Advanced Physics Library designed for Javascript and Node.JS

In plain words

Phys.js is a physics library for JavaScript and Node.js that enables developers to simulate and model physical phenomena in their applications. It provides tools for calculating physics-based interactions and behaviors, making it suitable for developers building simulations, games, or educational software that requires accurate physical modeling. The library has been available since 2013.

written from the facts on this page · September 2026

• 
  Pts.js – A library for visualization and creative coding2018 · ptsjs.org · ▲611

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

• 
  Advanced Mathematics Library for Node.js and JavaScript2012 · github.com · ▲123

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

• A2
  A 2D Physics Simulator in JavaScript2017 · htmlpreview.github.io · ▲126
• 
  BepuPhysics – 3D real-time physics simulation library in C#2019 · github.com · ▲108

  Pure C# 3D real time physics simulation library, now with a higher version number. - bepu/bepuphysics2

• GJ
  Grid.js – Advanced table library that works everywhere2020 · gridjs.io · ▲390

  Grid.js is a lightweight JavaScript table plugin that works on all web browsers and devices. Grid.js is open-source and it helps you create advanced tables in seconds!

• 
  Simple 2D car physics with JavaScript2020 · pakastin.github.io · ▲308

• 
  SimCity, but with Permits▲905

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 1d ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 13d ago · tanzaniaeducationproject.org

• 
  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 14d ago · bigwords.page

• 
  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 8d ago · guitoro.com

• 
  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 12d ago · carrierexplode.com

• 
  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 22d ago · space.bl2.net

• PG
  Probabilistically Generating HN Post Titles▲683

  Life & fun · 2013 · grantslatton.com

• HD
  Hosted Docker-as-a-Service on SSDs for $5▲387

  Dev tools · 2013 · blog.copper.io

• IM
  I'm working on an open-source Gmail replacement▲387

  Dev tools · 2013 · khamidou.github.io

• 
  Blinkist▲288

  Key insights from 2,000+ bestselling nonfiction books

  Life & fun · 2013 · blinkist.com

• GC
  Gitter – Chat for GitHub▲243

  Dev tools · 2013 · gitter.im

• 
  Import.io▲239

  Scrape the web, sans manual scripting

  AI · 2013 · import.io