Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Kefir.js – a fast FRP lib with transducers support launched in 2014; newer entries below may have overtaken it.

1. 1
   KRFT 1.5.0▲110

   A modular instrument for music production

   2017 · studioamplify.com · its alternatives →

2. 2
   NotebookJS▲109

   Scientific computation for JavaScript

   2016 · datazar.com · its alternatives →

3. 3
   Fulvid▲86

   A standalone desktop editor for Markdown and MDX

   Sep 2026 · github.com · its alternatives →

4. 4
   jducers: A js transducers-like implementation using generators and es8▲2

   javascript

   2018 · github.com · its alternatives →

5. 5KH
   Kea – High-Level Architecture for React, Inferno, Etc.▲8

   2016 · kea.rocks · its alternatives →

6. 6AA
   Awl, a toy Lisp language written in C and transpiled to JavaScript▲8

   2014 · skepsi.me · its alternatives →

7. 7WR
   WebFPGA – Rapid FPGA Development for Beginners▲8

   2019 · kickstarter.com · its alternatives →

8. 8
   Ting Ting – A piano in less than 100 lines of JS (using Phaser.js)▲9

   2017 · github.com · its alternatives →

9. 9
   Dissect – An open source DFIR framework▲8

   2022 · docs.dissect.tools · its alternatives →

10. 10
    Tone.js▲7

    A framework for creating interactive music in the browser

    2017 · tonejs.github.io · its alternatives →

11. 11FA
    Facile.Audio – A library for live audio streaming from the browser▲7

    2016 · facile.audio · its alternatives →

12. 12IJ
    InAccel + JFrog - Enterprise ready FPGA accelerator distribution▲7

    2019 · docs.inaccel.com · its alternatives →

13. 13BA
    BandFu, an experimental audio playground▲5

    2013 · bandfu.com · its alternatives →

14. 14
    Openemacs – a tiny emacs clone, ≤ 1024 LOC (C), based on kilo (BSD)▲8

    2016 · github.com · its alternatives →

15. 15QT
    Quokka – The Live Scratchpad for JavaScript▲8

    2017 · medium.com · its alternatives →

16. 16
    Jsong: faster than light streaming JSON parser and writer in C▲9

    2017 · github.com · its alternatives →

17. 17AP
    AllJS – Popular JavaScript libraries ready for tinkering▲6

    2015 · alljs.net · its alternatives →

18. 18OS
    Open-source SIMD-accelerated math library for C/C++/C#/Java/FORTRAN▲9

    2013 · yeppp.info · its alternatives →

19. 19AE
    An experimental music player built with ReactJS+MobX+Premiere▲8

    2017 · premiere-player.herokuapp.com · its alternatives →

20. 20TA
    Tweed – An OO JavaScript VDOM UI Library▲5

    2017 · medium.com · its alternatives →

21. 21KP
    Key&Pad. A Web Audio Synthesizer/XY-Pad Built with React.js and Redux▲6

    2016 · keyandpad.com · its alternatives →

22. 229C
    999.css, a barebones CSS framework in 999 bytes (Not gzipped)▲7

    2016 · 999.surge.sh · its alternatives →

23. 23
    Jazzari▲7

    A programmable band in your browser

    2017 · jackschaedler.github.io · its alternatives →

24. 24
    AUM▲7

    A flexible audio mixer & recorder

    2017 · kymatica.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 →