QuillBot

AI writing assistant for paraphrasing, grammar checking, and rewriting text.

Data verified Oct 17, 2026

Pundit
Score

Price: $19.95/mo
Try it free: Free plan
Best for: Students

Editorial Verdict

AI-researched, not hands-on tested

QuillBot is a writing suite from Learneo covering a paraphraser, grammar checker, summarizer, AI detector, humanizer and plagiarism checker. It suits students and everyday writers who want one set of rewriting and proofreading tools. The free plan caps paraphrasing at 100 words and 2 modes, and the pricing page notes that usage limits apply. For an open-source option, look at LanguageTool or Harper for grammar and style checking. This is based on vendor pages, not hands-on testing.

Reviewed by AIToolPundit Editorial Team · last verified October 2026

About QuillBot

QuillBot is an AI-powered writing assistant that paraphrases, checks grammar, summarizes, and rewrites text to improve clarity, tone, and correctness. It's built mainly for students, academics, and professionals who write frequently, and its standout feature is a flexible paraphraser with multiple modes and a synonym slider that lets users control how much of their text gets reworded. Owned by Learneo, it works across the web, browser extensions, and Microsoft Word.

Commonly Cited Strengths & Limitations

Strengths

Premium offers 9 built-in paraphrasing modes plus unlimited custom modes, in 23 languages
Premium includes grammar correction in 6 languages and translation into 40+ languages
The page lists browser extensions, a Word add-in, desktop apps and iOS and Android keyboards
The plans cover a plagiarism checker, AI detector, humanizer and summarizer

Limitations

Free plan caps the paraphraser at 125 words at a time
Free summarizer maxes out at 1,200 words
Free plan offers only two paraphrasing modes (Standard and Fluency)

Common Use Cases

Paraphrasing and rephrasing sentences
Checking and fixing grammar
Summarizing long passages
Checking writing for plagiarism
Generating citations for research papers
Collaborative writing and editing for teams

Details

Pricing Model: Freemium
Starting Price: $19.95/mo
Founded: 2017
Team Size: Teams plan: 2–10 seats, with discounts for 11+ seats
Headquarters: Chicago, Illinois, USA
Category: AI Writing & Content

Who is QuillBot for?

Students

The paraphraser, summarizer, citation generator and plagiarism checker sit in one subscription.

Content writers

Premium offers multiple paraphrasing modes, tone insights and Chrome, Edge and Word integrations.

Teams

The Team Plan adds usage metrics, user management and centralized billing.

Frequently Asked Questions

Is QuillBot free?

QuillBot offers a free plan, with paid plans starting at $19.95/mo.

Does QuillBot have an API?

QuillBot does not currently offer a public API.

What does QuillBot integrate with?

QuillBot integrates with Chrome extension, Microsoft Word.

Is QuillBot cloud-based or self-hosted?

QuillBot is offered as a cloud-based (SaaS) deployment.

What are the downsides of QuillBot?

Free plan caps the paraphraser at 125 words at a time Also, Free summarizer maxes out at 1,200 words

Who is QuillBot best for?

QuillBot is best suited for Students, Content writers, Teams.

What can I use QuillBot for?

Common uses for QuillBot include paraphrasing and rephrasing sentences, checking and fixing grammar, summarizing long passages, checking writing for plagiarism.

What is the best alternative to QuillBot?

Our reviewed alternatives to QuillBot are Grammarly, Wordtune, Scribbr, ProWritingAid, LanguageTool and Harper. Open-source options: LanguageTool, Harper.

How does QuillBot compare to MixTranslate?

QuillBot and MixTranslate are both used for ai writing & content -- specifically writing tools. See the full side-by-side comparison for pricing and feature differences.

QuillBot alternatives we reviewed

Reviewed when this listing was published; open-source options are marked.

See all reviewed alternatives →

Grammarly
AI writing assistant with a stronger focus on grammar, tone, and full-document editing.
Visit site →
Wordtune
AI rewriting tool that rephrases sentences and adjusts tone.
Visit site →
Scribbr
Academic-focused paraphrasing, plagiarism checking, and citation tools (also owned by Learneo).
Visit site →
ProWritingAid
Writing editor combining grammar checking with in-depth style reports.
Visit site →
LanguageTool
Open source
Style and grammar checker for 25+ languages.
Cost:
Free / self-host
Licence:
Open source
Visit site →GitHub
Harper
Open source
Offline, privacy-first grammar checker written in Rust.
Cost:
Free / self-host
Licence:
Open source
Visit site →GitHub