According to AlphaMoat, as of 2026-09, the Chrome extension Outwrite has 20,000 users (+0% MoM), rated 4.4 (113 reviews) — ranked #317 of 9,324 AI browser extensions, and #20 of 744 in Writing.
What is Outwrite
Write perfect content with Outwrite. Check spelling & grammar, improve writing style, find synonyms and paraphrase sentences. Become a better writer with Outwrite for Chrome. Our AI writing assistant is more than just a grammar checker—it helps turn your ideas into powerful sentences.
It works wherever you write online, including Gmail, Outlook, LinkedIn, Medium, and WordPress.
You can use Outwrite to paraphrase entire sentences, strengthen your vocabulary, fix passive voice, and help increase or decrease your word count.
Free features of the Outwrite Editor include:
Spell Checker
Grammar and Punctuation Checker
Show the rest of the store description▾
Thesaurus suggestions
Writing statistics (including readability, grade level and word count)
French, Spanish, and English support
Upgrade to our Pro plan to access:
Paraphrasing Tool (to rewrite and restructure entire sentences)
Style suggestions
Structure suggestions (like changing passive voice to active voice)
Plagiarism Checker
It's not just Chrome—you can also use Outwrite to improve your writing using Google Docs, Word, Edge, iOS, and with our web app.
Get started with your free Outwrite account today!
Privacy Policy: https://outwrite.com/privacy Terms of Use: https://outwrite.com/terms
Over 1 million people use Outwrite for tasks like:
Editing homework or an English essay for school
Enhancing assignments for college using appropriate synonyms from our thesaurus
Checking punctuation, like commas and apostrophes
Writing clear and impactful copy for websites, ads, and social media
Refining business documents & reports
Grading an academic thesis
Rewriting text to improve SEO and readability
Teaching students how to write more effectively
You don't have to be Shakespeare or Hemingway—just use Outwrite to proofread and write like a pro.
Note - Outwrite rebranded from GradeProof in August 2020
Extension profile
User Growth Trend
Popular in Writing
Grammarly for Chrome helps you write with confidence. Get AI support for grammar, clarity, and tone, from first draft to final edit.
+ Compare
Improve your writing - Detect and Humanize AI content, create images, Paraphrase, Check Grammar, AI Chat, and more!
+ Compare
Instantly Enhance Your Texts with LanguageTool’s Grammar Checker and Paraphrasing Tool
+ Compare
Unlock your potential with Wordtune's free AI writer – paraphrase, rewrite, translate, fix grammar, and more.
+ Compare
Improve your English communication with Ginger's all-in-one AI spelling and grammar checker!
+ Compare
Write emails & messages, chat with page, improve writing, translate, and do much more. Powered by the most intelligent AI models
+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.