e486-web: a standalone pure-JavaScript Intel 80486DX2 PC web emulator

· Adafruit Industries Blog · Oct. 28, 2026, 5:50 p.m.
emulation gaming github Software Open Source Web Development Javascript emulation
Summary
Jan de Jager has released e486-web, a pure JavaScript emulator for the Intel 80486DX2-66 PC that operates entirely in the browser without dependencies. This project emphasizes a complete emulation of both hardware and firmware, utilizing real unmodified BIOS.
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