
Firmware
OS-303
Hype41/100Open Source TB-303 CPU firmware
OS-303 is custom firmware for the Roland TB-303, by @djphazer. Open source under MIT, latest release os303-v0.8.1 (July 2026), 52 stars on GitHub.
forRoland TB-303·by@djphazer
Unclaimed. Is this yours? Sign in with GitHub as @djphazer to claim it.
Download os303-v0.8.1
OS-303_v0.8.1_9a88226.syx· 23 KB· +1 file
MIT· djphazer/OS-303·downloads come from the creator’s GitHub releases
markdown · @mention · ⌘↵
Loading comments…
Suggestions to the creator
Suggest a change to the creator: a bug, a feature, a port. Link a GitHub issue if there is one.
No suggestions yet.
Ideas, bugs and port requests for this firmware will show up here.