Zero
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Zero has 10.7k stars on GitHub. It has been forked 1.3k times. Zero is written mainly in TypeScript. It has been in active development since 2025. Zero is available under the MIT license. Its main topics are ai, email, privacy, security.
What is Zero?
Experience email the way you want with Mail0 – the first open source email app that puts your privacy and safety first. Join the discord: https://mail0.link/discord
Is Zero open source?
Zero is an open-source project. It is released under the MIT license.
Is Zero free?
Yes. Zero is free and open source — you can use, modify and self-host it.
What license does Zero use?
Zero is available under the MIT license.
What language is Zero written in?
Zero is written mainly in TypeScript.
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Measured from GitHub topics shared by both projects, weighted by how rare each topic is.