QuillBot
AI writing tools for paraphrasing, grammar, summarising and checking text.
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About QuillBot
QuillBot is a set of AI writing tools. The Paraphraser rewrites text in a choice of modes, from standard and fluency to academic and simple, and Premium adds custom modes and support for many languages. The Grammar Checker fixes errors and suggests clearer wording, the Summarizer shortens long text, the Citation Generator builds references and Translate converts text between more than forty languages.
Other tools check text before it is submitted or published. The AI Detector looks for text written by AI, the AI Humanizer rewrites text to read more naturally, and the Plagiarism Checker helps avoid accidental copying. There is also an AI chat and an AI image generator, a projects area, a Chrome extension and other apps.
The free plan limits how much text each tool handles, for example paraphrasing up to a set number of words at once. Premium removes most of those limits and unlocks advanced grammar suggestions and full access to the detector and humaniser. A team plan adds usage metrics, user management and central billing. QuillBot is aimed at students, professionals and content creators.
Our take
- Good for
- paraphrasing, grammar checking and summarising text.
- Skip it if
- you need long rewrites on the free plan.
- The catch
- the free paraphraser limits text length and modes, the plagiarism checker is Premium only, and its AI detector's accuracy varies by test, so never rely on it alone for academic or career decisions.
Checked . Plans and limits change, so confirm them on the vendor's site before you buy.