Comment or uncomment a line keyboard shortcut in 15 apps
Comment or uncomment a line has a documented keyboard shortcut in 15 apps here, among them Android Studio, Chrome DevTools, DBeaver, Eclipse IDE. The most common keys are Ctrl + / on Windows and Cmd + / on a Mac.
Keys on this page were last checked against their sources on September 14, 2026.
| App | Windows | Mac | What it does |
|---|---|---|---|
| Android Studio | Windows Ctrl + / | Mac Cmd + / | Comment lines with line comments |
| Chrome DevTools | Windows Ctrl + / | Mac Cmd + / | Toggle a line comment |
| DBeaver | Windows Ctrl + / | Mac Ctrl + / | Add or remove a single line comment |
| Eclipse IDE | Windows Ctrl + / | Mac Not documented | Toggle a line comment |
| Godot Engine | Windows Ctrl + K | Mac Cmd + K | Toggle a comment |
| IntelliJ IDEA | Windows Ctrl + / | Mac Cmd + / | Toggle a line comment |
| Notepad++ | Windows Ctrl + Q | Mac Not documented | Toggle a single line comment |
| Power BI Desktop | Windows Ctrl + / | Mac Not documented | Comment or uncomment a line |
| RStudio | Windows Ctrl + Shift + C | Mac Cmd + Shift + C | Comment or uncomment lines |
| SQL Server Management Studio | Windows Ctrl + K then Ctrl + C | Mac Not documented | Comment out the selection |
| Sublime Text | Windows Ctrl + / | Mac Cmd + / | Toggle a line comment |
| Visual Studio | Windows Ctrl + / | Mac Not documented | Toggle line comments |
| Visual Studio Code | Windows Ctrl + / | Mac Cmd + / | Toggle a line's comment state |
| Visual Studio Code | Windows Ctrl + K then Ctrl + C | Mac Not documented | Add comment |
| Visual Studio Code | Windows Ctrl + K then Ctrl + U | Mac Not documented | Remove comment |
What most apps settled on for Comment or uncomment a line
On Windows, Ctrl + / is the combination in 8 of the 13 apps here that document one. On a Mac, it is Cmd + / in 5 of 8. 5 apps go their own way on Windows, and the table above is where to find them.
Where the table is deliberately empty
7 apps here publish no Mac key for Comment or uncomment a line, so those cells are left blank. A blank there is a gap in that maker documentation for Comment or uncomment a line, not an oversight here, and it is never filled by converting the other system.
If the keys for Comment or uncomment a line do nothing
The 15 apps listed here each decide this for themselves, so the first thing to check is that you are reading the row for the app you are actually in, and the column for your system. After that, check the app version, since comment or uncomment a line is the kind of command makers move between releases. Report a correction
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