How to Use Slack Strikethrough

Edit text so others can see the changes

When communicating over Slack, you have the ability to edit your messages to make sure what you're sending is correct. But what if you want the recipients to see the edits you've made? Using strikethrough is a common way to denote this, and Slack supports that too.

The below instructions will work for Slack apps on desktop (Windows, macOS, and Linux) and mobile (iOS and Android) as well as Slack for the web.

Desktop and Mobile Chat Applications

Applying Strikethrough in Slack with the Toolbar

The most straightforward way to apply strikethrough styling is using the toolbar. In the message area, highlight the text you want to strike through. Then click the Strikethrough button, which sits between the Italics and Code buttons.

The Strikethrough Button in Slack's Text Formatting Bar

If you don't have any text selected, clicking the button will still activate Strikethrough mode. This means any further text you type will have strikethrough formatting applied.

If you don't see the formatting toolbar with buttons such as Bold, Italics, etc., it's just hidden. Click the Aa button to the right-hand side of the area where you enter your messages. This will show the toolbar buttons again.

Strikethrough Text on Slack with a Keyboard Shortcut

As we all know, clicking buttons isn't necessarily the fastest way to get something done. Fortunately, Slack also provides a keyboard shortcut to apply strikethrough formatting.

If you hover over the Strikethrough button (as shown in the above screenshot) you'll notice Slack provides you with the magic combo: Ctrl + Shift + x (CMD + Shift + x on macOS). Using this combination has the exact same effect as clicking the button as it pertains to having or not having text selected.

The Strikethrough Format's Keyboard Shortcut

Place a Line Through Text on Slack with Text Markup

If you're someone who strives for maximum productivity, even a keyboard shortcut is inefficient as your fingers need to resituate on the keyboard. Instead, you can apply strikethrough formatting to text by using text markup based on Markdown.

To do this, before the text you want to strike through insert a tilde sign (~). Then insert another one at the end of the text. This is the Markdown markup for strikethrough, and you'll notice the tilde signs disappear, and the text will be formatted as Strikethrough.

Using Markdown-style markup to denote strikethrough.

Note that when you complete the markup with the second tilde they will both disappear, and the surrounded words will be formatted as rich text. If you Backspace at this point, the tilde signs won't reappear as they do in some other Markdown-style editors.

A fourth, though decidedly less efficient, way to add rich formatted text to Slack messages is to copy and paste it from other applications. For example, you can apply strikethrough formatting in Microsoft Word and paste it into Slack, where the formatting will remain intact.