Delta Chat

Delta Chat is a decentralized and secure messenger app 💬 Reliable instant messaging with multi-profile and multi-device support ⚡️ Sign up to secure and interoperable chatmail relays 🥳 Interactive web apps in chats for gaming and collaboration 🔒 Audited end-to-end encryption safe against network and server attacks 👉 FOSS software, built on Internet Standards, avoiding xkcd927 :)

Website

delta.chat

Country

Not specified

End-to-End Encryption

Yes

Open Source

Yes

Requires Phone Number

No

Self-Hostable

Yes

Updated

2026-05-21