Life & fun · alternatives · 2026

24 alternatives to 60fps JavaScript with this lib. Run anything during idle time

The power to sort, stringify, compress, decompress and run your complex calculations while staying smooth and interactive at 60fps

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. 60fps JavaScript with this lib. Run anything during idle time launched in 2020; newer entries below may have overtaken it.

1. 1
   js-coroutines▲2

   Javascript heavy lifting without the jank! Your code @ 60fps

   2020 · js-coroutines.com · its alternatives →

2. 2SU
   Speed up your site by running JavaScript when the browser is idle▲94

   2022 · npmjs.com · its alternatives →

3. 3VJ
   Velocity.js – Accelerated JavaScript animation▲160

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

   2014 · velocityjs.org · its alternatives →

4. 4JL
   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 →

5. 5
   Fast.js – faster reimplementations of native JavaScript functions▲323

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

   2014 · github.com · its alternatives →

6. 6
   Faster.js – a micro-optimizing JavaScript compiler▲89

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

   2018 · github.com · its alternatives →

7. 7
   Webstudio Animations▲160

   Silky-smooth, uninterrupted scroll-driven web animations

   2025 · webstudio.is · its alternatives →

8. 8GJ
   G9.js – Automatically Interactive Differentiable Graphics▲237

   2016 · omrelli.ug · its alternatives →

9. 9
   Fast 2kB date library alternative to Moment.js with the same API▲122

   ⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API - iamkun/dayjs

   2018 · github.com · its alternatives →

10. 10
    TinyFast▲319

    I am a developer. I have been building stuff for the last 13 years. One common challenge in all my projects is compressing assets to make them as small as possible. I used to end up using online compressors, but this has a lot of privacy concerns. So, I finally set down for couple of weeks and built this simple app. I can just drag and drop assets in it and it shrinks them. It currently supports around 25 file types. I built a lot of iOS apps but this is the first time building a macOS app, so any feedback is welcome.

    2025 · tinyfast.app · its alternatives →

11. 11
    CSS Speedrun – A small game to test and improve your CSS knowledge▲213

    A small fun app to test your CSS knowledge. Find the correct CSS selectors for the 10 puzzles as fast as possible.

    2022 · css-speedrun.netlify.app · its alternatives →

12. 12MA
    Made a small JavaScript benchmarking app – BenchJS▲33

    Run, compare, and share JavaScript benchmarks in your browser with BenchJS.

    2024 · benchjs.com · its alternatives →

13. 13
    1 KB JavaScript framework for building front-end applications▲216

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

    2017 · github.com · its alternatives →

14. 14
    NotebookJS▲109

    Scientific computation for JavaScript

    2016 · datazar.com · its alternatives →

15. 15
    Fall asleep by watching JavaScript load▲84

    Fall asleep by watching JavaScript load. Contribute to sarusso/bedtime development by creating an account on GitHub.

    Jan 2026 · github.com · its alternatives →

16. 16
    YepCode▲157

    Hey HN, We’re excited to introduce YepCode Run, a serverless runtime and SDK for executing code in secure sandboxes. Built on top of YepCode (https://yepcode.io), it allows you to execute code without any setup or installation. Perfect for: * Running AI-generated code – Securely in a sandbox environment, enabling fully autonomous AI agents. * Package Exploration – Try npm or PyPI packages without installing them locally. * Code Sharing – Easily share runnable code examples with others. * Quick Prototyping – Test snippets and algorithms on the fly. Just write or paste your code, and…

    2022 · yepcode.io · its alternatives →

17. 17
    Get Fast▲61

    Measure the speed of your code

    2023 · its alternatives →

18. 18
    Smaller▲85

    Make your websites load faster

    2018 · its alternatives →

19. 19
    hasty.dev▲146

    A JS Perfomance Tool

    2021 · hasty.dev · its alternatives →

20. 20
    Million.js v2.0.0▲98

    An extremely fast virtual DOM - React up to 70% faster

    2023 · millionjs.org · its alternatives →

21. 21CB
    Compiled, buildtime atomic CSS in JavaScript and all your favorite APIs▲47

    2021 · compiledcssinjs.com · its alternatives →

22. 22
    Granim.js – Create fluid and interactive gradients animations▲74

    Create fluid and interactive gradient animations with this small javascript library.

    2016 · sarcadass.github.io · its alternatives →

23. 23
    Graphics.js▲93

    Made a video game in < 15 min

    2022 · github.com · its alternatives →

24. 24
    60FPS smooth, no matter how janky app was due to heavy build/layout▲12

    Achieve ~60 FPS, no matter how heavy the tree is to build/layout - fzyzcjy/flutter_smooth

    2022 · 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 →