According to AlphaMoat, as of 2026-09, the Chrome extension HyperWords AI Paraphrasing Tool and Grammar Checker has 29 users (+141.7% MoM) — ranked #6,600 of 9,324 AI browser extensions, and #509 of 744 in Writing.
What is HyperWords AI Paraphrasing Tool and Grammar Checker
Stop copying text into another tab. Fix grammar, rewrite sentences and change tone right where you type, free. Tired of copying a sentence into Grammarly or QuillBot, waiting for it to load, then copying the fix back. HyperWords skips all of that.
Highlight any text on any website, get an instant AI rewrite, grammar fix, tone change or summary right there, and keep typing.
HyperWords is a free AI grammar checker and paraphrasing tool built for people who write everywhere, not just in one app. Email, Google Docs, LinkedIn, a support ticket, a job application, a school essay. If you can highlight it, HyperWords can fix it.
Looking for a Grammarly alternative or a QuillBot alternative that does not lock its best features behind a paywall. HyperWords gives you a grammar checker, a paraphrasing tool, a tone changer and an AI writing assistant in one lightweight extension, and the free plan is actually usable, not a teaser.
What you get
One, a paraphrasing tool and AI rewriter that rewrites any sentence or paragraph while keeping your meaning intact. Great as a fast sentence rewriter for essays, emails, resumes and posts.
Show the rest of the store description▾
Two, a real grammar checker. Catches grammar and spelling mistakes as you write, on top of any website, not just inside one editor.
Three, a tone changer. Turn a blunt message into something professional, casual, friendly or academic in one click.
Four, an AI text summarizer. Turn a long article or email into a short summary, or expand a rough note into full text.
Five, built in translation. Translate highlighted text into another language without leaving the page.
Six, writing continuation. Stuck mid sentence. Let the AI keep going in your own voice.
Seven, custom prompts. Save your own rewrite instructions for tasks you repeat often.
Eight, a word by word diff preview, so you see exactly what changed before you accept anything. Nothing gets rewritten behind your back.
Nine, a floating popup or a side panel, your choice, plus keyboard shortcuts and dark mode.
Why switch from Grammarly or QuillBot
Most people end up paying for two or three separate tools, one for grammar, one for paraphrasing, one for tone. HyperWords puts all of it in a single chrome extension, so you stop juggling tabs and subscriptions. It is built for anyone who wants a fast grammar checker and paraphrasing tool without leaving the page they are writing on.
Free, and actually free
Twenty five rewrites a day. Twenty five chats a day. Unlimited grammar fixes. No credit card required to start.
Built for
Students who need a grammar checker and paraphrasing tool they can trust for essays and papers.
Professionals who want a quick AI writing assistant for emails, reports and messages.
Writers, marketers and support teams who need a fast text rewriter and tone changer every day.
Non native English speakers who want grammar correction and paraphrasing help built right into the browser.
Try it now
Install HyperWords, highlight any text on any website, and see your first AI rewrite in seconds. Free to start, no credit card needed.
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.