How to see all tmux keybindings
Show all bindings (searchable — it opens in copy mode):
keysprefix + ?
It's searchable
The prefix ? view is a copy-mode pane: press / or ? and search it like any scrollback. prefix / then a key answers "what does this key do?" for one key at a time.
Related
Verified against tmux 3.6 · updated July 2026 · back to the full cheat sheet