SnapRewrite

SnapRewrite integrates an AI writing assistant directly into any macOS text field, allowing users to select text and invoke rewriting, polishing, translation, or custom commands without leaving the current application. It supports three trigger methods—drag selection, double‑click, or a configurable shortcut—and returns results within seconds, which can be applied back to the original document with a single click.

The tool ships with a built‑in free Chinese model and can connect to any OpenAI‑compatible endpoint, giving users the option to use external models or their own API keys. Custom commands let repetitive writing tasks be packaged as reusable actions, and language control prevents mixed‑language output. Configuration and API keys are stored locally, and requests are sent only when the user initiates a command, prioritizing privacy.

A trial build is available via GitHub Releases, requiring standard macOS permissions for cross‑application access. The free tier includes daily usage limits and core features, while a one‑time purchase unlocks unlimited custom commands, proxy support, and the ability to integrate additional models.