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HomeAI Writing ToolsQuillBot
Q
AI Writing

QuillBot

QuillBot is an AI paraphrasing and grammar tool with nine rewriting modes and a built-in plagiarism checker. Compared on paraphrasing capability and free-tier generosity, it offers more core functionality at no cost than any comparable writing tool.

7.3/ 10
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Verified August 2026

Starting price
£4/mo
Free tier
Yes
Best for
AI Writing
CompareMyAI score
7.3 / 10
See all AI Writing Tools →

QuillBot is an AI paraphrasing and grammar tool with nine rewriting modes and a built-in plagiarism checker. Compared on paraphrasing capability and free-tier generosity, it offers more core functionality at no cost than any comparable writing tool.

Best used for

Blog posts, marketing copy, email campaigns, product descriptions, and long-form content.

Who it's for

  • Individuals looking for fast, capable AI assistance
  • Small businesses wanting to automate repetitive work
  • Teams that need a reliable AI they can trust
Free
Free
  • Paraphrase up to 125 words
  • 2 paraphrase modes
  • Basic grammar fixes
  • 6 Humanize uses/day
  • Basic summaries
  • Limited AI Detector
Premium
£4/mo
  • Unlimited paraphrasing
  • 9 paraphrase modes + custom
  • Advanced grammar
  • Full Humanize access
  • Custom summaries (6,000 words)
  • 25,000-word plagiarism checker
  • Tone insights

Prices in GBP. Verified monthly. Always check the provider's site for the latest.

Free tier availableYes
API accessNo
Open sourceNo
Enterprise readyNo
GDPR compliantNo
SOC 2 certifiedNo
ISO 27001No
MFA supportedNo
Trains on your dataNo

Pros

  • +Free tier paraphrases up to 125 words with no time limit
  • +9 paraphrase modes including Formal, Simple, Creative, and Expand
  • +Premium at £4/mo (annual) is the lowest price in the writing category
  • +Plagiarism checker and AI Detector bundled with Premium

Cons

  • −GDPR and SOC2 not confirmed from official sources
  • −Free tier capped at 125 words per paraphrase — limiting for longer content
  • −Focused on paraphrasing — not a full-document AI writing assistant

Compare QuillBot with…

+ Compare
G
Grammarly
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J
Jasper
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C
Copy Ai
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W
Writesonic
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Quick facts
CategoryAI Writing
Free tierYes
Open sourceNo
EnterpriseNo
API accessNo
Security & compliance

No certifications on record.

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Compare alternatives

G
Grammarly
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J
Jasper
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C
Copy Ai
—
W
Writesonic
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