QuillBot

AI Writing & Content

Free Plan Available

Writing assistant for paraphrasing, grammar checks, summarizing and AI detection, available on the web, desktop and mobile.

Last reviewed 11/1/2026

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Overview

QuillBot offers a set of writing tools centered on paraphrasing, with grammar checking, summarization, translation, citations and AI detection alongside. It is aimed at students, academics and everyday writers, with a free tier and a low-cost Premium plan that lifts word limits.

Best For

Students and writers rewording, proofreading and summarizing text

Key Features

Paraphraser with multiple and custom modes
Grammar checker with tone insights
Summarizer for long texts
AI detector and humanizer
Plagiarism checker (Premium)
Citation generator and translation in 40+ languages

Pricing

Not verified – see official pricing Official pricing

Free plan: Available

Pros & Cons

Pros

Usable free plan with no credit card
Low Premium price with a 3-day money-back guarantee
Extensions and apps for browsers, Word and mobile keyboards

Cons

Free paraphrasing is capped at 125 words
Plagiarism checks limited to 25,000 words/month on Premium
Team plan pricing is not published

Alternatives

Grammarly