Run Pebble OS in Browser via WASM

Published: 3 days ago (February 12, 2026 at 08:16 AM EST)

1 min read

Source: Hacker News

Runs entirely in your browser — no server, no install. QEMU is compiled to WebAssembly, emulating the original Pebble ARM hardware and booting real PebbleOS firmware. Tested on desktop, doesn’t work well on mobile yet.

Firmware

May take 2–4 mins to boot.

Select firmware and click Boot.

FPS: —

Keys: Left = Back, Up/Down = Navigate, Right = Select

Serial Console

Source on GitHub

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