What it does
Zero is an email app you can run on your own server instead of relying only on a big email company. It connects to existing email accounts such as Gmail and Outlook and shows them in one unified inbox.
Its makers describe it as AI-driven, using AI agents and language models to help with email. They say the app itself does not track or sell your data, but note that connected outside services follow their own rules.
Who it's for
Technically minded people who want a self-hosted email app with AI features.
Can I use it without coding?
Developers only. Setting it up needs Node.js, Docker, a database and your own Google sign-in credentials. New to this? Start here.
Can I run it?
- Runs on
- Server, Web browser
- Computer
- An ordinary computer is fine
- API key
- Not needed
Try it
Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?
Before you install
- Only download from the official GitHub page. Copies with similar names exist for many popular projects.
- License (MIT): Very permissive: free to use, change and share, including for business.
- More on staying safe