1
SGP4
sgp4gl-demo.vercel.appAlso covers space
SGP4.gl provides a GPU-accelerated three-dimensional satellite visualization using SGP4, CesiumJS, and Next.js.
Alternatives
The Best Sgp4gl Demo Alternatives in 2026
24 alternatives1 free · 7 open source
Looking for something like Sgp4gl Demo? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 7 are open source.
About Sgp4gl Demogithub.com/Kayhan-Space/sgp4gl-demo
VisitThis project demonstrates real-time three-dimensional satellite visualization in a browser using SGP4GL, CesiumJS, and Next.js.
Top picks at a glance
First suggestionSGP4SGP4.gl provides a GPU-accelerated three-dimensional…Free or freemium optionOrbiterOrbiter simulates spaceflight using Newtonian mechanics…Open source optionAndroidCelestiaCelestia for Android is a real-time space simulator for…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | SGP4 | — | Not stated | Web |
| 2 | AndroidCelestia | — | Yes | Android |
| 3 | Stellarium | — | Yes | Android, Linux, macOS |
| 4 | NASA's Eyes | — | Not stated | Web |
| 5 | Keeptrack.space | — | Yes | — |
| 6 | Look4Sat | — | Yes | Android |
| 7 | Satellite Map | — | Not stated | iOS, Web |
| 8 | Orbiter | Free | Yes | — |
| 9 | Webb Compare | — | Yes | — |
| 10 | AndroidPlanisphere | — | Yes | Android |
All Sgp4gl Demo alternatives
2
Also covers open source and space · same kind of open-source project
Celestia for Android is a real-time space simulator for exploring the solar system on an Android device.
3
Also covers open source and space · same kind of open-source project
Stellarium renders realistic skies in real time with OpenGL and is available for Linux, Windows, macOS, and Haiku.
4
NASA's Eyes
science.nasa.gov/eyesAlso covers space
NASA's Eyes offers browser-based three-dimensional visualizations for exploring NASA data and imagery.
5
Also covers open source and space · same kind of open-source project
Keeptrack.space visualizes satellite data and tracking sensors in 3D for users exploring astrodynamics.
6
Also covers open source and space · same kind of open-source project
Look4Sat provides an Android satellite tracker and pass predictor, with information sourced from Celestrak.
7
Satellite Map
satellitemap.spaceAlso covers space
Satellite Map tracks satellites in real time on an interactive 3D map.
8
Also covers open source and space · same kind of open-source project · free
Orbiter simulates spaceflight using Newtonian mechanics, with the solar system and its major bodies as its setting.
9
Also covers open source and space · same kind of open-source project
Webb Compare lets visitors compare images from the James Webb Space Telescope with earlier telescope images.
10
Also covers open source and space · same kind of open-source project
AndroidPlanisphere provides a star chart showing the Sun, Moon, stars, constellations, and planets for a selected location.
11
Solar System
eyes.nasa.gov/apps/solar-systemAlso covers space
Eyes on the Solar System offers a three-dimensional view for exploring the solar system and past and future missions.
12
Planet Globe
nbremer.github.io/planet-globeAlso covers space
Planet presents satellite imagery of Earth, including a visualization of images captured across a single day.
13
KeepTrack
keeptrack.spaceAlso covers space
KeepTrack tracks more than 37,000 satellites in real time and provides user profiles and achievements.
14
Track The Sky
trackthesky.comAlso covers space
Track The Sky tracks more than 9,000 satellites in real time on an interactive map.
15
ISS In Realtime
issinrealtime.orgAlso covers space
The ISS in Real Time page is titled as a live International Space Station tracking resource.
16
nextrocket.space
nextrocket.spaceAlso covers space
Next Rocket lists upcoming rocket launches with launch times, vehicles, providers, payloads, and destinations.
17
Next Spaceflight
nextspaceflight.comAlso covers space
Next Spaceflight lists upcoming launches and provides schedule details such as launch sites, vehicles, and payloads.
18
100,000 Stars
stars.chromeexperiments.comAlso covers space
The 100,000 Stars visualization presents nearby stars in 3D and provides controls for color and temperature.
19
SpaceSim
spacesim.coAlso covers space
Explore the Solar System, change time, and inspect worlds in this browser-based 3D space simulation.
20
Universe Atlas
universeatlas.orgAlso covers space
Universe Atlas visualizes scale from the observable universe to a proton, with real stars and planets shown at their measured sizes and distances.
21
SpaceFromSpace
spacefromspace.comAlso covers space
SpaceFromSpace archives declassified Cold War satellite imagery and modern spaceport photographs on interactive maps.
22
GOES-16 Satellite Imagery
rammb-slider.cira.colostate.eduAlso covers space
The SLIDER explorer displays satellite imagery from GOES-16 and Himawari-8 with interactive playback and overlays.
23
See A Satellite Tonight
james.darpinian.com/satellitesAlso covers space
See a Satellite Tonight helps visitors find when and where satellites will appear in their sky.
24
CelesTrack
celestrak.orgAlso covers space
CelesTrak is a nonprofit organization with a mission related to space and satellite information.
No alternatives match this filter.
Alternatives to similar tools
Solar System24 alternativesNASA's Eyes24 alternativesSpaceFromSpace24 alternativesOrbiter24 alternativesPlanet Globe24 alternativesKeeptrack.space24 alternatives
What is the best alternative to Sgp4gl Demo?
Based on features, tags and platforms, the closest alternatives to Sgp4gl Demo are SGP4, AndroidCelestia, and Stellarium.
Is there a free alternative to Sgp4gl Demo?
Yes. Orbiter is free or offer a free plan.
Are there open-source alternatives to Sgp4gl Demo?
Yes: AndroidCelestia, Stellarium, Keeptrack.space, and Look4Sat.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative