compare

kitty vs Rio

The same facts for both, read from GitHub every night, and the relation a person reviewed.

kitty vs Rio
Fact	kitty	Rio
Language	Python	Rust
Licence	GPL-3.0	MIT
Stars	36k	7.7k
Latest	v0.50.0	v0.5.29
Last push	2026-11-12	2026-11-08
Release cadence	about 7 days between releases	about 18 days between releases
Active contributors	28+ commit authors on the default branch in the last 90 days	5 commit authors on the default branch in the last 90 days
Flags	none	none

How they relate

Both replace iTerm2. Alternatives to iTerm2 →
Full replacementkittyGPU-rendered, cross-platform, with tabs, splits and a graphics protocol.
PartialRioGPU-rendered terminal that also runs in the browser; fewer integrations.
Both replace Warp. Alternatives to Warp →
PartialkittyA terminal without accounts or built-in AI.
PartialRioA terminal without accounts or built-in AI.