QuillBot vs Grammarly

Choosing QuillBot or Grammarly? Compare writing quality, plagiarism risk and value in 2026.

	QuillBot Best for: AI paraphrasing, summarizing, and grammar checking for students and writers	Grammarly Best for: AI writing assistant for grammar, style, tone, and clarity improvements
Overview	AI writing tool with 35M monthly active users specializing in paraphrasing, summarizing, and grammar checking. Includes an AI Humanizer. Free 125 words; Premium $8.33/mo annual.	The leading AI writing assistant with 40M daily active users. Checks grammar, style, tone, and clarity across all apps via browser extension. Free 100 prompts/mo; Pro $12/mo annual.
Pricing	Freemium	Freemium
Users	50M+	40M+
Advantages	✅35M MAU — most widely used paraphrasing tool globally ✅Multiple paraphrase modes (Formal, Academic, Creative, Concise) for different contexts ✅AI Humanizer reduces detectability of AI-generated content ✅Citation generator supports MLA, APA, and Chicago formats ✅Premium at $8.33/mo annual is very affordable for students	✅40M daily active users — most widely adopted writing assistant ✅Works across all apps via browser extension — no workflow change required ✅Tone detector identifies how messages read before sending ✅Free tier provides real grammar and style correction — genuinely useful without paying ✅Microsoft Office and Google Docs integrations for native document editing
Disadvantages	❌Free tier limited to 125-word paraphrasing — major restriction for real use ❌Paraphrasing tool raises academic integrity concerns in educational settings ❌AI Humanizer detection evasion not guaranteed as detection tools improve ❌Focused on transforming existing text — not suitable for original content creation	❌Pro monthly rate ($30/mo) expensive — annual commitment required for $12/mo ❌Business tier removed — teams now require Enterprise pricing (contact sales) ❌Context-unaware corrections sometimes flag intentional stylistic choices as errors ❌Generative AI features less sophisticated than purpose-built writing tools
Rating	…	…
Website	quillbot.com	grammarly.com
	Visit →Full review	Visit →Full review

Verdict: Which Should You Choose?

Choose QuillBot if…

✅ You need to paraphrase, rewrite, or rephrase text in different tones and styles
✅ You're a student or writer who needs to express ideas in new ways without plagiarism
✅ You want AI summarization — condense long articles or documents into key points
✅ You want a translator and grammar checker bundled with paraphrasing at a lower price

Choose Grammarly if…

✅ You want real-time grammar, spelling, and punctuation corrections as you type anywhere
✅ You need a browser extension that works across Gmail, Google Docs, Slack, and every web form
✅ You want AI-powered tone suggestions, clarity improvements, and full sentence rewrites
✅ You need plagiarism detection for academic or professional writing

Frequently Asked Questions

What is the difference between QuillBot and Grammarly?

QuillBot specializes in paraphrasing and rewriting — transforming existing text into new forms. Grammarly specializes in grammar checking and real-time writing suggestions. QuillBot is better for rephrasing; Grammarly is better for correctness and style improvement.

Is QuillBot free?

QuillBot has a free plan with 125 words per paraphrase and limited modes. QuillBot Premium is $4.17/month (annual) or $9.95/month for unlimited paraphrasing, all modes, faster processing, and summarization.

Can QuillBot fix grammar?

Yes. QuillBot includes a grammar checker as part of its suite. However, Grammarly's grammar checking is more comprehensive and its browser extension works everywhere. QuillBot's grammar tool is secondary to its paraphrasing core feature.

Does Grammarly paraphrase?

Grammarly has a rewrite feature that can rephrase sentences for clarity or tone. However, it's less flexible than QuillBot's dedicated paraphrasing modes (Academic, Formal, Creative, etc.). For systematic paraphrasing of paragraphs, QuillBot is the more specialized tool.