Rewrite 
Any Text
in Seconds. For Free.
No copy-paste. No switching tabs. Just select text on any website, and let AI rewrite, fix grammar, or adjust tone instantly.
Add to Chrome· It's free
Three steps. That's it.
Select text, pick an action, and get results. That's the whole process.
Select text on any website
Highlight any text on any website — Gmail, Google Docs, Notion, Twitter, LinkedIn. A floating sparkle icon appears instantly next to your selection.
Pick an action or type a prompt
Choose from Rewrite, Formal, Casual, Grammar, Expand, Shorten — or open search mode and type any custom prompt. AI generates multiple alternatives instantly.
Replace, copy, or insert with one click
Click any suggestion to replace the original text. Or copy to clipboard, or insert after. Word-diff highlighting shows exactly what changed.
We handle everything.
You just write.
From smart rewriting to grammar fixing, everything your writing needs is built right into one floating panel.
Smart Rewrite
Generate multiple alternatives with different styles in one click. Word-diff highlighting shows exactly what changed — copy, tweak, or keep moving.
Tone Adjustment
Switch between Formal, Casual, and Clearer with one click.
Grammar Fix
Catches errors. Strikethrough diff shows every change.
Search Mode
Type any custom prompt — translate, summarize, bullet points.
Privacy First
Text only sent when you trigger an action. No tracking.
Works Everywhere
Gmail, Google Docs, Notion, Slack, Twitter, LinkedIn — any website with a text input. Shadow DOM isolation keeps it conflict-free.
What will you rewrite?
From quick email fixes to full document rewrites, one hotkey is all it takes.
Writing
Emails, essays, blog posts, social media. On any website, anytime.
Work
Slack messages, email replies, reports, presentations. Polish everything.
Learning
Research papers, assignments, translations. Level up your academic writing.
Try These Prompts
The reviews are in.
People really love it.
Real stories from Twitter, Reddit, LinkedIn and beyond.
“HyperWords replaced three tools for me. Cmd+D, pick an option, done — that's the entire workflow. I got my evenings back.”
“I used to agonize over every Slack message. Now I draft, Cmd+D, pick the clearer version, send. It changed how I work.”
“I recommend HyperWords to every graduate student I mentor. Grammar fixes that respect your voice are rare — this one does it.”
“Our blog output doubled. Not because I write faster — because I stopped second-guessing every sentence. That's the real unlock.”
“I live in PRs, docs, and issue comments. Search mode with custom prompts replaced my 'make this clearer' mental loop entirely.”
Cmd+D is muscle memory now. Can't write emails without HyperWords anymore.
Rewrote 4 client emails before coffee. I genuinely don't know how I wrote before this.
Switched my entire writing workflow last week. Word-diff highlighting is genuinely better here — you see exactly what changed.
As a non-native writer, Grammar mode is incredible. It fixes my mistakes without erasing my voice.
Search mode is the killer feature nobody talks about. 'translate to Vietnamese', 'turn into a tweet' — just works.
We rolled HyperWords out team-wide last quarter. Launch copy ships 3× faster, and nobody debates formality anymore.
Small thing, huge UX win: auto-selects the last sentence when I Cmd+D with nothing highlighted. Whole flow feels effortless.
Copywriters: stop juggling Grammarly + a separate rewriter + ChatGPT extension. Just get this one.
Our growth team rolled HyperWords out last quarter. Three things changed immediately: Slack messages stopped getting 'can you clarify?' replies, our blog draft-to-publish cycle cut from 4 days to 1, and new hires onboard faster because tone consistency is enforced in real-time. Best $10/mo we spend per seat.
Finished my novel's first chapter edit in 20 minutes. This tool actually understands nuance.
Works on every website
you already use
HyperWords injects into any webpage — Gmail, Notion, Google Docs, LinkedIn, Twitter, and everywhere else you write.
Choose your plan.
Cancel anytime.
Free forever with 25 daily actions. Unlock unlimited from $9.99/month — save more by going annual.
Got questions? We've
got answers.
Everything you need to know about HyperWords before you get started
HyperWords is a Chrome Extension that adds AI-powered writing assistance to every website. Select text, press a hotkey, and get instant rewrites, grammar fixes, tone adjustments, and more.
Yes. You get 25 free AI actions every day — no credit card required. All 9 writing actions, search mode, and synonym mode are included. Pro ($9.99/mo) removes the daily limit.
Yes. HyperWords works on Gmail, Google Docs, Notion, LinkedIn, Twitter, Slack, and any website with text input. It uses Shadow DOM isolation so it never conflicts with the host page.
HyperWords focuses on rewriting and tone adjustment, not just grammar. It shows word-level diff highlighting so you see exactly what changed. The search mode lets you type any custom prompt, not just predefined actions.
Not yet in v1. HyperWords uses its own AI backend. We're planning BYOK (Bring Your Own Key) support in a future update.
Your text is only sent to the AI when you trigger an action. No background collection, no tracking, no analytics. The extension reads text only on the active tab and only when you ask it to.
You can cancel anytime from the extension popup — click 'Manage subscription'. No questions asked, no lock-in period.