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Life & fun · alternatives · 2026

24 alternatives to The Size of Space

An interactive visualization of the universe

The Size of Space is an interactive browser-based visualization that displays the full scale of the universe. Built with Three.js, it allows users to explore and understand the vastness of space through visual… 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. The Size of Space launched in 2019; newer entries below may have overtaken it.

  1. 1IR
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    Atlas of Spacefree▲770

    Hello 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 →

  3. 3

    I've been iterating on a small galaxy visualization project that originally started as a university course assignment, using only provided sample data (no real astronomical distances). Recently, I updated it to include redshift-based distance data, which makes the 3D structure more meaningful and closer to real large-scale galaxy distributions. Repo: https://github.com/Avicted/galaxy_visualization_raylib Demo video (3D navigation + galaxy structures): https://www.youtube.com/watch?v=fC83RDWuPvw Current state: - Written in C (C99 standard) using Raylib -…

    2024 · github.com · its alternatives →

  4. 4
    Spaces▲112

    Interactive 3D art gallery for the new frontier of Web 3.0

    2020 · its alternatives →

  5. 5

    I was wondering how I can arrange objects along a spherical helix path, and read some articles on it. I ended up learning about parametric equations again, and make this visualization to document what I learned: https://visualrambling.space/moving-objects-in-3d/ feel free to visit and let me know what you think!

    2025 · visualrambling.space · its alternatives →

  6. 6

    Gravity WebGL experiment in the Solar System

    2016 · github.com · its alternatives →

  7. 7

    Catalog of all chart types and tools to build them

    2017 · visualizationuniverse.com · its alternatives →

  8. 8

    An interactive data visualisation about Exoplanets by TK Vishal

    2019 · exoplanetexplore.now.sh · its alternatives →

  9. 9

    An interactive 3D visualization of the all the buildings in Manhattan.

    2018 · tbaldw.in · its alternatives →

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    Neural network 3D visualization framework, build interactive and intuitive model in browsers, support pre-trained deep learning models from TensorFlow, Keras, TensorFlow.js - GitHub - tensorspace-team/tensorspace: Neural network 3D visualization framework, build interactive and intuitive model in br

    2018 · github.com · its alternatives →

  11. 11IM

    I made this site using R3F (https://github.com/pmndrs/react-three-fiber), a React renderer for 3JS (https://threejs.org/). The celestial bodies are Three.JS meshes. I used loaders (namely 'useLoader' from R3F and 'GLTFLoader' from 3JS) to import 3D models, such as International Space Station. More on loading models in R3F: https://docs.pmnd.rs/react-three-fiber/tutorials/loading-mod... I've future plans for this side project. It would be great to hear from the HN community before diving into them. Enjoy! P.S: Getting an empty…

    2022 · spaceinbrowser.com · its alternatives →

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    A tediously accurate scale model of the solar system

    2014 · joshworth.com · its alternatives →

  13. 13

    Over the weekend I was discussing the latest news relating to open weights with some of my non-techie friends. After 30 mins of waffling, I realised it is quite a long and interesting story, with many twists and turns. I've always wanted to create a 'long scroll' story, but have never found a suitable story to tell. This felt like a fun weekend project to undertake. The story itself doesn't have too many scroll effects (which is probably a good thing), it was more about trying to tell a story with a certain style that wouldn't really fit on my personal blog. Would love to get your feedback…

    2020 · blog.scottlogic.com · its alternatives →

  14. 14

    Show the browser sizes your actual visitors use. By Polypane

    2020 · polypane.app · its alternatives →

  15. 15

    An interactive map of screen sizes for responsive web design

    2019 · screensizemap.com · its alternatives →

  16. 16

    Cosmic characters for digital products

    2022 · spacers.wannathis.one · its alternatives →

  17. 17MA

    The concept for metiq.space came after playing Global Magnates with friends and realizing how fragmented live global data is. ships, aircraft, satellites, ports, weather, hazards, infrastructure, cyber, and public datasets all exist, but they usually live in separate tools and maps. The goal was to build one interactive 3D globe where live public data could be visualized by latitude, longitude, and altitude. Surface data stays on the globe, while aircraft, satellites, and other above surface things can be represented in actual 3D space instead of being flattened onto a map. The outcome is an…

    Jun 2026 · metiq.space · its alternatives →

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    Google Translate for engineers working with motion

    2017 · google.github.io · its alternatives →

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    Spatium▲182

    Hi there, humans! I'm excited to announce Spatium! I'm a big fan of any topic related to our universe. I'm also a developer, so I've put these things together and I built this new tab Chrome Extension for space lovers, astronomy fans, and science geeks like me. If you enjoyed it, please spread some love <3 FEATURES • Space images • Every day, get a fascinating image of our universe. Enjoy pictures of stars, planets, moons, galaxies, nebulae, comets and more right on your browser tab. • Sun Widget • Find out when the sunrise, sunset, first and last light times will be precisely at your…

    2021 · spatium.earth · its alternatives →

  20. 20IB
  21. 21VY

    2013 · mkolysh.scripts.mit.edu · its alternatives →

  22. 22

    Anonymous aggregate viewport statistics from ScreenSize.net browser sessions, with recent viewport, device pixel ratio and browser distributions.

    Sep 2026 · screensize.net · its alternatives →

  23. 235S
  24. 24

    Search & Visualize anything in time and space

    2025 · rekisstory.labs.vu.nl · its alternatives →

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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 →