rio
A Tcl/Tk editor with tabs, split editing, project search, git, and optional AI agents.
Status
0.4.0 alpha — 2 October 2026. Linux is verified at the tag. The suite last passed on Windows 11 on 17 September and macOS 27 on 29 September; Homebrew and MacPorts installation remain untried. BSD remains unverified. Extension interfaces may change.
Autosave keeps separate recovery copies; your file is written only when you save. Untitled tabs have no recovery copy.
Install · User manual · Known limitations
Extensions & repositories
Install providers, modes, and themes.
The two faces, one brain
The Tk window connects to a local or remote core. A terminal frontend is planned.
Cross-platform
Use the quick start or Windows notes.
Why rio exists
By the numbers
Learn more
Changelog · Roadmap · Architecture decisions
Source, and reporting something
Report a bug with your OS, version, build, and reproduction steps.
Credits
See the upstream credits.
License
MIT.