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Android Studio

Comment lines with line comments

Cmd/

Mac Desktop app Android Studio default keymap

Practice this

To comment lines with line comments in Android Studio, press Ctrl + Slash. On a Mac, press Cmd + Slash instead.

Where it works: Editor

Every documented variant

Variants of this shortcut
System	Environment	Keys
Mac	Desktop app	`Cmd/`
Windows	Desktop app	`Ctrl/`

Where this comes from

Keyboard shortcuts - Android Studio - Android Developers

Documentation checked on 2026-09-14. That is a documentation review, not a test run inside the application.

The same task in other apps

Add or remove a single line comment DBeaver Ctrl + /
Toggle a line comment Chrome DevTools Cmd + /
Toggle a line comment Eclipse IDE Ctrl + /
Toggle a comment Godot Engine Cmd + K
Toggle a line comment IntelliJ IDEA Cmd + /
Toggle a single line comment Notepad++ Ctrl + Q
Comment or uncomment a line Power BI Desktop Ctrl + /
Comment or uncomment lines RStudio Cmd + Shift + C
Comment out the selection SQL Server Management Studio Ctrl + K then Ctrl + C
Toggle a line comment Sublime Text Cmd + /
Toggle line comments Visual Studio Ctrl + /
Toggle a line's comment state Visual Studio Code Cmd + /

More Android Studio shortcuts

Comment code with a block comment Cmd + Shift + /
Grow the selection to larger blocks Option + Up arrow
Shrink the selection back a step Option + Down arrow
Optimize the imports Ctrl + Option + O
Show quick fixes and intention actions Option + Enter
Reformat the code Cmd + Option + L
Auto indent the lines Ctrl + Option + I
Join lines smartly Ctrl + Shift + J

See every Android Studio shortcut

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