Free, open source 3D planetarium software that renders a realistic night sky in real time on desktop computers.
10.2K+17 this week1.1KC++GPL-2.0Updated 4 hours ago
1 alternative
Best open-source alternatives to Sky Guide (2026)
Looking for a free, open-source alternative to Sky Guide? These 1 projects can replace it. Each one passed our quality screening and is explained in plain words, so you can compare stars, license and maintenance at a glance.
Quick comparison
| Project | Stars | License | Last commit |
|---|---|---|---|
| Stellarium/stellarium | ★ 10.2K | GPL-2.0 | 4 hours ago |
FAQ
- Is there a free, open-source alternative to Sky Guide?
- Yes. The most popular open-source alternatives to Sky Guide on Repolode are stellarium.
- Which Sky Guide alternative should I choose?
- stellarium has the most GitHub stars and is released under GPL-2.0. Compare the license and last commit of each option in the table above before choosing.
How this list is made: AI reads each project's documentation to match it with products it can replace, every project passes our quality screening, and the list is ranked by GitHub stars. Stars updated Nov 7, 2026. How Repolode works