Quillbot
AI paraphrasing, grammar checking, and writing assistant for students
What is Quillbot?
Quillbot is an AI-powered writing toolkit popular with students, researchers, and professionals. Its core paraphraser rewrites text in multiple modes — Standard, Fluency, Formal, Academic, Simple, Creative, and Expand/Shorten — giving users fine-grained control over tone and style while preserving meaning.
Beyond paraphrasing, Quillbot bundles a grammar checker, summarizer, citation generator, plagiarism checker, and AI content detector into one platform. The summarizer condenses long texts into key bullet points or paragraph form. The citation generator supports APA, MLA, Chicago, and other formats. The plagiarism checker scans against billions of web pages and academic databases.
Quillbot integrates with Chrome, Word, and macOS, making it accessible directly within writing workflows. The free tier allows paraphrasing up to 125 words at a time with Standard and Fluency modes. Premium unlocks unlimited paraphrasing length, all writing modes, advanced grammar rewrites, and the plagiarism checker.
Acquired by Course Hero, Quillbot has grown to over 35 million monthly visitors, making it one of the most-used writing tools in education.
Key Features
Pros & Cons
Pros
- ✓ Multiple paraphrasing modes give fine control over output style
- ✓ All-in-one writing toolkit reduces need for separate tools
- ✓ Browser and Word integrations fit into existing workflows
- ✓ Extremely popular with proven reliability at scale
Cons
- ✗ Free tier paraphrasing limited to 125 words at a time
- ✗ Plagiarism checker only available on Premium
- ✗ Paraphrasing can sometimes lose subtle meaning in complex academic text
Pricing
Free basic paraphrasing; Premium at $9.95/mo unlocks all features
Free
$0
- ✓125-word paraphrasing limit
- ✓Standard and Fluency modes
- ✓Basic grammar checker
- ✓3 summarizer requests per day
- ✓Chrome and Word extensions
Premium
$9.95/mo
- ✓Unlimited paraphrasing length
- ✓All 7 writing modes
- ✓Advanced grammar rewrites
- ✓Unlimited summarizer
- ✓Plagiarism checker (20 pages/mo)
- ✓Citation generator
- ✓AI content detector
- ✓Tone adjustments
Pay with crypto using your Coda One Card
Who is Quillbot for?
Rewriting academic papers for clarity and style
Grammar and tone checking for professional emails
Summarizing research papers and long articles
Generating properly formatted citations for papers
Checking papers for plagiarism before submission
User Reviews
Share your experience with Quillbot
Sign in to write a review
Log InYour rating
0/2000
Frequently Asked Questions
Is Quillbot free?
Quillbot offers a free tier with limited features. Free basic paraphrasing; Premium at $9.95/mo unlocks all features Paid plans unlock additional capabilities.
What are Quillbot's key features?
Quillbot's standout features include AI paraphrasing with 7 distinct writing modes, Grammar checker with advanced rewrite suggestions, Text summarizer in bullet point and paragraph formats, Citation generator supporting APA, MLA, Chicago formats. It offers 8 features in total designed for rewriting academic papers for clarity and style.
Can I pay for Quillbot with cryptocurrency?
Quillbot does not currently accept cryptocurrency directly. However, you can use the Coda One Card to pay for Quillbot with USDT, USDC, or other crypto through a virtual Visa card.
What are the best alternatives to Quillbot?
Popular alternatives to Quillbot include Consensus, DeepL, Duolingo. Each offers different strengths in pricing, features, and specialization.
Related Tools
Consensus
Freemium
AI-powered academic search that synthesizes findings from peer-reviewed papers
- Natural language search across 200M+ academic papers
- AI-synthesized answers with inline citations
- Consensus Meter showing research agreement levels
- Copilot for deep multi-study analysis
- Study snapshots highlighting methodology and key findings
DeepL
Freemium
AI translation service regarded as the most accurate for European languages
- Neural machine translation across 30+ languages
- Document translation preserving original formatting
- DeepL Write for style, tone, and grammar improvement
- Custom glossaries for consistent terminology
- Website translation
Duolingo
Freemium
World's most popular AI-powered language learning app with 40+ languages
- Adaptive AI lessons across 40+ languages
- Roleplay conversations with AI characters (Max)
- Explain My Answer detailed AI feedback (Max)
- Video Call speaking practice with AI (Max)
- Gamification with streaks, XP, and leaderboards
Khan Academy (Khanmigo)
Freemium
Free education platform with GPT-4 powered AI tutor for personalized learning
- GPT-4 powered AI tutor using Socratic questioning method
- Thousands of free video lessons across all major subjects
- Interactive practice exercises with instant feedback
- Mastery-based progress tracking system
- AI writing coach that guides without giving answers
Disclosure: Some links on this page may be affiliate links. We may earn a commission if you make a purchase through these links, at no additional cost to you. This helps support Coda One.