Communication

Apache Kafka® running on Kubernetes

Robust, Ubiquitous and Massively Scalable Messaging Platform (XMPP, MQTT, SIP Server)

Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. S

Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. S

ZeroMQ core engine in C++, implements ZMTP/3.1

Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots

Open source RabbitMQ: core server and tier 1 (built-in) plugins

Open source RabbitMQ: core server and tier 1 (built-in) plugins

Open source RabbitMQ: core server and tier 1 (built-in) plugins

The most scalable and reliable MQTT broker for AI, IoT, IIoT and connected vehicles

The most scalable and reliable MQTT broker for AI, IoT, IIoT and connected vehicles

High-Performance server for NATS.io, the cloud and edge native messaging system.

High-Performance server for NATS.io, the cloud and edge native messaging system.

⚠️ DEPRECATED ⚠️ The comprehensive Arduino Email Client Library.

A self-hosted Email Middleware for IMAP, SMTP, Gmail API, Graph API — built for developers

Prometheus Alertmanager

CloudFlare free temp domain email 免费收发 临时域名邮箱 支持附件 IMAP SMTP TelegramBot

一键自动化 下载、安装、激活 Office 的利器。