████████╗███████╗███████╗███████╗███████╗██████╗ █████╗ ███████╗ ╚══██╔══╝██╔════╝██╔════╝██╔════╝██╔════╝██╔══██╗██╔══██╗██╔════╝ ██║ █████╗ ███████╗███████╗█████╗ ██████╔╝███████║███████╗ ██║ ██╔══╝ ╚════██║╚════██║██╔══╝ ██╔══██╗██╔══██║╚════██║ ██║ ███████╗███████║███████║███████╗██║ ██║██║ ██║███████║ ╚═╝ ╚══════╝╚══════╝╚══════╝╚══════╝╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝
"Your voice matters — even when no one knows your name."
Every platform you use today has an owner. Someone who reads your posts before you publish them. Someone who decides what you can say, who you can reach, and whether your account exists tomorrow.
Tesseras is a peer-to-peer social network with no central server, no accounts to ban, and no algorithm deciding what you see. You publish markdown content directly to an overlay network. Others discover it through a distributed hash table — no middleman, no moderation queue, no terms of service.
You can be pseudonymous, with a cryptographic identity that proves authorship without revealing who you are. Or you can be fully anonymous — no identity at all, just words.
Nodes connect directly over QUIC, forming a self-organizing network. Content is addressed by its BLAKE3 hash — immutable and verifiable. Communities are cryptographic zones, not corporate property. Names are local petnames, not a global registry someone controls.
There is no blockchain. No tokens. No incentive layer. Nodes relay content for each other because that is how the network works.
A tessera is a small piece of stone or glass used to compose a mosaic. Individually simple. Individually durable. But together, they form something larger. Some Roman mosaics made of tesserae are still intact after two thousand years.
Each post in the network is a tessera — a small, self-contained fragment. The network is the mosaic, assembled piece by piece, by many hands.
Tesseras doesn't exist in a vacuum. It builds on decades of work by projects that proved decentralization is not just possible — it works.
Join us on Libera.Chat in the #tesseras channel (webchat).
File bug reports and feature requests on the ticket tracker.
ISC License Copyright (c) 2025-2026 Tesseras Contributors <contact@tesseras.net> Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.