* [HAVEN v3.50.0](https://github.com/ancsemi/Haven) – Self-hosted private chat server that runs on your machine, offering voice, channels, invite codes, and file sharing.

* [Centrifugo v6.9.3](https://github.com/centrifugal/centrifugo) – Scalable real-time messaging server supporting multiple transport protocols for building interactive applications.

* [RabbitMQ v4.3.5](https://github.com/rabbitmq/rabbitmq-server) – Feature-rich multi-protocol messaging and streaming broker supporting various protocols.

* [NATS Server v2.14.5](https://github.com/nats-io/nats-server) – High-performance messaging server for cloud-native applications and distributed systems.

* [Harper v5.2.0](https://github.com/HarperFast/harper) – Node.js unified in-memory platform combining database, cache, application logic, and messaging for microsecond-level performance.

* [RocketMQ Clients cpp-5.1.0](https://github.com/apache/rocketmq-clients) – Collection of client bindings for Apache RocketMQ 5.x, built on Protocol Buffers and gRPC following the rocketmq-apis specifications.

* [Ethora SDK Monorepo v26.08](https://github.com/dappros/ethora) – Chat, AI, and messaging SDK platform to add real-time messaging, AI bots, wallets, and backend services to apps.