QuillBot
by QuillBot
Paraphraser, grammar checker, AI detector and humanizer in one writing toolkit
PricingFreemium
Starts at$9.95/month, billed annually (Premium)
Free tierYes
Platformsweb, browser-extension
Models used—
Best for
Students and everyday writers who want to reword, fix grammar and check text in one place.
Overview
QuillBot is a writing toolkit built around its paraphraser, with a grammar checker, plagiarism checker, AI detector, AI humanizer and summarizer alongside it. The free plan handles short texts; Premium at $9.95/month billed annually removes the limits, and a Team plan adds admin and billing controls.
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Strengths and limits
- Many tools in one subscription: paraphraser, grammar checker, plagiarism checker, AI detector, AI humanizer and summarizer
- 10+ paraphrasing modes on Premium, from Academic to Simple
- Usable free plan for short texts
- Free plan caps paraphrasing and humanizing at 100 words
- Plagiarism checker and full AI Detector are Premium-only
What the free plan includes
Paraphrase up to 100 words in 2 modes, basic grammar fixes, humanize up to 100 words (limited usage), basic summaries and limited AI Detector access.