Window title (OSC 2)

Category: extensions · Tags: Operating System Commands (OSC), Xterm Extensions · Specification ↗

OSC 2 sets the terminal window title. The sequence is ESC ] 2 ; title ST where ST is the string terminator (ESC \ or BEL). Used by shells to display the current directory or running command in the window title bar or tab header.

Supported by 5 of 6 backends (83%)

Support Matrix

Backend	Version	Support	Notes
Alacritty	0.26.0	✓ yes
Kitty	0.40.0	✓ yes
vt100	0.1.0	✓ yes
WezTerm	0.1.0-fork.5	✓ yes
xterm.js	5.5.0	✓ yes
Ghostty	1.3.1	~ partial	Title not exposed via native Zig API

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