HackMD

Build a community with open collaboration.

Concept

Share all document / knowledge / information with your community.

Create a note

Create a note

Open collaborate

Open collaborate

Share and track

Share and track

Empowering community

  • Real-time collaboration at scale: brainstorming with the community.
  • Turn white papers and API specs into living documents.
  • Create dedicated team space for each open source project.
Empowering community
Be in the know

Be in the know

  • Bring all community discussions into one place.
  • Get notified when the SINGLE source of truth changes.
  • Search or roll back to any previous version.

Features

Write in markdown natively

Markdown

Make a slide deck with a snap

Slide Mode

Collect any note into a book

Book Mode

GitHub / GitLab integration, instant access

HackMD-it

Create math formulas and UML with text

MathJax & UML

Drag and drop image, auto-upload

Upload image

Export to PDF, md, or html files

Take it with you

Manage and search notes with tags

Manage with tags

Trusted By

Plans

Free

Start open collaboration now.

  • Unlimited notes
  • Unlimited collaborators
  • Email notification
  • Use without login
Hot

Business Plan

Customized access control for your use case.

  • Single Sign-On or SAML login
  • Role-based access control
  • Unlimited team space
  • Private image storage
Free

Conference Plan

Help you share knowledge is our mission.

  • Customized URL to your shared notes
  • Team space for conference hosts
  • Best practice training and sharing
  • More customized options up to you

Join 160,000+ active users! Come and love it