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Life & fun · alternatives · 2026

24 alternatives to Transputer emulator in JavaScript (fast enough to be useful)

Transputer emulator written in Javascript running my operating system from 1995.

This is a JavaScript-based emulator that runs Transputer code, a processor architecture from the 1980s. It's designed for people interested in retro computing or learning about parallel processing systems. The emulator… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Run KolibriOS, Linux or Windows 98 in your browser

    2013 · copy.sh · its alternatives →

  2. 2OS
  3. 3

    A Chip8 emulator written in JavaScript. Contribute to victorqribeiro/Chip8js development by creating an account on GitHub.

    2025 · github.com · its alternatives →

  4. 4XA

    x86CSS is a working CSS-only x86 CPU/emulator/computer. No JavaScript required!

    Feb 2026 · lyra.horse · its alternatives →

  5. 5

    NES emulator written in Rust. Contribute to pcwalton/sprocketnes development by creating an account on GitHub.

    2013 · github.com · its alternatives →

  6. 6TF

    The Transcrypt Python to JavaScript compiler makes it possible to program lean and fast browser applications in Python. Transcrypt applications can use any JavaScript library and can also run on top of Node.js or be used in combination with Django.

    2016 · transcrypt.org · its alternatives →

  7. 7

    Online OR1K Emulator running Linux. Contribute to s-macke/jor1k development by creating an account on GitHub.

    2014 · github.com · its alternatives →

  8. 8MT
  9. 9GJ
  10. 10

    This TypeScript package allows you to safely execute JavaScript code within a WebAssembly sandbox using the QuickJS engine. Perfect for isolating and running untrusted code securely, it leverages the lightweight and fast QuickJS engine compiled to WebAssembly, providing a robust environment for code execution. Features - *Security*: Run untrusted JavaScript code in a safe, isolated environment. - *File System*: Can mount a virtual file system - *Custom Node Modules*: Custom node modules are mountable - *Fetch Client*: Can provide a fetch client to make http(s) calls - *Test-Runner*: Includes…

    2024 · github.com · its alternatives →

  11. 11

    An operating system written in JavaScript. Contribute to haileys/jsos development by creating an account on GitHub.

    2012 · github.com · its alternatives →

  12. 12AB
  13. 13

    Faster user-land reimplementations for several common builtin native JavaScript functions. - codemix/fast.js

    2014 · github.com · its alternatives →

  14. 14
    Sacred OS▲155

    Retro OS in your browser

    2024 · sacred.neocities.org · its alternatives →

  15. 15

    I've been exploring new ways of testing Ghidra processor modules. In this repo, I was able to emulate NES ROMs in Ghidra to test its 6502 specification, which resulted in finding and fixing some bugs. Context: Ghidra is used for reverse engineering binary executables, complementing the usual disassembly view with function decompilation. Each supported architecture has a SLEIGH specification, which provides semantics for parsing and emulating instructions, not unlike the dispatch handlers you would find in interpreters written for console emulators. Emulator devs have long had extensive test…

    2023 · github.com · its alternatives →

  16. 16

    Nostalgist.js is a JavaScript library that allows you to run emulators of retro consoles within web browsers.

    2023 · nostalgist.js.org · its alternatives →

  17. 17

    Run KolibriOS, Linux or Windows 98 in your browser

    2016 · copy.sh · its alternatives →

  18. 18

    Z80-based CP/M emulator, in golang. Happily runs Zork, Microsoft BASIC, Turbo Pascal, Wordstar, etc. - skx/cpmulator

    2024 · github.com · its alternatives →

  19. 19

    Learn how classic game hardware worked. Write code and see it run instantly.

    2016 · 8bitworkshop.com · its alternatives →

  20. 20

    Creating a fantasy CPU emulator with React and TypeScript part 1

    2021 · maartenhus.nl · its alternatives →

  21. 21

    It's based on the jediterm library developed for IDEs, but it can also be put to work as a standalone terminal emulator with tabs. The library has been around for more than 10 years, but I don't think anyone made a terminal emulator app from it?

    2025 · github.com · its alternatives →

  22. 22

    faster.js is a Babel plugin that compiles idiomatic Javascript to faster, micro-optimized Javascript. - vzhou842/faster.js

    2018 · github.com · its alternatives →

  23. 23

    Matt Mueller's personal website for sharing what I've learned about programming, design, entrepreneurship and life.

    2017 · mat.tm · its alternatives →

  24. 24MI

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →