Question 1

What is Slack mrkdwn?

Accepted Answer

Slack uses its own variant of Markdown called mrkdwn. The biggest differences from standard Markdown are: bold uses *single asterisks* (not **double**), italic uses _underscores_, strikethrough uses ~tildes~, and links use the angle bracket format <https://example.com|text>.

Question 2

How do I format text in Slack?

Accepted Answer

Type *bold* for bold, _italic_ for italic, ~strikethrough~ for strikethrough, `code` for inline code, and ```triple backticks``` for code blocks. Mention users with @name and channels with #channel. Use <url|text> for clickable links.

Question 3

Will my message look exactly the same in Slack?

Accepted Answer

The preview shows the expected visual rendering. Slack's actual rendering can vary slightly across clients (web, desktop, mobile), but the structure, colors, and emphasis will match.

Question 4

Is my text sent to a server?

Accepted Answer

No. The formatter runs entirely in your browser. The input never leaves your device.