QuillBot

QuillBot is an AI-powered writing and productivity platform that helps users rewrite, refine, summarize, translate, and create content. It was originally built around its Paraphraser, which was created in 2017 by Anil Jason, Rohan Gupta, and David Silin while they were working to help English-language learners improve their writing. QuillBot later expanded into grammar checking, summarization, citation generation, plagiarism checking, AI detection, translation, AI chat, image generation, and other creation tools.

The platform is designed for students, educators, professionals, content creators, and teams. Its Paraphraser can rewrite text in different styles and modes, allowing users to adjust wording while preserving the intended meaning. Premium users receive unlimited paraphrasing and access to additional paraphrasing modes and customization options.

QuillBot’s Grammar Checker identifies and helps correct grammar, spelling, punctuation, and other writing issues. Its browser extension allows users to access these writing capabilities directly inside websites and services they already use. QuillBot’s Chrome extension, for example, can work across Gmail, Google Docs, LinkedIn, Outlook, Slack, Confluence, Notion, Facebook, X, and other websites.

The platform also includes a Summarizer for condensing longer material, a Citation Generator for creating citations, a Plagiarism Checker for checking text originality, and an AI Detector. The Premium plan includes up to 25,000 words per month for plagiarism checking, while its plagiarism tool supports more than 100 languages.

QuillBot has also expanded into AI-assisted content creation. Its current Premium offering includes AI Chat, AI image generation, AI Humanizer, translation, and Flow for organizing documents. Free users can access a more limited selection of these tools, while Premium increases usage limits and unlocks additional functionality.

Language support is another significant part of QuillBot. The Paraphraser supports more than 25 languages, while its Translator currently supports 52 languages. The Grammar Checker supports English, German, Spanish, and French, while several other products, including Flow, Summarizer, Citation Generator, and Plagiarism Checker, currently have narrower language availability.

QuillBot is available through a web application, browser extensions, desktop applications, mobile applications, and a Microsoft Word add-in. Current official product pages list Chrome, Edge, Safari, Windows, macOS, Android, iOS, and Word as supported platforms or integrations.

For teams, QuillBot offers Team Plans that allow organizations to purchase multiple Premium seats under centralized billing. Team features include a team style guide and dictionary, an admin panel, usage reports, writer management, data controls, and centralized billing. Team plans are available for organizations purchasing multiple seats, with pricing discounts based on the number of seats.

QuillBot is particularly useful when the main goal is improving or transforming existing writing rather than simply generating text from scratch. Its paraphrasing, grammar correction, summarization, citation, translation, and rewriting tools make it suitable for academic writing, professional communication, content creation, editing, and multilingual workflows.

Pricing

Free — $0/month

The free plan includes:

• Paraphrasing up to 125 words at a time
• Standard and Fluency paraphrasing modes
• Basic grammar correction
• Limited AI Humanizer access
• Basic summaries
• Limited AI Detector access
• Free translation with usage limits
• Access to QuillBot’s browser extensions and apps

Premium — from $8.33/month billed annually

QuillBot’s current displayed annual pricing is $8.33/month when billed annually, although promotional pricing may temporarily reduce the amount charged for the first year. Current checkout pages also show monthly and quarterly billing options, with prices varying according to the selected billing cycle and applicable promotion.

Premium includes:

• Unlimited paraphrasing
• Unlimited custom and predefined paraphrasing modes
• Advanced grammar recommendations
• Full AI Humanizer access
• Full AI Detector access
• Plagiarism checking
• Up to 25,000 plagiarism-checking words/month
• Custom summaries
• Higher AI Chat usage
• AI image generation
• Expanded translation capabilities
• Higher Flow storage
• Faster processing
• Paraphrasing in 23 languages

Team Plan

QuillBot also offers Team Plans with multiple Premium seats, centralized billing, usage metrics, user management, data controls, and priority assistance. Pricing depends on the number of seats.

Pricing Model

Freemium + Subscription + Team Plans

Pricing Note

QuillBot offers a permanent Free plan and paid Premium subscriptions. Premium can be purchased monthly, quarterly, or annually, with the annual plan offering the lowest regular monthly equivalent on the current pricing page. Prices and promotional discounts can change, and QuillBot notes that pricing may vary by region and local currency.

Review

QuillBot is a versatile AI writing platform whose strongest feature remains its ability to rewrite and improve existing text. The Paraphraser offers multiple modes and customization options, while the Grammar Checker, Summarizer, Citation Generator, and Plagiarism Checker make it useful for academic and professional writing workflows.

Its expansion into AI Chat, image generation, translation, Humanizer, and other tools makes QuillBot broader than a traditional paraphrasing application. The combination of web access, browser extensions, desktop apps, mobile apps, and a Word add-in also makes it convenient for users who work across multiple platforms.

The Free plan is useful for basic rewriting and proofreading, but its word and feature limits can make Premium more practical for frequent users. Another consideration is that language support differs substantially between products, so users should check the supported language for the particular tool they intend to use.

For students, educators, professionals, content creators, and teams looking for an all-in-one writing and editing toolkit, QuillBot provides a broad collection of practical AI-assisted writing tools at a relatively accessible Premium price.