Lock the screen
Press Ctrl + Alt + L to lock the screen in WhatsApp. On a Mac, press Cmd + Ctrl + L instead. It works in the browser version.
Where it works: Anywhere
Every documented variant
| System | Environment | Keys |
|---|---|---|
| Mac | Web app | CmdCtrlL |
| Windows | Web app | CtrlAltL |
Where this comes from
About keyboard shortcuts - WhatsApp Help Center
Documentation checked on 2026-09-14. That is a documentation review, not a test run inside the application.