QuillBot
AI paraphrasing and summarizing tool for better writing
💎Freemium
🌐Web🧩Chrome
About
QuillBot is an AI-powered writing tool providing a paraphraser, summarizer, grammar checker, and citation generator. It helps students improve their writing by rephrasing text for clarity, conciseness, and academic tone, while also assisting in understanding complex material. Educators can leverage it to quickly rephrase instructional content or guide students in refining their drafts, fostering better written communication skills.
How to Use
- Go to quillbot.com. The core paraphraser and summariser are free; create an account to unlock history. QuillBot Premium adds full-mode access, longer word limits, and the plagiarism checker.
- Paraphraser: paste your text (up to 125 words free, 10,000 words on Premium) into the left panel. Choose a writing mode — Standard, Fluency, Formal, Simple, Creative, Expand, or Shorten — then click 'Paraphrase'. Review the output in the right panel and use the synonym wheel to swap individual words.
- Summariser: paste a long source text or enter a URL. Choose 'Paragraph' (prose summary) or 'Key Sentences' (bullet extraction) and set the target length. Useful for note-taking and research synthesis.
- Grammar Checker: paste or type your draft. QuillBot highlights grammar, punctuation, and style issues with one-click fix suggestions. Unlike basic spell-checkers, it catches sentence-level issues such as comma splices and subject-verb disagreement.
- Citation Generator: search by URL, DOI, or ISBN. Select APA, MLA, Chicago, or Harvard format and copy the generated reference. Build a full bibliography and export to Word.
- Use the QuillBot extension for Chrome or Microsoft Word to access all tools inline while drafting, without switching between browser tabs.
Available On
webchrome_extension
✓ Pros
- •Free paraphraser with seven distinct writing modes (Formal, Creative, Simple, Shorten, Expand) gives students and educators more stylistic control than any other free paraphrasing tool.
- •Deep Microsoft Word and Google Docs integration via browser extension means users can paraphrase and check grammar without leaving their document, reducing friction in the writing workflow.
- •Multi-tool suite (paraphraser + summariser + grammar checker + citation generator + plagiarism checker) in a single subscription reduces the number of separate tools a student needs to manage.
- •Paraphraser's synonym wheel lets users manually review and swap each changed word, maintaining editorial control over the final text rather than blindly accepting AI-generated output.
✗ Cons
- •Free tier word limit (125 words per paraphrase) is too restrictive for full-paragraph or full-essay use — most meaningful academic use cases require the paid Premium plan.
- •Paraphrasing capability has made QuillBot controversial in academic integrity discussions — some institutions explicitly prohibit it as a form of contract cheating or unauthorised AI assistance.
- •Grammar checker, while competent, trails dedicated tools like Grammarly Premium in depth of style and clarity suggestions, especially for advanced academic register.
- •Plagiarism checker on Premium is powered by a web crawl rather than an academic publication database, meaning it will miss matches against journal articles and student-paper repositories that tools like iThenticate cover.
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Frequently Asked Questions
Is using QuillBot considered cheating in academic settings?▾
It depends on the institution and assignment. Many universities' academic integrity policies prohibit submitting paraphrased AI output as original work, and some explicitly name QuillBot. Before using QuillBot in an academic context, students should check their institution's AI-use policy. Some instructors permit it for editing grammar or fluency but not for paraphrasing primary arguments — the distinction matters.
What is the difference between QuillBot's paraphrasing modes?▾
QuillBot offers seven modes: Standard (balanced changes), Fluency (improves readability with minimal rewording), Formal (raises register for academic or professional writing), Simple (reduces complexity), Creative (larger structural changes), Expand (lengthens the text), and Shorten (reduces word count). For academic writing, Formal mode is usually most appropriate; for accessibility adaptations or study notes, Simple or Shorten are more useful.
Can QuillBot's summariser handle research papers or long documents?▾
QuillBot Premium allows summarisation of documents up to 6,000 words (approximately a 20-page paper). Longer documents should be split into sections. The 'Key Sentences' output mode works well for extracting the main claims of a dense journal article, while 'Paragraph' mode produces a more fluid narrative summary suitable for introductory reading notes.
Does QuillBot have a plagiarism checker, and how does it compare to Turnitin?▾
QuillBot Premium includes a plagiarism checker that compares text against publicly indexed web pages. It will catch copying from websites, blogs, and news sources but does not have access to Turnitin's student-paper repository or licensed academic journals. For comprehensive academic plagiarism detection (especially for research papers with journal sources), a tool powered by iThenticate or Turnitin's database is significantly more thorough.
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