esl/MongooseIM

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1750 stars · 440 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

MongooseIM is a robust, scalable XMPP messaging server built in Erlang, designed for large enterprise instant messaging installations. It is fault-tolerant, supports clustering across multiple machines, and accepts client sessions over XMPP, REST API, SSE, WebSockets, and BOSH.

Use cases

• run a self-hosted chat server for my app
• scale an XMPP messaging backend to millions of users
• build an enterprise instant messaging platform
• add real-time messaging with websocket support to my service
• cluster a chat server across multiple machines for fault tolerance
• connect mobile clients to a messaging backend via REST API

When to choose

• you need a battle-tested, highly scalable XMPP server for large installations
• you require fault-tolerant clustering and horizontal scaling for chat workloads
• you want flexible client connectivity (XMPP, REST, SSE, WebSockets, BOSH)
• you need enterprise-grade messaging with monitoring and load testing tooling

When to avoid

• you only need a small personal chat server with minimal setup
• your use case is not messaging or chat related
• you prefer a server in a more mainstream language with a larger community
• you need a lightweight single-node solution without clustering

Facets

service · maturity active

http-server websocket message-queue monitoring load-testing messaging-platforms self-hosted backend self-hosted cross-platform xmpp-server jabber instant-messaging chat-server erlang clustered fault-tolerant bosh sse enterprise messaging real-time linux docker kubernetes

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