Free, open-source alternatives to HackMD

Collaborative Markdown notes. 3 apps you can run yourself instead of HackMD, sorted by how well they replace it. Each one is open source, so your data stays with you.

  1. HedgeDocBest match

    Realtime collaborative markdown notes on all platforms, formerly known as CodiMD and HackMD CE.

    7.5k starsAGPL-3.0Updated 22 September 2026
  2. Etherpad

    Highly customizable online editor providing collaborative editing in real-time.

    18.6k starsApache-2.0Updated 12 October 2026
  3. CryptPad

    Collaboration suite built to enable collaboration, synchronizing changes to documents in real time.

    8k starsAGPL-3.0Updated 12 October 2026

Side by side

AppStarsLicenseActivityRuns on
HedgeDoc7,479AGPL-3.0Docker, Node.js
Etherpad18,586Apache-2.0Node.js, Docker
CryptPad8,005AGPL-3.0Node.js, Docker

Why replace HackMD?

HackMD works, but your data lives in someone else's account, the price can change at any time, and features can disappear. An open-source app you run yourself is yours: you choose where it runs, who can see the data, and when to update.

Questions

What is the best free alternative to HackMD?

HedgeDoc is the closest open-source replacement for HackMD in our list. Etherpad and CryptPad are worth a look too, depending on what you need.

Can I self-host an alternative to HackMD?

Yes. All 3 apps on this page are open source and can run on your own server, usually with Docker, or on a managed host that installs them for you.