Hey Product Hunt! I built Gramfix after getting tired of copying text into web tools just to fix tone or grammar. I wanted the rewrite to happen in place. Here’s what it does: select text, press a shortcut, and the result is pasted back instantly. It works across macOS apps. It’s privacy-first and uses your own OpenAI API key on your machine, so we don’t see your text. You can create your own Prompt Shortcuts and import or share Prompt Packs. What’s different: no tab-switching, no floating editor, and no server in the middle. It’s lightweight, fast, and free at launch. Today’s build adds one-click Prompt Packs for Sales, CS, Recruiting, and Students, plus a smoother setup flow. I’d love your feedback, bug reports, and prompt ideas. The best suggestions will ship as packs with credit. Thank you for checking out Gramfix!

Gramfix

Effortless grammar correction for Mac OS

Effortless grammar correction for Mac OS