How can I make CTRL + / toggle a comment in Visual Studio, as it does with XCode and Eclipse?

10 Answers 10


Here is a plugin to have the almighty "Toggle Comment" command...

1- Download and Install > https://marketplace.visualstudio.com/items?itemName=munyabe.ToggleComment

2- Restart VS

3- Go to "Tools > Options... > Environment > Keyboard"

4- Search for the command "ToggleComment" & Bind it to your favorite key

5- Enjoy

(Thank you, I had gave up but finally found this easy way to do it ;D)

  • 2
    Doesn't work in 2019 – Herrgott May 31 '20 at 9:40
  • 4
    The secret to making this work was selecting TextEditor rather than global before pressing Assign. – Gulzar Jul 16 '20 at 12:53
  • @Herrgott Support for 2019 was supposedly added in v1.8 – Camp bell Aug 2 '20 at 22:41
  • @Gulzar confirmed, but what a stupid solution – mjr Aug 7 '20 at 15:55

You can't make it toggle without going into either a macro or other VS extension.

However, I always setup VS to comment with Ctrl + / and uncomment to Ctrl + Shift + /

You can customize the keyboard shortcuts by going int the "Tools" menu and selecting "Options". Then select "Keyboard" from the "Environment" branch. From there you can bind the Edit.CommentSelection and Edit.UncommentSelection commands to whichever keyboard shortcuts you'd like.

  • This should be the accepted answer, and still works in Aug 2020 – olonge Aug 29 '20 at 20:18

If you have ReSharper installed (and using VS without it is/was tedious), you can assign a single key to the command ReSharper.ReSharper_LineComment.

For instance, I bind the keyboard shortcut Ctrl-K, Ctrl-C to the command, and then if I use it on a line that is uncommented, it comments it, and if the line is commented, it will uncomment it.

enter image description here

  • 3
    so to directly answer the original question, assign CTRL + / to ReSharper.ReSharper_LineComment – Chin Mar 9 '16 at 1:59

Toggle single line comment and toggle block comment commands have been added in VS 2019 for C#

You can change the shortcut for these commands to whatever you want in Tools -> Options -> Environment -> Keyboard, search for Edit.ToggleBlockComment or Edit.ToggleLineComment.

  • 3
    Oddly, they do not work, not even the defaults, in VS 16.2.2. The error "The key combination (Ctrl-K, Ctrl-/) is bound to command (Toggle Line Comment) which is not currently available." appears at the bottom in the status bar for the default keystrokes, and it doesn't even do that much if you use a custom one. For now, I'll be giving the "Toggle Comment" plugin a try. – MartyMacGyver Aug 19 '19 at 6:03
  • 1
    This did work for me and if you have VS 2019 is the best solution, actually, is THE solution. VS 12.2.5 – Norcino Oct 4 '19 at 14:44
  • this should be the contemporary answer for VS 2019. – orion elenzil Oct 28 '20 at 18:33

Ctrl-K and Ctrl-C will comment one or more selected lines.

Ctrl-K and Ctrl-U will uncomment one or more selected lines.

You can get toolbar icons that will do this by adding the "Text Editor" toolbar. In the toolbar area right-click and select "Text Editor" This will add a strip of icon buttons like this:

enter image description here

You can customize this strip by selecting the dropdown at the end of the ribbon:

enter image description here

To edit the keyboard combination go to Tools-Options and select Keyboard under the Environment tree. Here you can change the keys used to trigger the Comment and Uncomment actions:

enter image description here

  • In a default install this shortcut will just comment, not uncomment. – heavyd Feb 14 '13 at 16:28
  • Clarified key combinations – Brad Patton Feb 14 '13 at 16:39
  • Edit.CommentSelection doesn't show up in VisualStudio 2015 community edition. – allan ruin Jul 30 '15 at 14:53

If you're using Resharper, there is an almost identical alternative:

Right Alt+/

By using this single shortcut, you can simply toggle between commenting/uncommenting code.


Apparently, VS2019 has finally introduced alternative keyboard mapping schemes. They're available at Options -> Environment -> Keyboard. I've been looking for a solution for toggle comment shortcut problem and I got a whole surprise package. This is more than I wanted.

Keyboard mapping options in vs


I don't know if it is the same in 2012 but in 2015 you can.

Go to Tools > Options > Environment > Keyboard

Either, find "VisualD.ToggleCommentSelection" or
Search for "comment" and the bottom option should be "VisualD.ToggleCommentSelection"

Snip showing how to set toggle comment shortcut.


In Visual Studio Code 2019, this can be done by:

  1. Enter hotkeys in the IDE search field and click Change hotkeys and keyboard shortcuts.
  2. In Show commands containing, search for and select EditorContextMenus.CodeWindow.GenerateDocumentationComments.
  3. Click Remove on the right side of Shortcuts for selected command, where ctrl+/ is currently selected.
  4. In Show commands containing, search for and select Edit.ToggleLineComments.
  5. Click the Press shortcut keys box and press ctrl + /.
  6. Click Assign to assign the new hotkey.

Note that unbinding the already existing function for ctrl + / is necessary for this to work.

  • Steps 1-3 are sufficient in latest VS2019, which has ctrl + / as the Global default for Edit.ToggleLineComments. – victor Nov 18 '20 at 15:56

In visual studio 2019 this works by default using Ctrl + K and then Ctrl + /

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