# GoBelieveIO/im_service

golang   im   server

Repository: https://github.com/GoBelieveIO/im_service
Canonical: https://ross.abutalabs.com/products/im_service
Language: Go
License: GPL-2.0
License Family: copyleft
Topics: golang, go, im, free-software, open-source, server, chat, chat-application, instant-messaging, messaging, messaging-service, chat-server, chatapp, messenger
Last push: 2026-08-24T21:08:35+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 4154, "days_push": 9, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1983, forks 604 (observed 2026-08-28T04:06:01.905340+00:00)

## What it is
A Go-based instant messaging server supporting peer-to-peer, group, and chatroom messages with cluster deployment. It scales to 500k concurrent users per machine and handles 5000 messages per second.

## Use cases
- self-host an instant messaging server for a chat app
- send peer-to-peer and group chat messages at scale
- run a clustered chat backend supporting 500k online users
- build a messenger with large 3000-person groups
- add chatroom messaging to my application
- replace proprietary IM services with an open-source server

## When to choose
- you need a self-hosted, high-throughput IM backend in Go
- you require cluster deployment and large group support
- you want a GPL-licensed free chat server

## When to avoid
- you need a fully managed SaaS chat solution
- your project is incompatible with GPL-2.0
- you need built-in voice/video calling

## Facets
- artifact type: service
- maturity: active
- function: http-server, websocket, message-queue, auth
- domain: messaging-platforms, backend, self-hosted
- platform: go, self-hosted
- tags: instant-messaging, chat-server, im, group-chat, chatroom, cluster, golang, messaging, linux, docker

## Member repositories
- GoBelieveIO/im_service (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:01.905340+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:03:24.339866+00:00, confidence not recorded.
  - readme: https://github.com/GoBelieveIO/im_service (fetched 2026-08-28T04:06:01.905340+00:00, sha 238623b48bd6)
- Data as of 2026-08-30T08:39:29.467469+00:00.