What is QuillBot?
QuillBot is the paraphrasing specialist: paste a clunky sentence or a dense paragraph and it rewrites it in your chosen mode — simpler, more formal, shorter, more fluent. Around that core sit a summariser, grammar checker, translator and plagiarism checker. The free tier is honestly useful but tight: 125 words per paraphrase and only two of the nine modes, which is enough for polishing sentences, not documents. Premium is $19.95 month-to-month but drops to roughly $8.33/month billed annually — one of the biggest monthly-versus-annual gaps around, so never pay the monthly rate for long. The watch-out for students: universities increasingly treat heavy paraphrasing-tool use as misconduct and AI detectors flag it, so use QuillBot to learn better phrasing, not to launder copied text past originality checks.
Best for: Rewording, simplifying and tightening existing text.
QuillBot pricing
| Plan | Price | What you actually get |
|---|---|---|
| Free | $0 | Paraphrasing with a word limit per go and two rewriting modes. Workable for short passages. |
| Premium | from $8.33/mo | Unlimited paraphrasing, all modes, and the full grammar and plagiarism toolset. Billed annually. |
Prices checked 27 July 2026. Vendors change limits often — treat the caps as indicative and confirm on the pricing page before you buy.
What QuillBot is good at
- Rephrasing a sentence you have rewritten five times and still hate
- Adjusting formality up or down for a specific audience
- Summarising long passages down to the argument
- Second-language writers checking a sentence reads naturally
Fix a sentence that will not come out right
- Paraphrase just the problem sentence, not the paragraph around it.
- Try two modes — usually Fluency and Formal — and compare.
- Take the version closest to what you meant, then edit it yourself. The output is a starting point.
- Read the paragraph aloud afterwards to check the rewrite still fits its neighbours.
Who should skip QuillBot
- Disguising someone else’s work. Paraphrasing plagiarism is still plagiarism, and detectors are getting better.
- Anyone hoping it will improve weak thinking — it rewords, it does not reason.
- Long documents on the free tier, where the word cap bites immediately.
What's good
- Nine paraphrase modes, from formal to simple
- Summariser, grammar checker and translator included
- Free tier handles sentence-level polishing
- Annual plan is genuinely cheap at about $8.33/mo
Watch-outs
- Free paraphraser caps at 125 words and two modes
- Month-to-month price is a steep $19.95
- Heavy use can cross academic-integrity lines
QuillBot FAQ
- Is QuillBot free?
- Yes, with a word limit per paraphrase and only two modes. Premium removes the cap and adds the rest.
- Is using QuillBot cheating?
- Rewording your own writing is editing. Rewording someone else’s to pass it off as yours is plagiarism, regardless of the tool. Check your institution’s policy.
- Can QuillBot beat AI detectors?
- Do not rely on it. Detection is unreliable in both directions, and building your work around evading it is a bad strategy.
The verdict
QuillBot earns a 4/5 from us. There’s a free way in, so it’s low-risk to try. Paraphrase, summarise and polish your writing.