What it does
Chatto is a team and community messaging app built for self-hosting. Its homepage lists rooms that can be shaped as chat, forums, or social feeds, with built-in voice and video, role permissions, and GraphQL and NATS APIs. The repository says hosted cloud availability is still forthcoming.
Shape rooms around the conversation
Chatto's homepage describes rooms that can act as free-form chat, forums, or social feeds. A team could first decide which conversations need a fast-moving room and which need a more persistent discussion format, then assign roles and permissions for each group. Voice and video calls with screen sharing are also listed, alongside extension modules and GraphQL or NATS APIs for integrations.
Hosting is part of the choice
The project says self-hosting is available now, while its repository describes hosted cloud service as coming soon. Plan to operate the server and its data yourself if you need Chatto today. The repository identifies AGPL-3.0-or-later as the default license, with Apache-2.0 exceptions for specified components; check those boundaries before modifying or embedding code. No installation, hosted signup, or live conversation was tested.
Strengths
- Rooms can be configured for chat, forum-style discussion, or social feeds.
- The site lists built-in voice and video calls with screen sharing, plus role permissions.
- GraphQL and NATS APIs are offered for integrations.
Watch out for
- The repository says managed cloud hosting is still forthcoming, so current use requires self-hosting.
- The project says it is not accepting outside code contributions at this time.
Best for
- Technical teams that want to operate their own team-chat server
- Groups that want configurable rooms for chat, forums, and social-style updates
Sources
- Chatto - Self-hostable team chat (Oct 25, 2026)
- chattocorp/chatto repository README (Oct 25, 2026)