Your library, your style.
Media Artwork formats your game covers automatically with the right aspect ratios, while CATui Customs gives you full freedom with custom widgets, icons, and flexible layouts.

Your collection, with a little more personality.
Media Artwork formats your game covers automatically with the right aspect ratios, while CATui Customs gives you full freedom with custom widgets, icons, and flexible layouts.

Single-process Libretro emulation with Frame Generation for smooth motion, high-fidelity shaders, and Cloud Save so your progress follows you everywhere.

Integrated RetroAchievements with full online and offline support. Hunt trophies wherever you play and sync your progress the moment you reconnect.

RAMP connects retro game memory to Godot in real time. Experience reactive overlays, dynamic visual mods, and gameplay effects that play along with you.
GBA Pong example: this RAMP mod remasters the ball with glow and a particle trail, adds controller vibration and screen shake, and gives the scoreboard a reactive overlay.


Before you make yourself at home.
CATui is an open source emulation project built with Godot and Libretro. It brings your game library, emulation, customization, and social features together in one interface. It runs only cores on its compatibility list. Some cores are custom builds with behavior designed specifically for CATui. Check the compatibility list and updates in #core-status on our official Discord.
Yes. CATui is free to use. It is currently in testing, and updates will be announced through our official Discord.
No games, ROMs, BIOS files, or encryption keys are included. Bring your own legally obtained games and any files required by the corresponding Libretro core.
CATui is currently in testing. Public builds will appear on the Downloads page when they are ready. Follow our official Discord for release updates.
Documentation will be released gradually as CATui develops. The project is currently in testing. Guides and references will become available as they are ready, with updates shared on our official Discord.
Follow the latest builds and help shape what comes next.
BUILD 01
Follow the project's Windows builds and check the notes for each release.
CATui does not include games or BIOS files. Platform names belong to their respective owners.