Markdown to Slack Converter: Translate Markdown Syntax to Slack mrkdwn Instantly
Engineers write documentation, release notes, and incident reports in Markdown every day. But when they need to share that content in Slack, the formatting breaks. Asterisks appear literally, headings show as plain text, and code blocks lose their structure.
Our Markdown to Slack Converter solves this with a single paste. It translates standard Markdown syntax to Slack's mrkdwn format in real-time, so your content renders correctly in Slack channels, DMs, and bot messages.
The core conversion rules between Markdown and Slack mrkdwn:
Common Use Cases
Release notes - Convert your CHANGELOG.md entries to Slack-formatted announcements in your #releases channel
Incident reports - Share formatted P1/P2 incident write-ups directly in #incidents without losing structure
PR descriptions - Copy GitHub pull request descriptions and paste them into Slack with proper bold, code, and list formatting
Slack bot messages - Generate mrkdwn for use in Slack API Block Kit text fields and incoming webhooks
Slack mrkdwn vs Standard Markdown
Slack's mrkdwn format was designed before CommonMark was standardized, so it differs in key ways:
- Bold: Markdown uses **double asterisks**, Slack uses *single asterisks*
- Italic: Markdown uses *single asterisks*, Slack uses _underscores_
- Strikethrough: Markdown uses ~~double tildes~~, Slack uses ~single tildes~
- Links: Markdown uses [text](url), Slack uses <url|text> (reversed order)
- Slack does not support headings, tables, or images in mrkdwn
Practical Examples
Release notes conversion
- 1.Input: ## v2.4.0 with **bold** changes and `code` refs
- 2.Output: *v2.4.0* with *bold* changes and `code` refs
- 3.Result: Renders correctly in Slack #releases channel
Slack webhook payload
- 1.Input: Markdown incident summary with lists and links
- 2.Output: mrkdwn text ready for Block Kit text field
- 3.Result: Structured Slack alert with bullet points and clickable links
Frequently Asked Questions
What is Slack mrkdwn?
Slack mrkdwn is Slack's own lightweight markup language, similar to Markdown but with different syntax rules. Bold uses *asterisks* instead of **double asterisks**, italic uses _underscores_, strikethrough uses ~tildes~, and links use the
Why can I not just paste Markdown into Slack?
Slack does not render standard Markdown. If you paste **bold** into Slack, it will appear as literal asterisks. Slack uses its own mrkdwn format, so text must be converted before it renders correctly.
What Markdown elements are converted?
The tool converts: headings (# H1 through ###### H6) to *bold*, **bold** to *bold*, *italic* and _italic_ to _italic_, ~~strikethrough~~ to ~strike~, inline code to `code`, fenced code blocks to ```blocks```, [links](url) to
Does it support nested formatting?
Basic nesting is supported. Bold inside italic and vice versa will convert. However, deeply nested structures or HTML inside Markdown are not fully supported since Slack has limited formatting capabilities.
Can I use this for Slack bot messages?
Yes. The output is valid Slack mrkdwn that works in Slack's Block Kit text fields, incoming webhooks, and any Slack API message payload using the mrkdwn field type.
Does the tool support tables?
Markdown tables are not converted since Slack does not support table rendering in mrkdwn. For tabular data in Slack, consider using a code block for monospace alignment.
Is my text sent to any server?
No. All conversion logic runs entirely in your browser using JavaScript. Your text never leaves your device.
What happens to Markdown that has no Slack equivalent?
Elements without a Slack equivalent (like HTML, tables, or image syntax) are passed through as-is. They will appear as plain text in Slack without any special formatting.