BreadboardHub

An open registry for electronics circuit designs. Every circuit gets a permanent, citable URL and can be simulated in the browser without installing any software. Supports CircuitJS and Wokwi. Covers Arduino, ESP32, Raspberry Pi, and STM32 designs. No account required to browse or simulate. Reached users across 16 countries since launch with zero marketing. The registry fills a gap in the electronics community — circuit designs currently live on personal blogs, GitHub gists, and forum posts that go offline. BreadboardHub gives them a permanent home.