Life & fun · alternatives · 2026

Rythm.js is a JavaScript library that synchronizes web page animations with music. It enables developers to create visual effects that respond to audio beats and frequencies, allowing web elements to "dance" in time… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Make your web page dance with Rythm.js launched in 2017; newer entries below may have overtaken it.

1. 1
   Choreographer-JS, a simple way to handle complicated animations▲39

   A simple library to take care of complex CSS animations.

   2016 · christinecha.github.io · its alternatives →

2. 2
   Jitter 1.0▲1,020

   A fast and simple animation tool on the web 💫

   2023 · jitter.video · its alternatives →

3. 3
   Motion One – New animation library, built on the Web Animations API▲327

   Motion (prev Framer Motion) is a fast, production-grade animation library for React, JavaScript and Vue. Build smooth UI animations at a tiny footprint.

   2021 · motion.dev · its alternatives →

4. 4S
   Scrollorama▲395

   2012 · johnpolacek.github.com · its alternatives →

5. 5
   Pts.js – A library for visualization and creative coding▲611

   Pts is a javascript library for visualization and creative-coding.

   2018 · ptsjs.org · its alternatives →

6. 6
   A 64-step drum sequencer I built using React and Redux▲327

   An intuitive 64-step drum sequencer progressive web app built using React, Redux, and Tone.js

   2021 · sequencer64.com · its alternatives →

7. 7BJ
   Bounce.js – A tool for generating CSS3 animations▲172

   2014 · bouncejs.com · its alternatives →

8. 8WJ
   Wiv.js – A library for a more wiggly div▲265

   2018 · jjkaufman.github.io · its alternatives →

9. 9RJ
   Ramjet.js – Morph DOM elements into each other▲309

   2015 · rich-harris.co.uk · its alternatives →

10. 10
    Anime.js 3.0▲354

    Lightweight JavaScript animation library

    2019 · animejs.com · its alternatives →

11. 11
    Remotion▲428

    Create videos programmatically in React

    2021 · remotion.dev · its alternatives →

12. 12JL
    JS library to make your website instant▲426

    http://instantclick.io/ It seems the internet architecture won't bring us instant websites anytime soon. So here is a hack. I released this JS library last month (today is version 2.0 release, fixing v1.0's rough edges), it makes use of HTML5's pushState and preloading to make a website instant. It works like this: before clicking on a link, you'll hover over it. And there's a delay of 200-300 ms between these two events. InstantClick uses this delay to preload a page, when you click on a link it will display instantly in most case. (You can test on the website.) That's…

    2014 · its alternatives →

13. 13
    Anime.js▲236

    A flexible yet lightweight Javascript animation library.

    2016 · anime-js.com · its alternatives →

14. 14TJ
    Teoria.js - Music theory for JavaScript▲77

    2013 · saebekassebil.github.com · its alternatives →

15. 15
    Hammer.js▲193

    Add touch gestures to your site

    2015 · hammerjs.github.io · its alternatives →

16. 16
    Theatre.js▲241

    Animation and 3D editor for JavaScript

    2022 · theatrejs.com · its alternatives →

17. 17
    I ported Manim to TypeScript (run 3b1B math animations in the browser)▲140

    Hi HN, I'm Narek. I built Manim-Web, a TypeScript/JavaScript port of 3Blue1Brown’s popular Manim math animation engine. The Problem: Like many here, I love Manim's visual style. But setting it up locally is notoriously painful - it requires Python, FFmpeg, Cairo, and a full LaTeX distribution. It creates a massive barrier to entry, especially for students or people who just want to quickly visualize a concept. The Solution: I wanted to make it zero-setup, so I ported the engine to TypeScript. Manim-Web runs entirely client-side in the browser. No Python, no servers, no install. It runs…

    Feb 2026 · github.com · its alternatives →

18. 18
    Loud Links▲113

    A simple tiny Javascript library to add interaction sounds

    2016 · its alternatives →

19. 19
    Chart.js▲263

    Simple, clean & engaging charts for designers and developers

    2014 · chartjs.org · its alternatives →

20. 20
    mvntSTUDIO▲113

    I think Suno opened up music. Kling and Runway opened up video - but there's one creative domain nobody has touched yet: dance. So my team built an web app — give it a YouTube link to your music and it generates a 3D dance animation in under 2 minutes. The core is a diffusion-based music-to-motion model (mvnt-m4) trained on proprietary mocap/label data from professional choreographers. I think dance is the missing piece of AI-generated content — just like how performance made K-pop a global phenomenon, and we believe AI dance will play the same role in the AI UGC era. This is v0.1 — a…

    Feb 2026 · mvnt.studio · its alternatives →

21. 21
    Web Audio DSP Playground▲126

    2018 · acarabott.github.io · its alternatives →

22. 22VJ
    Velocity.js – Accelerated JavaScript animation▲160

    Velocity.js: An incredibly fast animation engine for motion designers.

    2014 · velocityjs.org · its alternatives →

23. 23AS
    A singing synthesizer for the browser with automatic 3-part harmony▲208

    2024 · pbat.ch · its alternatives →

24. 24ID
    Impulse – Dynamic JS Animations for the Mobile Web▲93

    2014 · impulse.luster.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 →