markdown-to-mrkdwn
A library to convert Markdown to Slack's mrkdwn format
What it is and what it does
markdown_to_mrkdwn is a lightweight converter that transforms standard Markdown syntax into Slack's mrkdwn format. It handles the full range of common Markdown elements—headings, bold and italic text, ordered and unordered lists, task lists, tables, code blocks, blockquotes, links, and horizontal rules—and maps them to their Slack equivalents. The library has no external dependencies and is designed to preserve code block contents without conversion, making it safe for technical documentation and code examples.
You use it by instantiating a SlackMarkdownConverter, then calling its convert() method on a Markdown string to get back properly formatted mrkdwn ready to post to Slack. The package also exposes a plugin system allowing you to register custom line-based or regex-based transformations before or after the core conversion, giving you flexibility to extend or customize the output for specific use cases.
Use it for:
- Automatically format Markdown documentation or release notes into Slack messages without manual reformatting.
- Convert user-generated Markdown content (e.g., from a web form or editor) into Slack-compatible format before posting.
- Build Slack bots or integrations that accept Markdown input and deliver properly formatted Slack messages.
- Extend the converter with custom plugins to mask sensitive data (e.g., email addresses) or apply domain-specific formatting rules.
- Preserve code snippets and technical content when migrating documentation from Markdown-based systems into Slack.
Worth the install?
AI-flagged interpretation of the facts on this page — verify before relying
Converts standard Markdown to Slack's mrkdwn format, handling headings, text formatting, lists, tables, code blocks, links, and other common Markdown elements for use in Slack messages.
Yes. The package solves a real problem (Markdown-to-Slack conversion) with zero dependencies, active maintenance, no known vulnerabilities, and a permissive MIT license. It is straightforward to install and use. Install it if you need to programmatically format Markdown for Slack; skip it only if you have no Slack integration needs.
Install
markdown-to-mrkdwn on PyPI
pip
pip install markdown-to-mrkdwnuv
uv add markdown-to-mrkdwnpoetry
poetry add markdown-to-mrkdwnInstalling markdown-to-mrkdwn
Before you install
Low friction install with no runtime dependencies. The package is actively maintained with a recent release and no known vulnerabilities.
License in practice
MIT License permits free use, modification, and distribution with minimal restrictions—suitable for both open-source and commercial projects.
Quickstart
pip install markdown-to-mrkdwn
from markdown_to_mrkdwn import SlackMarkdownConverter
converter = SlackMarkdownConverter()
mrkdwn = converter.convert("# Heading\n**Bold**\n- List item")
print(mrkdwn)
Requires Python 3.6 or higher.
Verify before relying
- Whether the plugin system (function and regex plugins) is stable and documented for production use.
- Performance characteristics when converting very large Markdown documents.
- Compatibility with all Slack Block Kit formatting edge cases beyond the documented conversion table.
Package facts
| License | MIT License (permissive) |
| Python support | supports the current Python release (>=3.6) |
| Install friction | low — pure-Python wheel |
| Runtime dependencies | none |
| Maintenance | actively maintained — 79 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 2,972,401/month — #2,804 on PyPI (30-day window, as of 2026-08-14) |
| Known vulnerabilities | none known (OSV.dev, checked 2026-08-14) |
Evidence: markdown_to_mrkdwn-0.3.3-py3-none-any.whl
Tags
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