talkki

Talkki is a fictional open-source platform and protocol for decentralized communication, designed to enable private messaging, voice and video calls, and microblog-style updates across devices and servers. It emphasizes user data ownership, end-to-end encryption, and federation between independent servers.

In the fictional setting, development began in the early 2020s by an international volunteer community. A first public prototype appeared in 2021, with ongoing releases and improvements driven by community contributions and peer review.

Talkki operates on a federated model in which clients connect to independent Talkki servers. The Talkki Protocol governs client-server and inter-server communication, allowing cross-server messaging and interoperability with other federated systems. Available clients cover mobile and desktop platforms, and the software supports private conversations, group chats, file sharing, voice and video calls, and microblog-style status updates. The design includes metadata minimization and user-controlled data retention, with options for self-hosting to retain control.

Governance and reception: Development is community-led, with governance based on open discussion, reproducible builds, and merit-based decision making. The software is released under an open-source license. Talkki has attracted attention in privacy-oriented communities as an alternative to larger federated networks, though practical adoption depends on ecosystem maturity and tooling.

See also Matrix, ActivityPub, and the Fediverse.