QuillBot
AI paraphrasing and grammar checker
Overview
QuillBot is widely used for paraphrasing, grammar checking, summarisation and citation generation — particularly popular with students. Free tier with limits; subscription unlocks faster modes and unlimited words.
Pricing
Pricing shown for reference only. These figures reflect RECATOOLS research as of 30 Sep 2026 and may be out of date or incomplete. This is not financial or purchasing advice — always confirm the current price on the provider’s official website before making any decision.
- 125-word paraphrase limit
- 2 paraphrase modes
- 1,200-word summarizer
- No plagiarism checker
- Unlimited paraphrasing
- 9+ paraphrase modes
- 6,000-word summarizer
- 25k words/mo plagiarism check
- All Premium features
- Centralized billing
- Writer-management dashboards
Use cases
What you can produce with QuillBot
- Paraphrase a passage in several registers and pick one
- Check grammar, summarise a document and generate citations in the same place
- Paraphrase in 23 languages and translate into more than 40
- Use the free tier, which is genuinely usable within its word limits
- Subscribe for unlimited words and the faster modes
- Watch the renewal closely — billing is the most consistent negative thread in its reviews, with annual renewals rising and refunds refused
- Check your institution's policy before using it on assessed work
QuillBot remains the paraphrasing tool most people mean when they say "just run it through QuillBot" — nine-plus rewrite modes, a grammar checker, a 6,000-word summarizer, and, more recently, an AI detector and humanizer bolted on. The free tier caps paraphrasing at 125 words per go, enough to sample but not to work with; Premium runs $19.95/month, $79.95 for six months, or $8.33/month billed annually at $99.95/year. The academic-integrity grey zone hasn't gone away — a paraphraser aimed partly at students always draws that scrutiny — and Trustpilot carries a steady stream of billing complaints: failed cancellations, annual renewals at higher prices, and refund requests QuillBot says its policy covers only for fresh purchases. Accuracy figures for its AI detector come from rival detector makers and humanizer sellers, not neutral testing. None of that dents its popularity with non-native English writers across ASEAN classrooms and offices.
What people say
Annual renewals that jump from about 60 to 99.95 in euros or pounds, followed by refused refunds — that's the most consistent thread in QuillBot's one-star Trustpilot reviews in 2026, with the company replying that its refund policy applies only to fresh purchases. That's a real blemish on a tool most people otherwise like, though one-star reviews are a small share of its large Trustpilot record.
On the product itself, reviews are genuinely warm. QuillBot's paraphraser — now with nine-plus modes from Formal to Creative — plus its grammar checker, 6,000-word summarizer, and citation generator get consistent praise for speed and ease of use, especially from non-native English writers and students who make up a large share of its user base across ASEAN. The free plan (125 words per paraphrase, two modes) is genuinely usable as a sampler, not just a paywall teaser.
The newer AI detector and humanizer are more mixed. The accuracy figures in circulation come from a rival detector maker and a humanizer seller rather than neutral testers, so treat any single number with caution — and don't lean on it for anything high-stakes like an academic-integrity case. Paraphrasing tools in general still sit in a grey zone for students, regardless of QuillBot's own disclaimers.
Pricing is straightforward once you find it: $19.95 a month, $79.95 for six months, or $99.95 a year ($8.33 a month), though QuillBot tests other price points on some visitors. For casual rewriting and grammar cleanup it remains one of the more approachable AI writing tools around — just read the cancellation terms before subscribing.
QuillBot is owned by Learneo, the parent of Course Hero, whose founder Andrew Grauer is now QuillBot's chief executive; it began as Anil Jason's tool for English-language learners before going viral on Reddit. It paraphrases in 23 languages and translates into more than 40. Teams pay $7.50 a seat a month, billed annually, for two to ten seats.
Summary of public user & expert reviews, compiled by RECATOOLS.
Notable facts
- QuillBot was acquired by Course Hero in 2021 for a reported $4.5 billion, making it one of the highest-value ed-tech acquisitions in history.
- The tool's paraphrasing engine can rewrite the same sentence in over 7 different styles while preserving the original meaning.
- QuillBot processes over 10 billion words per month — more than most major publishing houses produce in a year.
Frequently asked questions
About this listing
This entry was compiled from publicly available data including QuillBot's official website, press releases, documentation, and reputable third-party publications. RECATOOLS is not affiliated with QuillBot unless explicitly stated.
Third-party AI tools update their pricing, features, availability, and policies frequently. Information here may be outdated by the time you read this — we make reasonable efforts to keep listings current, but cannot guarantee absolute accuracy.
For the latest details, please refer to QuillBot directly →
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