IoT
Self-hosted IoT infrastructure — MQTT brokers, Home Assistant automation, ESPHome firmware, edge processing with eKuiper, and open-source tools for connecting sensors, microcontrollers, and smart home devices.
Velxio - Arduino Emulator That Runs Entirely in Your Browser
Real CPU emulation for Arduino, RP2040, ESP32, RISC-V, and Raspberry Pi—all in the browser with 48+ electronic …
eKuiper
Lightweight edge stream processing engine — filter, transform, and route IoT data at the edge with SQL-like rules.
EMQX
Scalable open-source MQTT broker — connect IoT devices, microcontrollers, and sensors at any scale.
Gotify
Simple self-hosted push notification server — send alerts from scripts, apps, or IoT devices to any device.
Home Assistant
Open-source home automation platform — integrate thousands of devices, automate routines, and keep your data local.
Hoppscotch
Open-source API development ecosystem — test REST, GraphQL, WebSocket and MQTT endpoints from a clean web UI.