unpackZST

unpackZST is a small, focused macOS utility for extracting Zstandard (.zst) compressed files. Just drop one or more .zst files onto the app and unZST takes care of the rest — quickly, locally, and without unnecessary options. Why unZST? Zstandard is a modern, fast compression format widely used in development, backups, and infrastructure — but macOS has no built-in way to open .zst files. unZST fills that gap with a clean, native experience. Features - Drag & drop .zst files to extract - Optional automatic extraction of .tar.zst archives - Optional deletion of .tar files after extraction Fast, streaming decompression (no unnecessary memory usage) - Works fully offline - No background services, no setup - Designed for macOS - Minimal, distraction-free interface - Clear feedback after each extraction - Settings are remembered automatically - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - Part of The Beaver Tools — a collection of focused Mac utilities.