GitHub – bloom42/markdown-ninja: Markdown-first CMS for bloggers, minimalists and startups. Open Source alternative to Substack, Mailchimp and Netlify

Markdown Ninja is the easiest way to publish Markdown-based websites and newsletters. The days of hacking a static site generator, a broken theme, a complex CI/CD pipeline and a cloud platform with unlimited billing to publish a website are long gone!

You can now publish your blog, documentation website or newsletter with one command:

$ docker run -i --rm -e MARKDOWN_NINJA_API_KEY=[YOUR_API_KEY] -v `pwd`:/mdninja ghcr.io/bloom42/markdown-ninja publish

Get started in 2 minutes

For usage documentation see https://markdown.ninja/docs

For development documentation see the docs folder

We take Markdown Ninja’s security and our users’ trust very seriously. If you believe you have found a security issue in Markdown Ninja, please responsibly disclose by contacting us: https://markdown.ninja/contact

Copyright (c) 2025 Arcane Services

Code is released under the GNU Affero General Public License v3.0 (AGPL v3.0) license. See LICENSE.txt for details.

Documentation and assets are released under the Creative Commons BY-SA 4.0 license (CC BY-SA 4.0) license. See LICENSE_CC-BY-SA-4.txt and https://creativecommons.org/licenses/by-sa/4.0 for details.

If you have special licensing needs, please feel free to contact us: https://markdown.ninja/contact

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