AI writing assistant: paraphrase in 9+ modes, check grammar, detect AI text.
Chrome Web Store listing
Overview
What is QuillBot?
Write faster. Say it better. Keep your voice intact.
QuillBot is an AI writing assistant focused on paraphrasing, grammar, and clarity — from QuillBot (Course Hero), LLC.
The Paraphraser rewrites text in 9+ modes (Standard, Fluency, Formal, Academic, Creative, and more) while keeping your voice. The Grammar Checker fixes grammar, spelling, and punctuation with tone and clarity insights. The AI Detector and AI Humanizer help you check and naturalize AI-generated text. The Summarizer condenses long text, the Translator handles multilingual writing (English, Spanish, French, German, Portuguese, Dutch), the Plagiarism Checker scans originality (up to 25,000 words/month on Premium), and the Citation Generator builds citations. Co-Writer combines the tools in one workspace. Works where you write via Chrome extension, Word, and Google Docs add-ons.
QuillBot is freemium: Free ($0) includes 125-word paraphrasing in 2 modes, basic grammar checks, and limited summarizer. Premium is $19.95/month billed monthly, ~$13.31/month billed quarterly ($39.95/3 months), or ~$8.33/month billed annually ($99.95/year) — with unlimited paraphrasing, all 9+ modes, plagiarism checker, expanded tools. Team plans scale per seat. No free Premium trial; occasional 3-day money-back guarantee on paid plans. Prices confirmed via recent reviews (Aug–Sep 2026); check quillbot.com for current quotes as promos vary.
Platforms and languages
QuillBot Availability
Platforms
Languages
Capabilities
QuillBot Key Features
Paraphraser
Rewrite text in 9+ modes (Standard, Fluency, Formal, Academic, Creative) while keeping your voice.
Grammar checker
Fix grammar, spelling, and punctuation with tone and clarity insights.
AI detector
Check text for AI-generated content.
AI humanizer
Make AI-generated text sound more natural.
Summarizer & plagiarism
Condense long text; plagiarism checking up to 25,000 words/month on Premium.
Integrations
Chrome extension plus Word and Google Docs add-ons — write where you already work.
Best for
Who uses QuillBot?
Students and academics
Paraphrase, cite, and check originality for essays and papers
Professionals and marketers
Polish emails, reports, and content with tone-aware rewrites
Plans and access
QuillBot Pricing
Freemium
Free plan; Premium from ~$8.33/mo (annual) to $19.95/mo.
Common questions
QuillBot FAQs
Is QuillBot free?
Yes — Free is permanently free: 125-word paraphrasing in 2 modes, basic grammar checks, summarizer up to 1,200 words. No credit card required.
Is there a free trial of Premium?
No traditional free trial — the Free plan serves as the trial. Paid plans occasionally carry a 3-day money-back guarantee.
What does Premium cost?
Premium Monthly $19.95/month, Quarterly ~$13.31/month ($39.95/3 months), Annual ~$8.33/month ($99.95/year). Regional prices and promos vary.
Free vs Premium?
Free gives 2 modes (Standard, Fluency) and a 125-word cap; Premium unlocks unlimited words, 9+ modes (Formal, Academic, Creative, Custom), plagiarism checker, and tone insights.
Which languages are supported?
Yes — English, Spanish, French, German, Portuguese, and Dutch for writing and editing.
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