Quillbot

AI writing tool by Quillbot — paraphrasing, grammar checking, and summarizing with Quillbot.

🤖 Writing & Content
4.5 Rating
🏢 Quillbot

📋 About Quillbot

QuillBot is an AI-powered writing and paraphrasing tool built by the company QuillBot, which was founded and launched in 2017. Originally developed as a simple paraphrasing assistant, it has grown into a comprehensive writing suite used by millions of people worldwide. The platform was created to help users improve their writing quality, rephrase content, and produce cleaner, more polished text with minimal effort.

The technology behind QuillBot relies on advanced natural language processing and machine learning models that analyze the semantic meaning of your text rather than simply swapping out words. When you input a sentence or paragraph, the AI understands the context and intent before generating a rewritten version that preserves the original meaning. This approach allows the tool to produce paraphrases that feel natural and coherent rather than mechanical or robotic.

QuillBot's three standout features include its Paraphraser, Grammar Checker, and AI Summarizer. The Paraphraser offers multiple writing modes such as Standard, Fluency, Formal, Academic, and Creative, giving you precise control over how your content is reworded. The Grammar Checker scans your text for errors in punctuation, spelling, and sentence structure in real time, while the Summarizer can condense lengthy articles or documents into concise key points in seconds.

You can access QuillBot through a free tier that allows paraphrasing of up to 125 words at a time and provides limited mode options. The Premium plan, priced at around $9.95 per month or less with annual billing, removes word limits and unlocks all paraphrasing modes, faster processing, and full access to the grammar and summarizer tools. The free plan suits casual users or students exploring the tool, while the Premium tier is better suited to professional writers, researchers, and academics who rely on it daily.

In 2026, QuillBot is used by over 35 million people globally, including students, ESL learners, journalists, and content marketers who depend on it to streamline their writing workflows. You can integrate it directly with Google Docs and Microsoft Word through browser extensions, making it a seamless part of your existing writing process. Its real-world impact is especially significant in academic settings, where students use it to improve essay clarity, and in professional environments where teams use it to adapt content quickly for different audiences and tones.

⚡ Key Features

AI-powered paraphrasing tool rewrites content in multiple modes to improve clarity and style.
Grammar checker automatically detects and corrects grammatical errors to enhance writing quality.
Summarizer condenses long articles and documents into concise, easy-to-read summaries quickly.
Plagiarism checker scans content against billions of web pages to ensure originality.
AI writing assistant helps users generate and expand content ideas with minimal effort.
Citation generator automatically formats references in APA, MLA, and Chicago styles accurately.
Co-Writer integrates multiple tools in one workspace for a seamless end-to-end writing experience.
Translator supports over 30 languages enabling users to paraphrase and write across language barriers.

🎯 Popular Use Cases

🔍
Academic Paraphrasing
Students and researchers use QuillBot to rephrase source material in their own words, avoiding plagiarism while retaining original meaning. This helps them produce cleaner academic writing and pass plagiarism checkers more effectively.
📝
Essay & Article Rewriting
Bloggers and content writers use QuillBot's paraphraser to refresh existing content or rewrite drafts with improved clarity and fluency. They achieve polished, publish-ready articles in a fraction of the time it would take manually.
📊
Grammar & Style Correction
Non-native English speakers and professionals use QuillBot's Grammar Checker to eliminate grammatical errors and awkward phrasing from emails, reports, and documents. The result is cleaner, more professional communication that builds credibility.
🎓
Summarizing Research Papers
Graduate students and academics use QuillBot's Summarizer to condense lengthy research papers, PDFs, and articles into concise key points. This accelerates literature reviews and helps them absorb large volumes of information quickly.
💼
Business Email & Report Writing
Business professionals use QuillBot's paraphraser and grammar tools to refine client-facing emails, proposals, and internal reports. They produce clear, professional-sounding documents that improve stakeholder communication and brand perception.

💬 Frequently Asked Questions

Is Quillbot free to use?
Yes, QuillBot offers a free plan that includes access to the paraphraser (up to 125 words per input), grammar checker, summarizer, and co-writer with limited features. The Premium plan costs $9.95/month (billed annually) or $19.95/month (billed monthly) and unlocks unlimited paraphrasing, more paraphrasing modes, faster processing, and advanced grammar features.
How does Quillbot compare to ChatGPT?
QuillBot is a specialized writing assistant focused on paraphrasing, grammar checking, summarizing, and citation generation, while ChatGPT is a general-purpose conversational AI capable of generating original content from scratch. QuillBot excels at refining and restructuring existing text with precision, whereas ChatGPT is better suited for open-ended content creation and question answering.
What can I do with Quillbot?
QuillBot offers a paraphraser with multiple modes (Standard, Fluency, Formal, Academic, Creative, Expand, Shorten), a grammar checker, a summarizer, a co-writer workspace, a plagiarism checker (Premium), a citation generator, and a translation tool supporting over 45 languages. These tools collectively help users write, edit, and refine content more efficiently.
Is Quillbot safe and private?
QuillBot states that it does not sell user data to third parties and uses encryption to protect data in transit and at rest. However, text entered into the tool may be used to improve their AI models, so users should avoid inputting highly sensitive or confidential information. Always review their privacy policy for the most current data handling practices.
How do I get started with Quillbot?
Visit quillbot.com and create a free account using your email address or Google login — no credit card is required. Once logged in, paste your text into the paraphraser, summarizer, or grammar checker and click the respective action button to instantly receive AI-enhanced suggestions. A browser extension for Chrome is also available for editing directly within Google Docs and other web platforms.
What are the limitations of Quillbot?
The free plan restricts paraphrasing to 125 words per input and limits access to only two paraphrasing modes (Standard and Fluency), which can be restrictive for heavy users. The plagiarism checker is exclusively available on the Premium plan, and even Premium paraphrasing occasionally produces outputs that require manual review to ensure contextual accuracy.

👤 About the Founder

Rohan Gupta
Rohan Gupta
CEO & Co-Founder · Quillbot
Rohan Gupta co-founded QuillBot alongside Anil Jason and David Silin while studying at the University of Illinois at Urbana-Champaign. He holds a background in computer science and entrepreneurship, leveraging machine learning expertise to build advanced NLP tools. He built QuillBot to democratize high-quality writing assistance and make professional-grade writing tools accessible to students and professionals worldwide.

⭐ User Reviews

★★★★★
QuillBot's paraphraser with the Formal and Academic modes has completely transformed how our team repurposes long-form content for different audiences. The Chrome extension integration with Google Docs makes it seamlessly part of our daily workflow without switching tabs.
SK
Sarah K.
Content Manager
2025-11-15
★★★★★
I use QuillBot's grammar checker and summarizer to quickly digest technical documentation and polish my internal reports before sharing with non-technical stakeholders. The summarizer is impressively accurate for long articles, though the free word limit on paraphrasing pushes you toward Premium fairly quickly.
JT
James T.
Software Engineer
2025-10-20
★★★★★
The citation generator alone has saved our content team hours every week when producing whitepapers and research-backed blog posts. Combined with the co-writer workspace, QuillBot Premium has become an indispensable tool in our content production pipeline.
PM
Priya M.
Marketing Director
2025-09-10
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quillbot.com
Quillbot
AI writing tool by Quillbot — paraphrasing, grammar checking, and summarizing with Quillbot.
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ℹ️ Quick Info
CategoryWriting & Content
DeveloperQuillbot
PlatformWeb, iOS, Android
AccessFreemium
Rating⭐ 4.5/5
Launched2017
🏷️ Tags
Writing & ContentFreemiumQuillbotAI

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