Delta Chat

Delta Chat's avatar
Delta Chat
🛡️ delta_at_chaos.social@momostr.pink
npub17gpd...nrxn
Secure decentralized messaging for all major platforms and then some. Reliable and instant by using fast and secure Chatmail servers, but also compatible with classic e-mail providers. Offering chat-shared web apps for fun and collaboration, end-to-end encrypted and without any server side hosting. Security-Audited multiple times, last in 2024. #deltachat #chatmail #webxdc #FOSS #OpenPGP #p2p Website: https://delta.chat Download: https://get.delta.chat Donate: https://delta.chat/en/donate Support Forum: https://support.delta.chat
It took a while but it's shaping up nicely :) Post-Quantum Cryptography and Reliable Deletion, better known as Forward Secrecy, are going to become available in 2026 in #deltachat. For more details, including the recent #fosdem26 talk recording:
Autocrypt v2 - Post-Quantum and Reliable Deletion
Modern OpenPGP v6 certificate with post-quantum cryptography, reliable deletion, and transport-agnostic messaging for decentralized systems.
A lot of messaging systems try to reinvent the email system but many (signal, matrix, xmpp) took over one key traditional design which we actually dropped while retaining SMTP/IMAP compatibility: server-controlled identities. With #chatmail user identities are cryptographic and reside on end user devices only. Servers are only message relays and have no control over identities or chats, only perform fast message routing. See this fosdem talk by one of our lead developers