ScreenTranslate is a macOS application designed to provide instant translation of any text visible on your screen. It allows users to select any area containing text and get immediate translations without interrupting their workflow.

The product offers drag-to-translate functionality with instant results by dragging over any area. It provides translation between 18 languages including Korean, English, Japanese, and Chinese with auto-detect source language support. All processing happens on-device with no data collection or tracking. The app works offline after downloading language packs and includes translation history that automatically saves every translation.

The application uses Apple Vision OCR for text recognition and Apple Translation for the actual translation processing. It operates through a simple three-step process: pressing a customizable keyboard shortcut to enter selection mode, dragging to select the text area, and viewing the translation that appears in a popup near the selection.

ScreenTranslate eliminates the need for context switching and copy-pasting into browsers. It provides privacy-first translation with all processing occurring locally on the Mac. The tool helps users translate uncopyable text in images, videos, and locked PDFs while maintaining workflow efficiency.

The application targets macOS users who need quick translations without leaving their current applications. It's designed as a lightweight menu bar app that uses minimal system resources and is compatible with macOS 15+ on both Apple Silicon and Intel processors.