AI paraphrasing tool with grammar checker, summariser, and citation generator
QuillBot is an AI-powered writing platform combining a paraphrasing tool, grammar checker, summariser, plagiarism checker, citation generator, and translator in a unified suite. Its paraphraser offers multiple modes — Standard, Fluency, Formal, Simple, Creative, Expand, Shorten — making it the most used AI text rewriting tool for students, academics, and content creators who want to rewrite content without starting from scratch.
QuillBot is a strong fit if its core strengths match your workflow, budget, and support needs. Use the quick signals below before opening the full review.
QuillBot's market position is unique: it is not primarily a grammar checker but a text transformation platform — and its paraphraser is the most used AI rewriting tool for students and content creators worldwide. The grammar checker, summariser, and citation generator have grown around this paraphrasing core to form a complete writing suite.
QuillBot's paraphraser offers eight modes that produce genuinely different rewriting outputs. Standard mode makes moderate vocabulary and structure changes. Fluency mode prioritises natural-sounding text. Formal mode increases professional register. Simple mode reduces complexity for broader audiences. Creative mode introduces more radical restructuring. Expand adds contextual detail and elaboration. Shorten condenses text to core meaning. Custom mode allows setting the aggressiveness of the rewrite manually.
For students who need to integrate source material into an essay without direct quotation, content marketers adapting the same content for different platforms, and writers who produce repetitive text in long documents, these modes provide practical, immediate value.
QuillBot's grammar checker handles standard grammatical corrections — subject-verb agreement, tense consistency, article usage, comma placement — with good accuracy. It integrates with Chrome as a browser extension and with Microsoft Word and Google Docs via add-ins. It is less powerful than Grammarly for stylistic suggestions and tone analysis, but covers the correctness baseline adequately for most writing needs.
The citation generator accepts a URL, DOI, ISBN, or article title and automatically generates formatted citations in APA 7th edition, MLA 9th edition, Chicago, or Harvard style. For students managing multiple sources across a research paper, this eliminates the manual formatting that consumes hours of reference management time.
Score: 8.6/10 — Best AI paraphrasing and rewriting tool; grammar checking quality below Grammarly for style-focused improvement.
Free
Free billed annually
$9.95/mo
$49.95/mo billed annually
QuillBot is best for Students and academics who need to rewrite source material in their own words, vary sentence structure, or reduce repetition in essays, Content marketers who need to adapt existing content for different audiences, platforms, or formality levels, Non-native English writers who want to improve fluency in their text through AI-assisted rewriting.
Yes. QuillBot currently lists a free plan in ToolRankr data.
It has a free plan.
QuillBot is reviewed using ToolRankr's scoring model for ease of use, value, features, support, and overall quality. Affiliate links may earn a commission, but sponsored labels do not change editorial scoring.
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