What it is
QuillBot started as a paraphrasing tool and now offers a set of writing tools: a paraphraser, grammar checker, summarizer, translator, citation generator, AI chat, AI detector, plagiarism checker and humanizer, plus PDF and image tools. It runs on the web, as Chrome, Edge and Safari extensions, as a Word add-in and in apps for macOS, Windows, iOS and Android. It is a business of Learneo, which also owns Course Hero.
It suits students and writers who want to rephrase text quickly. Signing up is free, and the free tier limits how much text you can paraphrase at once and which modes you can use; Premium removes those limits. Check your school or publisher's rules before submitting paraphrased or humanized text.
Best for
- Rewording sentences and paragraphs in different styles
- Students summarizing readings and formatting citations
- Checking text with a grammar checker and AI detector