8 self-hosted Cumulocity IoT alternatives

Open-source IoT platform for device management, telemetry collection, rule-based processing, alarms, and real-time dashboards using standard IoT protocols.

22.1k stars6.4k forksApache-2.0last commit 17 Jul 2026Actively maintained

ESPHome generates custom firmware for ESP32/ESP8266 and other boards from YAML, enabling local smart home devices with Home Assistant, API, and MQTT integration.

11.4k stars5.5k forkslast commit 28 Jul 2026Actively maintained

Eclipse Mosquitto is a lightweight, open-source MQTT broker supporting MQTT 5.0 and 3.1.1, plus client libraries and CLI tools for pub/sub messaging.

11.1k stars2.6k forkslast commit 30 Jun 2026Actively maintained

Open-source EV charge controller that optimizes vehicle charging with PV, batteries and dynamic tariffs; supports many chargers, vehicles and smart-home integrations.

7k stars1.4k forksMITlast commit 27 Jul 2026Actively maintained

Self-hosted smart home hub that unifies device control, automation, and floorplan visualization while preserving privacy.

2.6k stars331 forksMPL-2.0last commit 20 Apr 2026Actively maintained

OpenRemote is a 100% open-source IoT platform for device management, data dashboards, and automation with rules, APIs, and multi-tenant user management.

1.8k stars450 forkslast commit 27 Jul 2026Actively maintained

Open source IoT integration and automation platform with an adapter ecosystem, centralized state database, and tools for visualization and data logging.

1.4k stars158 forksMITlast commit 22 Jun 2026Actively maintained

Containerized MQTT management solution bundling a Mosquitto broker with a web UI for ACLs, dynamic security, client management, monitoring and cloud bridges.

489 stars31 forksApache-2.0last commit 2 May 2026Actively maintained