Ross ROSS = Recommend OSS ยท open-source software intelligence for agents

turms-im/turms

Some data may be outdated โ€” see provenance labels.

๐Ÿ•Š๏ธ The world's most advanced open source instant messaging engine for 100K~10M concurrent users https://turms-im.github.io/docs observed ยท 2026-10-01

github.com/turms-im/turms ยท Java ยท Apache-2.0 (permissive) observed ยท 2026-10-01

Health v2 ยท maintenance only

51/100

  • Activity 63
  • Release rhythm 8
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) โ€” computed 2026-10-21. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 2689
  • days_rel: n/a
  • days_push: 225
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

1924 stars ยท 305 forks observed ยท 2026-10-01

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

Turms is an open-source instant messaging engine written in Java designed to scale from 100K to 10M concurrent users. It provides a distributed server cluster (gateway, service, and admin components) with client SDKs for Java, JavaScript, and Swift, deployable via Docker Compose or Terraform.

Use cases

  • build a chat app for millions of concurrent users
  • self-host a private instant messaging server
  • add real-time messaging to iOS, Android, and web apps
  • deploy a scalable IM backend with Docker or Terraform
  • run a group chat and message timeline service
  • monitor a messaging cluster with Prometheus and Grafana

When to choose

  • you need a highly scalable, distributed IM backend for 100K+ concurrent users
  • you want a self-hosted alternative to proprietary chat services
  • you need cross-platform client SDKs (Java, JS, Swift) for chat apps
  • you want built-in admin tooling and monitoring out of the box

When to avoid

  • you need a tiny embedded chat widget with minimal infrastructure
  • your team has no capacity to operate a Java-based distributed cluster with MongoDB and Redis
  • you only need simple peer-to-peer messaging without server-side features
  • you prefer a managed SaaS chat provider over self-hosting

Facets

framework ยท maturity active

websocket http-server rpc message-queue monitoring chatbot messaging-platforms microservices backend web-development mobile-development developer-tools jvm cross-platform self-hosted instant-messaging chat im-engine distributed-systems c10m real-time-messaging push-notifications admin-dashboard terraform client-sdks real-time javascript swift docker kubernetes web-server

1 source

Member repositories

RepositoryRoleHealth v2
turms-im/turmsmain51

For agents

markdown ยท JSON ยท MCP: product_card(name="turms-im/turms")

Data as of 2026-10-19T08:05:51.212177+00:00 ยท Report a problem