Helium Terminal

A tiny macOS terminal for coding agents, built on libghostty.

Install · GitHub

Helium Terminal: a sidebar with an auth tab group, a collapsed docs group, colored labels, folders, a listening port and notification edges, next to an agent transcript, a dev server and a shell in split panes with a green notification ring

The sidebar shows every tab's branch, folder and ports. A pane waiting on you turns orange until you answer. Tabs split, group and take labels, and your Claude Code and Codex sessions come back after a quit.

HeliumiTerm2 3.7
Size15 MB176 MB
Launch~250 ms~570 ms
Idle memory62 MB203 MB
Idle CPU~0.2%~2%

Apple Silicon, median of five launches. Script.

brew install --cask yowmamasita/tap/helium-terminal
zb install yowmamasita/tap/helium-terminal

Apple Silicon, macOS 13 or later.