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AI paraphrasing and writing improvement platform offering unlimited rewriting, grammar checking, and plagiarism detection for students and writers at $8.33/month annually.
QuillBot's proprietary paraphrasing models (2 modes); basic grammar models.
125 words per paraphrase; 2 modes; 1,200-word summarizer; no plagiarism checker.
Content Creation
7.5Unlimited paraphrasing on Premium enables high-volume content rewriting; 9 modes support formal, creative, academic, and simplified rewrites; 25,000 words/month plagiarism checking supports content originality verification.
Education
8.5QuillBot is the most widely used paraphrasing tool among students; the $6.25/month student plan is the most affordable premium writing assistant in the category; plagiarism checking and academic mode support essay and paper workflows.
Personal Productivity
7.0Chrome extension enables paraphrasing in Google Docs and web forms without switching tools; co-writer assists with extending and improving existing text but does not generate content from scratch.
QuillBot is an AI writing platform specialising in paraphrasing, summarising, grammar checking, and plagiarism detection. Its core product is the paraphraser, which offers 9 rewriting modes (Standard, Fluency, Academic, Simple, Creative, Formal, Expand, Shorten, and Custom on Premium) with unlimited word processing on paid plans. The free tier is limited to 125 words per paraphrase. Premium at $8.33/month (annual) provides unlimited paraphrasing, all 9 modes, 25,000 words/month of plagiarism checking, grammar checking, and a co-writer. The Teams plan starts at $7.50/user/month for 2–10 seats with centralized billing. A student discount tier is available at $6.25/month (annual, .edu verification required). QuillBot's primary limitation is that it refines existing text — it does not generate new long-form content from prompts, making it a complement to, not a replacement for, generative AI writing tools.
Pricing
| Plan | Model | Usage Limits | Price |
|---|---|---|---|
| FreeFREE | QuillBot's proprietary paraphrasing models (2 modes); basic grammar models. | 125 words per paraphrase; 2 modes; 1,200-word summarizer; no plagiarism checker. | Free |
| Premium | Full QuillBot model suite (9 paraphrasing modes including Custom); enhanced grammar and plagiarism detection models. | Unlimited paraphrasing; all 9 modes including Custom; 25,000 words/month plagiarism checking; unlimited grammar checker; co-writer access; faster processing speed; 3-day refund guarantee. | $8.33/mo annual |
| Teams | Same as Premium with organizational management features. | Same Premium features per user; centralized billing; shared style guides; admin controls. | $7.50/user/mo annual, 2–10 seats |
QuillBot's proprietary paraphrasing models (2 modes); basic grammar models.
125 words per paraphrase; 2 modes; 1,200-word summarizer; no plagiarism checker.
Student plan at $6.25/month (annual) is the lowest-cost paid writing assistant in the category; academic paraphrasing mode and plagiarism checking are directly relevant for essay and thesis workflows; free tier covers basic needs for occasional use.
Premium at $8.33/month (annual) provides unlimited paraphrasing for content repurposing and rewriting workflows; notably cheaper than Grammarly Pro ($12/month) for users whose primary need is paraphrasing rather than real-time editing.
At $99.95/year, QuillBot is one of the most affordable premium writing tools available; particularly valuable for freelancers in non-English-speaking countries using QuillBot to ensure professional-quality English output.
Teams plan at $7.50/user/month is priced below Grammarly Pro for small teams needing shared paraphrasing and plagiarism detection; lacks the real-time browser integration and tone detection of Grammarly.
Consider These Instead
Choose Grammarly Pro ($12/month annual) if real-time writing assistance embedded across all writing surfaces — email, Slack, documents, web — is more important than a standalone paraphrasing tool; Grammarly covers more of the writing workflow. Choose ChatGPT Plus ($20/month) if generating new content from prompts is required alongside paraphrasing — ChatGPT handles both generation and rewrites, though it lacks QuillBot's specialised mode system.
