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QuillBot

Rewrite Check Grammar Summarize Translate Chat Create Images And Improve Writing

Pricing
Freemium
Free plan
Yes
Platforms
Web, Browser Extensions, Microsoft Word, Mobile

Tool Information

QuillBot
Learneo Inc.
Updated: September 2026
Tool type: AI Writing And Language Platform
Pricing: Freemium
Free plan: Yes
Platforms: Web, Browser Extensions, Microsoft Word, Mobile
Login required: Optional For Some Free Tools Required For Saved And Premium Features
API: No General Public API Verified
Browser extension: Yes
Mobile app: Yes
AI models: QuillBot Language Models And Integrated AI Features
Developer: Learneo Inc.

About QuillBot

What Is QuillBot?

QuillBot is an AI writing platform for rewriting, improving and transforming text. It became popular for its Paraphraser, but the current product has expanded into a broad writing toolkit that includes grammar checking, summarization, translation, citation assistance, AI detection, AI chat and newer creation tools.

Paraphraser

The Paraphraser remains QuillBot's best-known tool. Users can paste a passage and choose from different rewriting modes to change wording, fluency, tone or style. Free users receive access to basic modes and a smaller input limit, while Premium unlocks more modes and higher or unlimited usage according to the current plan.

Grammar Checker And Writing Improvement

QuillBot's Grammar Checker helps identify spelling, punctuation and grammar issues. It is most useful as a final language pass after major editing is complete. A grammar tool cannot determine whether a statement is factually correct, logically strong or appropriate for the audience, so human review remains important.

Summarizer

The Summarizer condenses longer text into shorter key points. Free and Premium accounts have different input limits. Summarization is useful for study notes, research preparation and reducing repetitive business documents, but it can omit exceptions or qualifying details from a complex source.

Translator

QuillBot provides translation across dozens of languages. Current mobile guidance describes translation support for more than forty languages. Translation is useful for everyday communication and draft localization, while high-value legal or commercial content should still be reviewed by a fluent person.

AI Chat

QuillBot now includes AI Chat for brainstorming, asking questions and refining writing. Free users have a limited number of daily queries while Premium expands access. Chat makes the product more useful as a general writing assistant but does not replace source verification for research tasks.

AI Detector And Humanizer

QuillBot includes tools that analyze whether text may appear AI-generated and features for rewriting text into a more natural style. AI detectors are probabilistic and can make false accusations, especially with formal or non-native writing. They should never be treated as proof of misconduct.

Citation And Academic Tools

QuillBot includes citation generation and plagiarism-related features on eligible plans. These tools can help students and researchers format references, but the user remains responsible for citing original sources correctly. Paraphrasing a source does not remove the need for attribution.

Newer Creative Tools

Current QuillBot plans also include limited or expanded access to AI image generation, an AI presentation generator and an AI website builder. These newer tools move QuillBot beyond text correction into broader content creation, although specialist design and website platforms may provide deeper control.

Mobile And Writing Assistant

QuillBot's Android app includes a floating AI writing assistant and keyboard-related support for improving text across apps. The platform also provides browser and document integrations so users can access writing assistance closer to where they work.

Who Is QuillBot Best For?

  • Students editing essays and study notes.
  • Professionals polishing emails and reports.
  • Writers improving clarity and fluency.
  • Multilingual users translating and rewriting text.
  • Researchers preparing summaries and citations.

SEO Content Use

QuillBot can improve readability, rewrite awkward sentences and summarize research notes for content teams. It should not be used to spin competitor articles into superficially different pages. Good SEO content needs original research, useful examples, accurate sources and a reason for users to choose the page over existing results.

Academic Integrity And Limitations

QuillBot should be used to improve the user's own work, not conceal plagiarism. Rewriting can change meaning, citations can be incomplete and AI detectors can be wrong. Students should follow their institution's AI policy and keep original source references throughout the writing process.

Key features
  • Paraphraser: Rewrites text using multiple style modes.
  • Grammar Checker: Corrects language and punctuation issues.
  • Summarizer: Condenses longer content into key points.
  • Translator: Supports dozens of languages.
  • AI Chat: Helps brainstorm and improve drafts.
  • AI Detector: Estimates whether text may appear AI generated.
  • Citation Tools: Helps format academic references.
  • AI Image And Presentation Tools: Adds newer creative content capabilities.
  • Mobile Writing Assistant: Improves text across supported apps.
Use cases
Paraphrasing,Grammar Checking,Essay Editing,Summarization,Citation Generation,Translation,Email Writing,Study Support
How to use

How To Use QuillBot

  1. Start With Your Own Draft: Paste text you are authorized to edit.
  2. Choose The Right Tool: Use Paraphraser for wording Grammar Checker for correctness or Summarizer for condensation.
  3. Select A Paraphrasing Mode: Match the desired tone and formality.
  4. Compare With The Original: Confirm that facts names numbers and meaning remain correct.
  5. Run Grammar After Major Rewriting: Perform a final language pass near the end.
  6. Add Citations: Keep attribution to original sources even when wording changes.
  7. Use AI Chat For Ideas Not Proof: Verify research claims separately.
  8. Use Mobile And Extensions For Daily Work: Bring writing assistance into the apps you already use.
  9. Follow Academic Policy: Do not use paraphrasing to disguise copied work.
Best for
Students, Writers, Professionals, Researchers, English Learners
Integrations
Chrome,Microsoft Word,Mobile Apps,AI Chat,Citation Tools,Writing Assistant
Commercial use
Commercial use of your writing is subject to QuillBot terms and your rights to the source material. Academic integrity rules still apply.

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