In simple English
Zero is a web app for reading and writing email. It connects to your existing email accounts like Gmail or Outlook. It adds artificial intelligence features to help you sort messages. You can run it on your own server to keep your data private. It is free to download and use.
What it is
Zero is an open-source email client built with Next.js and TypeScript that supports self-hosting and unified inbox management. It integrates with external email services and includes support for artificial intelligence agents.
What it is good for
Solo builders who want an open-source email interface with a modern layout, or anyone who wants to run their own email frontend and connect multiple accounts into one place.
- Brings multiple email accounts into a single inbox.
- Supports self-hosting for complete control over your app setup.
- Open-source code allows you to inspect and modify how it works.
- Requires technical knowledge to configure multiple API keys and environment variables.
- Needs Docker (a way to run a program inside its own sealed box, so it cannot break anything else on your server) and Node.js installed on your system.
- Google OAuth configuration requires exact redirect URIs and test user setup.
The standard web interfaces for Gmail or Outlook
PostgreSQL
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git clone https://github.com/Mail-0/Zero.git cd Zero pnpm install pnpm docker:db:up pnpm nizzy env pnpm nizzy sync pnpm db:push pnpm dev