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IoT Protocol Comparison: MQTT vs CoAP vs HTTP

Interactive IoT communication simulator: watch MQTT, CoAP and HTTP packets travel from a constrained device to a broker/server side by side, tuning payload size, message rate, packet loss and persistent connections to compare protocol overhead, energy use and latency.

IoT & Smart City3DModerate60 FPS

Constrained IoT devices must choose how to talk to a broker or server, and the choice of protocol changes almost everything about the cost of that conversation. This simulator sends the same sensor payload over MQTT, CoAP and HTTP at the same time, visualizing each packet as it crosses from device to broker with its protocol overhead and payload drawn to scale. Tune payload size, message rate, network packet loss and whether HTTP keeps its connection alive, and watch how overhead bytes, energy per message and latency diverge between a lightweight publish-subscribe protocol, a compact UDP-based protocol, and a traditional request/response protocol.

⚙ Under the hood

Interactive 3D comparison of MQTT, CoAP and HTTP for constrained IoT devices: watch packets of different overhead cross from device to broker while you tune payload size, message rate, network packet loss and persistent connections, and read off the resulting latency and energy cost.

Three.jsiotmqttcoaphttpnetworkingcommunication-protocols

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install