source team messenger with privacy at its core
Chatto is a new open-source team messaging platform designed for self-hosting with a focus on user privacy. It utilizes per-user encryption keys and crypto-shredding upon account deletion to ensure data remains inaccessible even from backups.
Why it matters
As organizations move away from commercial platforms, self-hosted, privacy-centric tools provide a viable alternative for maintaining data sovereignty and security.
Chatto: Open-source team messenger with privacy at its core Teams that want their group chats off commercial platforms have a growing menu of self-hosted options. Chatto joined that group when its developer released the code under an open-source license and posted binaries for anyone to run on their own hardware. The software aims at the same ground as the large team messaging services, and it keeps message data on infrastructure the operator controls.
Installation runs through a single executable. An operator drops the binary onto a machine, runs it, and gets a working chat server that serves its own web frontend. Builds exist for Linux on x86_64 and ARM64, macOS, and Windows. A basic setup needs no separate database, and larger deployments scale out with Docker Compose or Kubernetes.
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