
- Translation (30+ languages)
- Word flipper and synonym controls
- Google Docs extension
- Microsoft Word add-in
- Chrome extension
Pros & Cons
Pros
- Best paraphrasing tool in the market — 7 modes for fine-grained rewriting
- Comprehensive free plan — 125 words/session, grammar checker, summarizer included
- 30% lifetime recurring affiliate commission
- Citation generator is unique and valuable for academic users
Cons
- Paraphrase sessions limited to 125 words on free plan
- Premium modes (Formal, Academic, Creative) require paid plan
- Not a full AI writing tool — focused on editing existing text, not generating from scratch
- Plagiarism checker is basic compared to Turnitin or Copyscape
Pricing
Model: Subscription
| Plan | Price | Key Limits |
|---|---|---|
| Free | $0/mo | 125 words/paraphrase, 2 paraphrase modes, 1200 word summarizer |
| Premium | $9.95/mo | Unlimited words, all 7 modes, plagiarism checker, Compare Modes |