Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.
from $49.99/mo
About HackMD
What is HackMD?
HackMD is a real-time collaborative Markdown workspace where teams and AI agents can write, edit, and share knowledge together. It solves the problem of disconnected workflows: your team refines ideas in one place, and agents can access, contribute, and stay aligned from the same source of truth. Every edit, comment, and revision is tracked with version history, so nothing gets lost.
Who is it for?
HackMD is built for development teams, communities, open-source projects, hackathons, study groups, and research groups who need a shared, version-controlled workspace. It's ideal for technical documentation, project planning, and collaborative writing. It is NOT designed for real-time rich-text editing (like Google Docs) or project management with task boards — it excels at Markdown-based knowledge building.
Real use cases
Teams use HackMD to collaborate on API documentation, code walkthroughs, and RFCs with live multiple cursors and inline comments. Communities run hackathons with public notes and shared workspaces. AI agents can pull context from note history to generate drafts and code, then contribute back to the same workspace for human review.
Key features
- Real-time editing — Multiple cursors, live collaboration with your team.
- Version history — Every edit tracked and recoverable; unlimited with paid plans.
- GitHub integration — Push notes to GitHub repos (20 pushes/mo on Free, unlimited on Prime).
- Comments & mentions — Inline and page commenting to discuss changes.
- Suggest edit — Team members can propose changes without directly editing.
- Templates & embeds — Custom templates and slide mode for presentations.
- Full-text search — Find any note quickly (available on Prime and Enterprise).
SaaSpartout Score
7.5
/10
Editorial score from our review methodology — not user ratings.
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HackMD Pricing
HackMD pricing: from $0.
For comparison: the median starting price in Developer Tools is $19.99/month, measured across 301 tools we track. See the full SaaS Pricing Index →
Free — $0
Unlimited notes, up to 3 teammates, 3 invitees, 3 custom templates, 20 GitHub pushes/month, GitHub integration, 1MB per image upload. Free forever.
Prime — $5 per seat/month (billed annually)
Everything in Free, plus: full-text search, 20MB per image upload, PDF export, unlimited invites, unlimited versions, unlimited GitHub pushes, unlimited custom templates, 20K API calls/month.
Enterprise — Custom pricing
Everything in Prime, plus: SSO (SAML/LDAP), custom domain, custom homepage, GitLab integration, role-based access control, custom payment solutions, dedicated account manager. Request a demo.
Try the Free plan with no time limit — no credit card required.
Frequently asked questions
Is HackMD free?
Yes, HackMD offers a Free plan with unlimited notes, up to 3 teammates, and 20 GitHub pushes per month. Paid plans (Prime at $5/seat/mo and Enterprise) add more features.
How much does HackMD cost?
HackMD is free to start. Prime is $5 per seat per month (billed annually) for teams up to any size. Enterprise has custom pricing with additional security and admin features.
Who is HackMD best for?
HackMD is best for development teams, open-source communities, hackathons, and research groups who need real-time Markdown collaboration with version control and AI agent integration.
Can I use HackMD with AI agents?
Yes. Every HackMD note is Markdown, making it easy for AI agents to read, write, and contribute. Agents can pull context from note history and add content back into the workspace.
Does HackMD integrate with GitHub?
Yes. HackMD has built-in GitHub integration. Free plan includes 20 pushes per month; Prime and Enterprise offer unlimited pushes.
What are alternatives to HackMD?
Popular alternatives include Notion, Coda, and GitHub Wikis. HackMD distinguishes itself with real-time Markdown editing, version history, and native AI agent support.
