Download

Get Lass0

Free to start. About 2.5 GB of disk for the on-device model, downloaded once on first launch.

macOS (Apple silicon and Intel)
Universal .dmg. macOS 12 or later. v0.4.0 · 30 MB
Download
Windows 10 and 11
Installer (.exe). v0.4.0 · 9 MB
Download
Linux (AppImage)
Ubuntu 24.04 or newer, Debian 13, Fedora 40. Needs the tesseract-ocr package. v0.4.0 · 96 MB
Download
Linux (.deb)
Ubuntu 24.04 or newer and Debian 13. Installs tesseract-ocr for you. v0.4.0 · 19 MB
Download

After you install

  1. Open Lass0. It lives in the menu bar or system tray.
  2. Let it download its model once. It checks the file before using it.
  3. On macOS, allow Screen Recording when asked.
  4. Press Cmd+Shift+G (Ctrl+Shift+G elsewhere) and drag a region.

Builds are not yet code-signed, so macOS and Windows may warn on first open. See the troubleshooting notes.