Colibri — Colibri is an open source chat platform built on the ATprotocol for communities big and small.
Colibri
Colibri
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Colibri is an open source chat platform built on the ATprotocol for communities big and small.

Colibri is an open source chat platform built on the ATprotocol for communities big and small.

Colibri is an open source chat platform built on the AT protocol for communities big and small.

Because Colibri is built on the AT Protocol, your community chats are public and visible to everyone by default. This open ecosystem fosters transparency, makes it easy for new members to discover your community, and ensures your data is never locked behind a walled garden.

We are closely following the protocol's development, and as soon as it supports secure private data, we will implement private spaces so you can have the best of both worlds!

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Reviews
(2)
5.0

Awesome app 🔥

May 2, 2026

This is an amazing addition to ATproto. I can see a future where communities rise on Colibri because it is more accessible as Discord IMHO, as the data is public. Can't wait for a server discoverability feature so people can find and join others vision 🤌

Apr 29, 2026
Mentions

I'm very interested in both @roomy.space and @colibri.social. Taking inspiration from matrix, It might be interesting to have a discord-bridge bot/tool to ease transition of tools. Messages on discord get crossposted to otherapp via a bot. And via atproto should be super easy.

7/19/26, 9:34 PM

Wow this @colibri.social look extremely slack-like but on public ATProto messaging infra. Very cool. Comprehensive lexicons but no overt bridging fields that I can see.

5/16/26, 3:51 PM

@colibri.social's work-in-progress lexicons are probably closer to what things will be once we get fully on-protocol. next.colibri.social/docs/specifi...

5/16/26, 2:03 PM