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LRGEX Compress is a free, open-source Windows tool that compresses and extracts archives. It's built around Zstandard (zstd) — a modern compression algorithm optimized for speed — and designed around one idea: you should never have to think about compression settings.
No levels. No dictionaries. No solid-archive checkboxes. No nag screens. You right-click a folder, it compresses. You right-click an archive, it extracts. That's it.
- Fast. Uses all your CPU cores automatically. Big folders finish in seconds.
- Simple. Two actions: Compress, Extract. No settings, ever.
- Lossless. Your files come out exactly as they went in — timestamps, hidden flags, read-only flags, symbolic links, all preserved.
- Safe. Atomic writes mean a crash never leaves a broken archive.
- Free. MIT licensed, no ads, no trial, no telemetry.
LRGEX Compress's native format is .zgx — a tar.zst archive (tar stream compressed with zstd). It also extracts .zip and .rar. You don't need WinRAR or 7-Zip installed to extract those.
- Windows 10 or Windows 11
- ~20 MB free disk space
- No administrator required for installation