MessageMate

Polish your drafts with AI, adapted to Gmail, Slack, and other platforms.

MessageMate fixes the message you’re already writing, right on the page. Type your draft in Gmail, Slack, or another compose box, open MessageMate, and click one button. It cleans up grammar and tone to match the site, then updates your draft in place. It never sends for you. What it does • Reads your draft from the page • Fixes grammar, clarity, and tone • Matches formality to the site (email vs chat) • For email, adds a natural greeting and your sign-off • Lets you refine the result with optional feedback Your keys, your control • Use your own Gemini, OpenAI, or Claude API key • Keys and your name/signature are saved in your Chrome account • Add instructions only when you want extra guidance Simple by design. Write → click Fix → review → send when you’re ready.