QuillBot
Visit QuillBot →About QuillBot
QuillBot is a specialized AI writing tool with 35 million monthly active users, built around paraphrasing, summarizing, grammar checking, and citation generation. Unlike general-purpose AI writers, QuillBot focuses on improving and transforming existing text rather than generating from scratch — making it particularly popular among students and non-native English writers.
The core paraphrasing tool offers multiple modes (Standard, Fluency, Formal, Academic, Creative, Concise, and Expand) that transform text in different ways while preserving meaning. The AI Summarizer condenses long documents into key points. The Grammar Checker catches errors and suggests rewrites. In 2024, QuillBot added an AI Humanizer feature that attempts to make AI-generated text less detectable by AI detection tools.
Key capabilities include multi-mode paraphraser, document summarizer, grammar checker, citation generator (MLA, APA, Chicago), plagiarism checker, translator, AI Humanizer, and integrations with Microsoft Word, Google Docs, and Chrome.
Pricing: Free plan provides paraphrasing up to 125 words at a time, summarization up to 600 words, and basic grammar checking. Premium at $8.33 per month (annual) or $19.95 per month (monthly) removes word limits, unlocks all modes, and adds the full feature set including AI Humanizer and unlimited plagiarism checks. A student discount is available.
Limitations: The 125-word limit on the free paraphrasing tool is very restrictive — it is the primary driver of upgrading to Premium. The AI Humanizer, while useful, does not guarantee detection evasion as AI detection tools continuously improve. Academic integrity concerns apply to paraphrasing tools in educational contexts.
Best suited for students, ESL writers, and content creators who need to rephrase, summarize, or check existing text — rather than generate original long-form content from scratch.
- 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
- 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
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
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