spacekit
The premium Open Source alternative to Cesium
🎯 Best for:Developers building browser-based space simulations or educational tools.
What is spacekit?
Replaces proprietary 3D engines for celestial body rendering and orbital pathing. Uses Three.js to calculate and visualize Keplerian orbits in real-time within the browser.
Tech Stack
JavaScriptData Visualization
Why spacekit?
- • Lightweight Three.js dependency
- • Built-in Keplerian orbit math
- • Extensive celestial body database
Limitations
- • Limited terrain mapping
- • No native mobile SDK
- • Requires manual TLE updates
3/3/2026
Last Update
46
Forks
16
Issues
MIT
License
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Competitor Cost
-$1,440
/ year (est. based on Cesium)
Self-Hosted
$0
/ year
Team Size10 Users
150+
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