Chrome extension · MV3

Rewrite anywhere.
Your API keys, your data.

Rewriter AI adds an AI writing assistant to every text field on the web, and a chat window in your toolbar — powered by OpenAI, Gemini, Claude, Grok, Groq, Mistral, or OpenRouter. Bring your own key. There's no backend in between.

View source on GitHub Add to Chrome — coming soon

Trigger it anywhere with Ctrl+Shift+R (⌘+Shift+R on Mac)

jordan is drafting a follow-up email
The Rewriter AI popover showing a rewritten email draft, with Replace, Copy, and Try another actions
How it works

Three steps. Zero context switching.

No separate tab, no copy-pasting into a chat window unless you want to.

01

Focus any text field

A small icon appears next to the field the moment it holds enough text to be worth rewriting.

02

Pick a preset, or describe it

Concise, Formal, Friendly, Fix Grammar — or type your own instruction in plain English.

03

Replace, copy, or try again

The result drops right back into the field you were editing. Nothing leaves your browser except the request itself.

Features

Built for wherever you already write

Inline rewrite, everywhere

Works in any text field or contenteditable area on any site — email, comments, docs, forms.

Full chat, in your toolbar

Open a real conversation with your chosen model from the extension popup, or pop it into its own window.

Presets you control

Edit, reorder, delete, or add your own quick-rewrite instructions from the settings page.

Keyboard-first

Ctrl/Cmd+Shift+R opens the rewrite popover on whatever field you're focused in, hands never leave the keyboard.

Per-site control

Turn the inline icon off globally, or exclude specific sites you don't want it appearing on.

No backend, no markup

You call the provider directly with your own key, at their normal rates. We never sit in the middle.

Bring your own key

Seven providers, one extension

Add a key for whichever you already use — mix and match, or stick to one.

OpenAI · ChatGPT Google · Gemini Anthropic · Claude xAI · Grok Groq Mistral OpenRouter
Settings

Every key, every model, one page

chrome-extension://.../options.html
The Rewriter AI settings page listing API key fields and default models for all seven providers

No server. Nothing to leak.

Rewriter AI has no backend. Your API keys, chat history, and presets stay in your browser's local storage. When you rewrite text or send a chat message, it goes straight from your browser to the provider you configured — never through us.

Read the full privacy policy →