mikroverk/esp32sim
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Licence OK
MIT: you can use it for free, also in a commercial product. Keep the licence notice.
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What it is
An ESP32 emulator written in Rust that runs unmodified firmware, including the mask ROM, bootloader and app, on a computer or in a browser. It models board peripherals such as displays, touch, LEDs, audio and WiFi. Supports ESP32-S3, C3, C6 and classic ESP32 chips at varying…
Who it's for
Embedded developers testing ESP32 firmware without hardware, and researchers comparing emulation with real chips
How to use it
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Paste this into Claude, ChatGPT or your coding assistant.
Help me install and set up mikroverk/esp32sim in my project. Follow its README: https://github.com/mikroverk/esp32sim. Explain each step and check it is safe before running anything.
Star curve
On the radar
Its place among the radar's top 100, day by day, with #1 at the top. Gaps are days it was out of the top 100.
Records
- Best place on RepoAlerts: #20, on 18 Oct 2026
- In the top 100 for 2 days since 18 Oct 2026
- On the Hacker News front page on 18 Oct 2026
On Hacker News
- Show HN: Esp32sim – Run ESP32 firmware in the browser206 points · 46 comments · 17 Oct 2026
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