QuillBot: Paraphrasing & Grammar Tool for Better Writing
Use QuillBot to paraphrase, check grammar, summarize, and cite sources. Complete guide to modes, features, pricing, and integration tips.
Best AI Tools 2026
February 22, 2026
QuillBot is an AI writing assistant focused on helping you improve existing text rather than generating new content from scratch. Its core strength is paraphrasing — rewriting your sentences while preserving meaning but improving clarity, flow, or tone. Combined with a grammar checker, summarizer, and citation generator, QuillBot has become an essential tool for students, academics, and professionals who write regularly.
The Paraphraser
QuillBot's paraphraser is the tool that made it famous. Paste any text and it rewrites it in seconds. What makes it powerful is the variety of modes: Standard for balanced rewrites, Fluency for natural-sounding text with minimal changes, Formal for professional and academic tone, Simple for easier vocabulary and shorter sentences, Creative for significant rewording with more variety, Expand to add detail and length, and Shorten to condense text. The Synonym Slider lets you control how aggressively words are replaced, from subtle adjustments to complete rewrites. You can click on any word in the output to see alternative synonyms and choose the one that fits best.
Grammar Checker
QuillBot's grammar checker goes beyond basic spell-check. It catches subject-verb agreement errors, incorrect tense usage, misplaced modifiers, punctuation mistakes, and awkward phrasing. Each suggestion includes an explanation of why the change is recommended, which helps you learn from corrections rather than blindly accepting them. The grammar checker works in real-time as you type and integrates with the paraphraser so you can fix grammar and rephrase in one workflow.
Summarizer and Citation Tools
The Summarizer condenses long articles, papers, and documents into key points. You can choose between Key Sentences mode (extracts the most important original sentences) and Paragraph mode (generates a new condensed summary). This is invaluable for research, literature reviews, and quickly understanding lengthy documents. The Citation Generator supports APA, MLA, Chicago, and other citation styles. Enter a URL, DOI, book title, or ISBN and QuillBot generates a properly formatted citation. It also creates full bibliographies and in-text citations.
Integration Options
QuillBot integrates where you write. The Chrome extension brings paraphrasing and grammar checking to Gmail, Google Docs, LinkedIn, and any text field in your browser. The Microsoft Word add-in works directly in your documents. The macOS app provides system-wide access. These integrations mean you do not need to copy-paste text back and forth. Highlight any text, right-click, and QuillBot options appear in context. For Google Docs users, the integration is seamless — paraphrase and grammar check without leaving your document.
Who Benefits Most
Students use QuillBot to improve essay writing, paraphrase sources to avoid plagiarism, and generate citations. Academics rely on it for polishing research papers and converting complex writing into clearer prose. Non-native English speakers find the Fluency mode particularly helpful for making their writing sound natural. Content creators use it to repurpose existing articles for different platforms by changing tone and structure. Professionals use the Formal mode to polish business communications.
Pricing
The free plan includes the paraphraser with Standard and Fluency modes, limited to 125 words per paraphrase. The grammar checker, summarizer (1,200 words), and basic citation generator are also free. QuillBot Premium at $9.95/month unlocks all seven paraphrasing modes, unlimited word counts, advanced grammar rewrites, 6,000-word summarizer, plagiarism checker, and priority processing. Annual billing drops the price to $4.17/month.
Getting Started
Visit quillbot.com and paste a paragraph into the paraphraser to see instant results. Install the Chrome extension or Word add-in to integrate QuillBot into your existing writing workflow. Start with the Fluency mode for gentle improvements and experiment with other modes as you get comfortable. The free tier is generous enough for most casual users; Premium is worth it for heavy writers and students.
Frequently Asked Questions
QuillBot is a writing tool that helps you rephrase text in your own voice. Using it to paraphrase your own writing or properly cited sources is legitimate. However, paraphrasing someone else's work and presenting it as entirely original without citation would still be plagiarism, regardless of the tool used.
The free plan allows paraphrasing up to 125 words at a time with Standard and Fluency modes. QuillBot Premium removes the word limit and unlocks all seven modes including Formal, Simple, Creative, Expand, and Shorten.
Yes, QuillBot has a Chrome extension that integrates directly with Google Docs. You can paraphrase, check grammar, and access all QuillBot features without leaving your document. There is also a Microsoft Word add-in for desktop users.