Life & fun · alternatives · 2026

24 alternatives to A large number of statistical distributions in JavaScript

Hi there, I've been working on this library for a while. It started as having the need for just a few random generators that are statistically tested and it quickly escalated to 130+ distributions... So far that's the only library I've seen that has generators that are fully covered by tests. I hope you guys find it useful.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A large number of statistical distributions in JavaScript launched in 2022; newer entries below may have overtaken it.

1. 1
   Simulating 20M Particles in JavaScript▲561

   Had some fun with shared array buffers over many months of free time. Skip to the end to play around with the final app. Open to ideas on how to simulate more whilst staying in js land.

   2024 · dgerrells.com · its alternatives →

2. 2
   I've been making JavaScript sandbox alone for 6 years▲397

   Hi HN! Thanks for your attention to my post. It was a big challenge to run most of Node.js packages in browser, fast moreover. Virtual File system, resolve import/export. I got cold many times, depressions, burned out, yet still alive and finished it. Many guys helped me with an advice. Many users give a lot of positive feedback. There are 200,000 monthly unique users. I work full time now because of the freemium business model. To be honest - I am happy after many years of hard work.

   2022 · playcode.io · its alternatives →

3. 3
   Stochastic – JavaScript library for simulating stochastic processes▲55

   Simulation of common stochastic processes with native JavaScript - NathanEpstein/stochastic

   2014 · github.com · its alternatives →

4. 4
   Chart.js▲263

   Simple, clean & engaging charts for designers and developers

   2014 · chartjs.org · its alternatives →

5. 5
   Million.js▲153

   A fast, <1kb virtual DOM

   2021 · github.com · its alternatives →

6. 6AJ
   A Javascript library to overcomplicate Five▲69

   2014 · jackdcrawford.github.io · its alternatives →

7. 7
   Chart.js 4.0▲111

   Open source JavaScript charting library for the modern web

   2022 · github.com · its alternatives →

8. 8
   Aimless.js – the missing js randomness library▲64

   The missing JavaScript randomness library. Contribute to ChrisCavs/aimless.js development by creating an account on GitHub.

   2023 · github.com · its alternatives →

9. 9
   Fast Random Library for C++17▲52

   Morning HN. Random number generation feels is a somewhat underrepresented topic in the C++ realm. There is a lot of questionable info about it found online and even the standard library is quite behind the times in terms of it's algorithms. It suffers from trying to accommodate sometimes impractical standard requirements and has several ways of getting significantly bad statistical results. This leaves a lot easily achievable performance & quality on the table. So, being a mathematician who mostly works with stochastic models and wants these models to run fast and well, I embarked on a…

   2025 · github.com · its alternatives →

10. 10
    1 KB JavaScript library for building front end apps▲242

    1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp

    2017 · github.com · its alternatives →

11. 11
    Advanced Mathematics Library for Node.js and JavaScript▲123

    Advanced Mathematics Library for Node.js and JavaScript - numbers/numbers.js

    2012 · github.com · its alternatives →

12. 12
    1kb JavaScript library for building front end applications▲187

    1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp

    2017 · github.com · its alternatives →

13. 13
    Combinatorics.js – Combinatorics JavaScript Library▲25

    2015 · github.com · its alternatives →

14. 14
    1 KB JavaScript library for building applications▲116

    1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp

    2017 · github.com · its alternatives →

15. 15
    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 →

16. 16
    Efficient data loading using zeta distributions▲34

    Efficient data fetching for your Javascript Applications - fed135/ha-store

    2018 · github.com · its alternatives →

17. 17
    NotebookJS▲109

    Scientific computation for JavaScript

    2016 · datazar.com · its alternatives →

18. 18CR
    Chance – Random generator library for JS – my weekend project▲5

    2013 · chancejs.com · its alternatives →

19. 19
    My first open-source project release – RandomJson▲56

    Provides a Kotlin/Java library to create a random json string - mangatmodi/RandomJson

    2019 · github.com · its alternatives →

20. 20
    FusionCharts▲6

    JavaScript charts for web & mobile

    2017 · fusioncharts.com · its alternatives →

21. 21BF
    Brain Frog – Can you be random enough for 11 lines of JavaScript?▲49

    Jun 2026 · brainfrog.lol · its alternatives →

22. 22
    Simple way to obtain pseudorandomness from CPU context switch in Go▲34

    Pseudorandom generator written in Go using CPU context switch - maxamel/BitGenGo

    2018 · github.com · its alternatives →

23. 23
    JavaScript port of Scientist library for refactoring critical paths▲34

    :microscope: A JavaScript interpretation of the Ruby library Scientist, a library for carefully refactoring critical paths. - bugthesystem/scientist.js

    2016 · github.com · its alternatives →

24. 24
    RANDOMIZED CSS3 GRADIENT GENERATOR▲7

    When there are 281,474,976,710,656 choices, roll the dice.

    2017 · paintbycode.github.io · 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 →