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About the developer

7.5K Stars 912 Forks GNU Affero General Public License v3.0 2.9K Commits 290 Opened issues


CodiMD - Realtime collaborative markdown notes on all platforms.

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CodiMD lets you collaborate in real-time with markdown. Built on HackMD source code, CodiMD lets you host and control your team's content with speed and ease.


Table of Contents


HackMD helps developers write better documents and build active communities with open collaboration. HackMD is built with one promise - You own and control all your content: - You should be able to easily download all your online content at once. - Your content formatting should be portable as well. (That's why we choose markdown.) - You should be able to control your content's presentation with HTML, slide mode, or book mode.

CodiMD - The Open Source HackMD

CodiMD is the free software version of HackMD, developed and opened source by the HackMD team with reduced features (without book mode), you can use CodiMD for your community and own all your data. (See the origin of the name CodiMD.)

CodiMD is perfect for open communities, while HackMD emphasizes on permission and access controls for commercial use cases.

HackMD team is committed to keep CodiMD open source. All contributions are welcome!


You would find all documentation here: CodiMD Documentation


If you want to spin up an instance and start using immediately, see Docker deployment. If you want to contribute to the project, start with manual deployment.


CodiMD is highly customizable, learn about all configuration options of networking, security, performance, resources, privilege, privacy, image storage, and authentication in CodiMD Configuration.

Upgrading and Migration

Upgrade CodiMD from previous version? See this guide
Migrating from Etherpad? Follow this guide


Join our contributor community! Start from deploying CodiMD manually, connecting to your own database, learn about the project structure, to build your changes with the help of webpack.

Contribution and Discussion

All contributions are welcome! Even asking a question helps.

| Project | Contribution Types | Contribution Venue | | ------- | ------------------ | ------------------ | |CodiMD|:couple: Community chat|Gitter| ||:bug: Issues, bugs, and feature requests|Issue tracker| ||:books: Improve documentation|Documentations| ||:pencil: Translation|POEditor| ||:coffee: Donation|Buy us coffee| |HackMD|:question: Issues related to HackMD|Issue tracker| ||:pencil2: Translation|hackmd-locales|

Browser Support

CodiMD is a service that runs on Node.js, while users use the service through browsers. We support your users using the following browsers: - Chrome Chrome >= 47, Chrome for Android >= 47 - Safari Safari >= 9, iOS Safari >= 8.4 - Firefox Firefox >= 44 - IE / Edge IE >= 9, Edge >= 12 - Opera Opera >= 34, Opera Mini not supported - Android Browser >= 4.4

To stay up to date with your installation it's recommended to subscribe the release feed.


License under AGPL.

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