Life & fun · alternatives · 2026
24 alternatives to gravity.js - Beta
Gravity WebGL experiment in the Solar System
Gravity.js is a WebGL experiment that simulates the Solar System, allowing users to visualize gravitational interactions between planets and celestial bodies. Launched as a web-based application, it lets viewers… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. gravity.js - Beta launched in 2016; newer entries below may have overtaken it.
- 1IB
2022 · multiplanetary.website · its alternatives →
- 2GI
Just for fun and self education, I've built this over a weekend to teach myself why orbits exist, not just show planets going around. Something that was never clearly explain to me in school. It opens with a guided tour that builds the idea up step by step: two bodies and the equal/opposite force, inertia (the Sun is removed and Earth just drifts straight), then "an orbit is falling and continuously missing," cosmic velocities with a little rocket, Voyager 1 & 2's real gravity assists (the clock runs the actual 1977–1989 dates so the planets orbit into their grand-tour alignment and the…
Jun 2026 · qunabu.github.io · its alternatives →
- 3
A gravity simulator, with updated movement controls
2016 · valentinvichnal.github.io · its alternatives →
- 4
Atlas of Spacefree▲770Hello HN! Sharing a recent side project of mine, the Atlas of Space, that I built out to explore the Solar System. As a long-time space nerd, I realized recently that I didn't have a good intuition on the scale, speed, and relative orientation of the celestial bodies around us. So over the break I built out a kind of spatial Wikipedia to click around and learn about planets, moons, asteroids, and other bodies orbiting the Sun. The physics is all simulated in the browser using simple Newtonian mechanics. There's a lot left to do from here, including modeling objects in non-Keplerian orbits…
2025 · atlasof.space · its alternatives →
- 5
Renders black hole gravitational lensing effects in an image canvas using WebGL, glfx.js, and numeric.js - cliffcrosland/black-hole.js
2015 · github.com · its alternatives →
- 6
22d ago · space.bl2.net · its alternatives →
- 7HO
3D gravity and space Simulator. Explore and play around with the force of gravity in the context of an array of scenarios from our solar system and beyond. You can add planets, delete the Sun, change the value of the gravitational constant or simply lean back and enjoy the dazzling beauty of the pen
2018 · thehappykoala.github.io · its alternatives →
- 8
Gravity 8▲212Build a SaaS app at warp speed with a Javascript boilerplate
2021 · usegravity.app · its alternatives →
- 9
Hello HN! We’re a small creative studio specializing in real-time 3D experiences. Netlify approached us to design and build an interactive experience to celebrate reaching 5 million developers. Inspired by the classic game Marble Madness, we created a gamified experience where users control a ball through playful, interactive levels. The goal was to blend marketing content with the look and feel of a game to engage users. The app is built with Three.js [1], using our custom render pipeline and shaders, and uses Rapier for physics simulation [2]. The 2D content is overlaid on the WebGL view…
2024 · 5-million-devs.netlify.com · its alternatives →
- 10
WebGL simulation of the solar system. Contribute to olane/orbits.js development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 11
- 12IR
2021 · htwins.net · its alternatives →
- 13
Gravity▲99A modern RPC framework for Svelte, React, Solid and Vue
2022 · gravity.digitak.dev · its alternatives →
- 14WP
This was my recent weekend project, aimed at teaching me JavaScript, a bit of HTML5, and (mostly) WebGL. The orbital data are from NASA JPL. I was inspired in part by this Flash app: http://www.dynamicdiagrams.com/wp-content/uploads/2011/04/orrery_2011_bce.swf, but wanted to do something in 3D. Coming from the games-dev world, this is my first introduction to web coding. The UI is jquery. I mostly used http://learningwebgl.com/blog for the 3D stuff. Being WebGL, it will work mostly on Chrome, Firefox 4 Beta. Forget about IE. I needed to figure out how to render text to the WebGL canvas - I…
2011 · solar-system-explorer.com · its alternatives →
- 15
2014 · jessevdk.github.io · its alternatives →
- 16
Sep 2026 · newtonsorchard.app · its alternatives →
- 17
2020 · pakastin.github.io · its alternatives →
- 18AS
2016 · erkaman.github.io · its alternatives →
- 19
Hi. I’m a high school student studying for my GCSEs. I was using Google Antigravity heavily for my side projects, but I kept hitting the usage limits, and getting random "agent terminated" errors. So I decided to try build my own version of the IDE. I love the UI, so I copied it as accurately as possible, and then hooked up some logic into it, including the INCREDIBLY finicky webcontainer api. I tried to keep it super lightweight, no build steps, or dependencies, and now that its open source, I'm hoping people can build things on top of it that arent possible with closed source tools, like…
May 2026 · github.com · its alternatives →
- 20
An interactive visualization of the universe
2019 · neal.fun · its alternatives →
- 21A2
2017 · htmlpreview.github.io · its alternatives →
- 22
Gravity by Orbit▲262A free magazine about building & scaling communities
2022 · orbit.love · its alternatives →
- 23
AstroGrid▲113Explore the entire universe in your browser, in real 3D
Apr 2026 · velonspace.com · its alternatives →
- 24EW
2020 · exophysics.net · its alternatives →
Also compare
- I built a gravity simulator in pure CSS alternatives
- Gravity – Interactive solar-system simulator, from Newton to Einstein alternatives
- Gravity WebGL alternatives
- Atlas of Space alternatives
- Black-hole.js – Visualize black hole gravitational lensing in WebGL alternatives
- The whole Solar System and every tracked satellite, live in the browser 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 →