Quillbot

QuillBot is a writing assistant built around a paraphrasing tool. Paste text and it rewrites the passage while keeping the meaning, with a synonym slider to control how far the wording moves from the original. Around the paraphraser sit a grammar checker, summarizer, translator, citation generator, plagiarism checker and an AI detector, plus a Humanize mode for reworking machine generated text. It is used by students, academics and professionals who edit in English and more than 20 other languages. The paraphraser offers more than ten modes including Standard, Fluency, Formal, Simple, Creative, Academic, Expand, Shorten, Humanize and Custom, several of which are Premium only. QuillBot runs in the browser and as a Chrome extension that works inside other apps and websites, so rewrites and grammar checks happen where the writing already is. The Free plan gives full access to the Citation Generator, AI Detector and Translator and limited access to the paraphraser and grammar checker. Premium unlocks unlimited use of all writing tools and costs $19.95 per month on monthly billing, $39.95 billed every three months, or $99.95 billed annually, which works out to $8.33 a month. Premium can be paused and resumed, and a three day money back guarantee applies. A Team plan covers multiple users under one purchase, and a student discount is offered.