Description
QuillBot is an AI writing companion built around paraphrasing and editing existing text rather than generating new copy from scratch. Its Paraphraser rewrites text across multiple modes, and it’s paired with a Grammar Checker, Summarizer, Plagiarism Checker, Citation Generator, AI Detector, Translator, and AI Humanizer inside one platform. Used by more than 35 million writers, QuillBot suits students, editors, and writers who already have a draft and want to refine tone, clarity, or originality rather than create content outright. Integrations with Microsoft Word, Google Docs, and Chrome bring the same tools directly into a user’s existing writing workflow, and a desktop app is available for macOS.
Key Features
- Paraphraser — rewrites text across multiple modes, including Standard, Fluency, and more creative options on paid plans.
- Grammar Checker — flags and corrects grammar, spelling, and punctuation errors.
- Plagiarism Checker — cross-references text against published sources, unavailable on the Free plan.
- AI Detector — checks whether a piece of text may have been AI-generated.
- AI Humanizer — rewrites AI-generated text to read more naturally.
- Citation Generator — creates APA, MLA, and Chicago style citations automatically.
How It Works
A user pastes existing text into the Paraphraser and selects a mode, such as Standard or Fluency on Free, or more advanced creative and formal modes on Premium, and QuillBot rewrites the passage while preserving its original meaning. The Free plan caps the Paraphraser at 125 words per pass and the Summarizer at 1,200 words, with only two paraphrasing modes and no plagiarism checking, while Premium removes those caps and unlocks the full toolset. The same account carries across QuillBot’s other tools, so a user can run a Grammar Checker pass, generate citations, or check for AI-generated content without leaving the platform. Word, Google Docs, and Chrome integrations bring the Paraphraser and Grammar Checker into a user’s existing documents rather than requiring a copy-paste workflow.
Technical Architecture & Overview
- Core Engine: QuillBot’s own proprietary paraphrasing and language models.
- Deployment: Web app, Microsoft Word add-in, Google Docs add-on, Chrome extension, and a macOS desktop app.
- API Surface: No general consumer-facing developer API confirmed on the official site.
- Known Limits: The Free plan caps the Paraphraser at 125 words per pass and excludes the Plagiarism Checker entirely.
Pros & Cons
| Pros | Cons |
|---|---|
| Bundles paraphrasing, grammar checking, plagiarism checking, citations, and AI detection in one subscription. | The Free plan caps the Paraphraser at just 125 words per pass. |
| Word, Google Docs, and Chrome integrations fit directly into an existing writing workflow. | No plagiarism checker at all on the Free plan. |
| The Team plan brings per-seat pricing down for small groups sharing an account. | Built for editing and rewriting existing text rather than generating new content from scratch. |
| An AI Humanizer helps smooth over text that reads as obviously AI-generated. | Annual billing is required to reach QuillBot’s lowest advertised monthly price. |
| A 3-day money-back guarantee applies to new Premium purchases. | No public developer API for teams wanting to integrate QuillBot programmatically. |
Pricing
| Plan | Price |
|---|---|
| Free | $0/month (125-word Paraphraser limit, no plagiarism checker) |
| Premium | $19.95/month billed monthly ($8.33/month billed annually) |
| Team | $7.50/user/month (2-10 seats) |
Platform Availability
Web | Word | Google Docs | Chrome | macOS
Best For
Students and academics needing paraphrasing and citations | Editors refining existing drafts for tone and clarity | Writers wanting a plagiarism and AI-detection check before submitting work
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Also worth comparing: Rytr, a budget AI writing assistant covering 40-plus use cases | HyperWrite, an AI writing assistant with a browser-automating personal assistant | Jasper, an enterprise AI content platform built around Brand Voice | Copy.ai, a GTM AI platform with chat-based copywriting and workflow automation
Visit Official Website
Frequently Asked Questions
Does QuillBot have a free plan?
Yes. QuillBot’s Free plan gives limited access to the Paraphraser and Summarizer, capped at 125 words and 1,200 words respectively, with no plagiarism checker, according to QuillBot’s official site.
How much does QuillBot cost?
Premium runs $19.95/month billed monthly or $8.33/month billed annually ($99.95/year), and Team runs $7.50/user/month for 2-10 seats, according to QuillBot’s official pricing page.
What’s the difference between QuillBot Free and Premium?
Premium removes the word caps on the Paraphraser and Summarizer, unlocks all paraphrasing modes, and adds the Plagiarism Checker, according to QuillBot’s official site.
Does QuillBot detect AI-generated text?
Yes. QuillBot’s AI Detector checks whether a piece of text may have been AI-generated, and its separate AI Humanizer can rewrite AI text to read more naturally, according to QuillBot’s official site.
Does QuillBot work inside Microsoft Word and Google Docs?
Yes. QuillBot offers a Word add-in and a Google Docs add-on alongside its Chrome extension and macOS desktop app, according to QuillBot’s official site.
