AstroNotes

Free Open-Source Markdown Notes App, Private and Offline

A simple, private notes app that helps you capture ideas fast, organize them by folder, and write in Markdown. Your notes stay on your computer, it works without internet, and there are no accounts or ads. Completely free and open source.

View on GitHub

Why AstroNotes

  • Private by design, notes stay on your device, not the cloud.
  • Offline first, write anywhere, even with no connection.
  • Free and open source, no subscriptions, no hidden costs.
  • No accounts and no ads, just you and your notes.

What you can do

  • Write in a clean editor with Markdown formatting
  • Organize notes in folders for work, personal, and ideas
  • Autosave, fast search, and a distraction-free layout
  • Use it on desktop or mobile in the browser
  • These basics are described in the README.

Who it is for

People who want simple notes without tracking, travelers who need offline access, and anyone who prefers owning their data.

What you get

  • Simple version, runs in the browser, local storage, minimal UI
  • Complete version, same experience plus local database backup and multi-browser access on your machine
Get AstroNotes on GitHub

FAQ

Is AstroNotes really private?

Yes. Notes are stored locally on your device, there is no account, no tracking, and it works offline.

Can I run it without Docker?

Yes. Run the frontend only, or run the full stack with Go backend and Docker for local backup, both are described in the README.

Does it cost anything?

No, it is free and open source, donations are optional.

Support the project

AstroNotes is open source and free. If it helps you, you can support development.

Buy Me a CoffeePayPal