Dev tools · alternatives · 2026

24 alternatives to engine262, a JavaScript engine written in JavaScript

An implementation of ECMA-262 in JavaScript. Contribute to engine262/engine262 development by creating an account on GitHub.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. engine262, a JavaScript engine written in JavaScript launched in 2018; newer entries below may have overtaken it.

1. 1
   I wrote my own RTS game engine in C▲1,102

   An OpenGL RTS game engine written in C. Contribute to eduard-permyakov/permafrost-engine development by creating an account on GitHub.

   2021 · github.com · its alternatives →

2. 2
   Jazzle – An Innovative, Fast Transpiler for ECMAScript 2015 and later▲61

   An Innovative, Fast Transpiler for ECMAScript 2015 and later - JazzleWare/jazzle

   2017 · github.com · its alternatives →

3. 3CT
   C#-to-JavaScript compiler powered by Microsoft Roslyn▲155

   2015 · duoco.de · its alternatives →

4. 4
   A JavaScript interpreter written in Ruby▲75

   A Javascript implementation in Ruby! Contribute to haileys/twostroke development by creating an account on GitHub.

   2012 · github.com · its alternatives →

5. 5MT
   My Turbo Pascal compiler in JavaScript▲101

   2013 · teamten.com · its alternatives →

6. 6
   ECMA.app▲17

   The JS/TS playground that shows what your code does.

   2025 · ecma.app · its alternatives →

7. 7
   Javascript operating system▲57

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

   2012 · github.com · its alternatives →

8. 8
   I made a tool to migrate from CommonJS to ESM▲12

   Transforms CommonJS projects into ESM. Contribute to bennycode/ts2esm development by creating an account on GitHub.

   2023 · github.com · its alternatives →

9. 9
   TypeORM▲81

   Node.js ORM written in TypeScript

   2017 · github.com · its alternatives →

10. 10
    A 2D game engine in under 1000 lines of C▲98

    A top-down 2d game engine, written from scratch in under 1000 lines of C. Development of the game based on this engine is streamed on Twitch: https://www.twitch.tv/ryanpcmcquen - ryanpcmcquen/basque

    2020 · github.com · its alternatives →

11. 11ET
    engine262 - the self-hosted JavaScript engine▲5

    2019 · engine262.js.org · its alternatives →

12. 12
    6to5 – Turn ES6 code into vanilla ES5 with source maps and no runtime▲48

    🐠 Babel is a compiler for writing next generation JavaScript. - babel/babel

    2014 · github.com · its alternatives →

13. 13
    Classes for javascript that you'd actually use▲52

    Classes for javascript that don't suck. Contribute to jneen/pjs development by creating an account on GitHub.

    2012 · github.com · its alternatives →

14. 14
    A JavaScript V8 engine walkthrough▲8

    An interactive tool explaining how the JavaScript V8 engine works.

    2022 · garden.bradwoods.io · its alternatives →

15. 15
    GitHub▲13

    Full-Stack Javascript MMORPG engine and framework

    2025 · github.com · its alternatives →

16. 16
    A Genetic Algorithm library written in JavaScript▲48

    Genetic algorithm library written in JavaScript. Contribute to lodenrogue/genetic-algorithm-js development by creating an account on GitHub.

    2020 · github.com · its alternatives →

17. 17
    Coffee2D – A simple HTML5 game engine▲14

    A HTML5 2D game engine written in CoffeeScript. Contribute to LanJian/coffee2d development by creating an account on GitHub.

    2015 · github.com · its alternatives →

18. 18
    I made a 3D engine in JavaScript and WebGL▲5

    A JavaScript WebGL 3D engine. From scratch. Contribute to victorqribeiro/3Dengine development by creating an account on GitHub.

    2021 · github.com · its alternatives →

19. 19
    JavaScript Quality Guide▲9

    :art: A JavaScript Quality Guide. Contribute to bevacqua/js development by creating an account on GitHub.

    2014 · github.com · its alternatives →

20. 20IG
    Isometric game engine demo written in Vanilla JavaScript▲11

    2021 · iso.org50.com · its alternatives →

21. 21AW
    A website for browsing JavaScript language proposals/champions and more▲10

    Browse ECMAScript/JavaScript proposals, champions, and more.

    2021 · proposals.es · its alternatives →

22. 22
    An object oriented 2D game-engine in Clojure▲5

    An object oriented 2D game-engine in Clojure. Contribute to divs1210/bakait development by creating an account on GitHub.

    2014 · github.com · its alternatives →

23. 23
    Rune Framework, ECMAScript 7 API Framework▲6

    ECMAScript 7 API Framework. Contribute to runejs-legacy/rune development by creating an account on GitHub.

    2015 · github.com · its alternatives →

24. 24
    JavaScript server-sent events library▲7

    Server-Sent Events for JavaScript. Contribute to fanout/js-eventstream development by creating an account on GitHub.

    2020 · github.com · its alternatives →

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 →