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Ideas grow better together.

HedgeDoc (formerly known as CodiMD) is an open-source, web-based, self-hosted, collaborative markdown editor.

You can use it to easily collaborate on notes, graphs and even presentations in real-time. All you need to do is to share your note-link to your co-workers and they’re ready to go.

Read the install guide Try the demo

Our core features


You don’t need extra software. The editor runs in your browser.


Stay in control of your data. Keep it on your server.

Real-time collaboration

Collaborate in real-time with friends, family and colleagues.

Presentation mode

Use HedgeDoc to build and present slides in markdown. Powered by reveal.js!

Graphs & diagrams

HedgeDoc supports many types of graphs, diagrams and embedded content.

Easy to use permission system

Manage permissions of your notes with a simple dropdown selection.


Revisions keep track of changes to your notes and even let you revert to any older version.

Low system requirements

HedgeDoc doesn’t need much resources. It even runs smooth on a Raspberry Pi!

Let’s get it started!

Installing HedgeDoc on your server is easy! We provide a ready to use bundle and a docker image. For details, take a look at our install guide.

Read the install guide

Screenshot of HedgeDoc 1.7.1

Try the demo.

Why should you use something you don’t know, right? Head over to our demo page and test it out. Try it! It’s free! Please read the information about the reliability of the demo.

Visit the demo

CodiMD is gone.

Wasn’t it called CodiMD?

Yes, this project was formerly known as CodiMD, but in 2020 we decided to rename our project to HedgeDoc to avoid confusion with another project of the same name.

Read the full story

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Stay up to date.

We post news and events on a regular base on our social media. Follow us on


Read the docs.

How do I configure OAuth? Can I restrict edits to logged in users? Read our documentation or the FAQ and make your HedgeDoc instance fit your use case perfectly.

Read the documentation

Frequently Asked Questions

Some questions like “Why was the PDF Export feature removed?” were asked more often than others. We have collected the answers on our FAQ page.

Read the FAQ

FOSS and community driven.

The HedgeDoc source code is available on GitHub and licensed under AGPL 3.0. Everything is open source and free as in free speech. Read it, understand it, help us to improve it!

Visit our GitHub repository

Contact us, Discuss with us, Ask us.

We are always open for improvements, wishes and discussions. You can join our chat room on Matrix or open a topic in our Discourse.

Join our Matrix room Visit our Discourse

Help us with translations.

¿Hablas español? Kan du norsk? 你会说中文吗? tlhIngan Hol Dajatlh’a’? You don’t have to be a programmer to improve HedgeDoc. If you speak another language than english, then you can help us with translations.

Visit POEditor

Meet our Team.

Behind the scenes many many volunteers are working on this project. Come and meet our core development team!

Visit the team page