QuillBot Review: The AI Paraphraser & Grammar Tool
WritingFreemiumIt is the AI paraphrasing and grammar tool that rewrites, checks, summarizes, and humanizes your writing in one suite.
What Is QuillBot and How Does It Work?
It is an AI writing assistant built around a powerful paraphrasing engine. Paste a sentence or paragraph, pick a mode, and it rewrites it while keeping the original meaning — with side-by-side comparison so you can see exactly what changed.
Beyond rewriting, it includes a grammar checker, text summarizer, plagiarism checker, AI content detector, humanizer that rewrites AI text to sound more natural, translator, and citation generator. Everything lives in one interface, which is why it has become the default alternative to Grammarly for students and professionals.
QuillBot Features: Paraphraser, Grammar & More
The tool is more than a thesaurus on steroids.
- Paraphraser with 9+ modes including Formal, Academic, and Creative
- Grammar checker and spell checker
- Summarizer for long documents
- Plagiarism checker and AI Detector
- AI Humanizer to make AI text read naturally
- Translator in 40+ languages and citation generator
QuillBot vs Grammarly: What's the Difference?
Grammarly excels at real-time grammar and style correction as you type — it's an editor. It excels at rewriting and paraphrasing — it's a transformer. Its paraphraser is widely considered the best in the category, and its all-in-one suite (plagiarism, summarizer, AI detection) costs less than Grammarly Premium.
Many writers use both: Grammarly catches errors while typing, and the paraphraser rewrites sections that need a different tone or better flow.
QuillBot Pricing: Free vs Premium
Free plan; Premium $19.95/mo ($8.33/mo billed annually); Team plans custom
Free
For light, occasional writing help.
- Paraphrase up to 125 words
- Standard & Fluency modes
- Grammar checker
- Free AI Detector & summarizer
Premium
Unlimited rewriting across every mode. Billed $99.95/year.
- Unlimited paraphrasing
- All 9+ modes & custom tones
- Plagiarism checker
- Full AI Humanizer
- Faster processing
Team
For teams and institutions.
- Centralized admin
- Per-seat licensing
- Priority support
- Annual billing
Best For
Recommended use cases and scenarios where QuillBot shines.
QuillBot: Strengths and Weaknesses
The service is the best value in AI writing tools, with a few trade-offs to note.
Pros
- Best-in-class paraphrasing with 9+ modes
- All-in-one suite: grammar, summary, plagiarism, AI detection
- Generous free tier with free AI Detector
- Chrome, Word, and Google Docs integrations
Cons
- Free paraphrasing limited to 125 words
- Plagiarism checker is Premium-only
- Premium monthly price is steep ($19.95)
- AI Humanizer quality varies
Frequently Asked Questions
Common questions about QuillBot, answered.
Is it free?
Yes. The free plan gives you paraphrasing up to 125 words per run, grammar checking, a summarizer, and a completely free AI Detector with no word limit. Premium removes word caps and unlocks every mode.
How much does Premium cost?
Premium is $19.95 per month, $13.31 per month billed quarterly, or $8.33 per month billed annually ($99.95/year). Students often qualify for additional discounts.
Is it better than Grammarly?
They serve different purposes. The paraphraser is better for paraphrasing, rewriting, and humanizing AI text. Grammarly is better for real-time grammar and style checking as you write. Both are popular — many people subscribe to both for different jobs.
Does it detect AI-written text?
Yes. It has a built-in AI Detector that is completely free, and an AI Humanizer that rewrites AI-generated text to sound more natural and pass AI detection in most cases.
Is it allowed in school?
The tool is widely used by students for paraphrasing and grammar help. Academic integrity policies vary by school — it's best used to understand and improve your own writing rather than to generate text for submission.
Reviews & Ratings
4.7
Based on 16,700 reviews
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Daniel Kim
The best investment I've made this year. Saves me hours every single week.
Priya Sharma
Fast, intuitive, and the results speak for themselves. Easily worth the subscription.
James Okafor
Great value for the price. The learning curve is small and the payoff is big.
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