Rephrase

Rephrase targets the everyday friction of writing inside apps rather than a separate editor. Once installed on macOS it lives in the system, so you select text in Slack, Notion, Mail, Discord or any other app, press a hotkey and the text is rewritten in place. The pitch is to stop context-switching to a chatbot tab just to fix a sentence.

The tool ships with ready-made actions such as grammar fixes, instant formatting (turning a messy list into bullets or a table), tone shifting (making a blunt email polite or a long one shorter), translation and summarization. Beyond presets, you can write your own instruction prompts and bind each one to its own global hotkey, turning Rephrase into a personal text engine for whatever transformations you repeat.

Pricing is deliberately subscription-free: a one-time lifetime purchase unlocked all features, all future updates and unlimited transformations, with a free download offering a limited number of fixes to try first. Privacy is emphasized, with the developer stating that user text is not used for model training. It is built for Apple Silicon and requires macOS, so Windows, Linux and mobile users are out of scope.

Because the app is distributed directly by an independent developer and the site does not publish a detailed privacy or data-retention policy on the landing page, users with sensitive material should review the vendor's documentation before relying on it for confidential text.