AI writing assistant for grammar, clarity, tone and generative rewriting across apps.
QuillBot
AI Writing & CopywritingQuillBot is a writing toolkit built around its paraphraser, which rewrites text in modes such as Standard, Fluency, Formal, Academic, Simple, Creative, Expand and Shorten. It also includes a grammar checker, summarizer, AI detector, AI humanizer, plagiarism checker, citation generator, translator and AI chat. Students, researchers and non-native English writers make up much of its user base.
Pricing
QuillBot pricing
Free plan (limited paraphrasing). Premium $19.95/mo monthly or $99.95/yr (~$8.33/mo).
Last checked September 2026 · Confirm on quillbot.com
Features
What QuillBot does
- Paraphraser with multiple rewriting modes and custom modes
- Grammar checker and summarizer
- AI detector and AI humanizer
- Plagiarism checker (Premium)
- Citation generator and translator
- Extensions for Chrome, Edge, Safari and Word
Pros
- Many writing tools bundled under one subscription
- Paraphrasing supports 20+ languages
- Available on web, desktop, mobile and browser extensions
- Has a free plan with core tools
Cons
- Free plan limits paraphrasing length and modes
- Plagiarism checks are capped by monthly word count even on Premium
- Not designed for generating long-form marketing content
- No brand voice or style guide controls
Fit
Who QuillBot is for
Look elsewhere if: Marketing teams that need brand-consistent campaigns or long-form content generation will be better served by a marketing AI platform.
For teams & enterprise
Enterprise readiness
Team Plans bundle Premium seats with central billing; no training on Team Plan inputs, but SSO and SOC 2 are not published.
- Business / enterprise plan
- Yes
- SSO (SAML / OIDC)
- —
- SCIM user provisioning
- —
- SOC 2
- —
- ISO 27001
- —
- HIPAA (BAA available)
- —
- GDPR DPA
- —
- Data residency options
- —
- No training on your data
- Team plan
- Audit logs
- —
- Admin controls
- Yes
- Deployment
- Cloud
From the vendor's own security documentation (trust center). "—" = not confirmed. Verify during your security review. Compare all tools.
| Writing feature checklist | |
|---|---|
| Grammar & style checking | Yes |
| Paraphrasing / rewriting | Yes |
| Long-form drafting | No |
| Brand voice / style guide | No |
| Plagiarism checker | Paid plans only |
| AI content detection | Yes |
| Works in browser / other apps | Yes |
| Languages | 23 (paraphraser) |
| Team workspace | Yes |
QuillBot compared
- QuillBot vs Grammarly
- QuillBot vs Writesonic
- QuillBot vs Jasper
- QuillBot vs Koala AI
- QuillBot vs Rytr
- QuillBot vs ProWritingAid
- QuillBot vs Copy.ai
- QuillBot vs Hypotenuse AI
- QuillBot vs Wordtune
Buying guides
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