1
ESAWebb
esawebb.orgAlso covers space · same kind of website
ESA Webb shares news and images from the James Webb Space Telescope, including research observations.
Alternatives
The Best James Webb Space Telescope Alternatives in 2026
24 alternatives1 free · 1 open source
Looking for something like James Webb Space Telescope? 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 1 are open source.
About James Webb Space Telescopescience.nasa.gov/mission/webb
VisitNASA describes the James Webb Space Telescope as an observatory studying phases throughout the history of the universe.
Top picks at a glance
First suggestionESAWebbESA Webb shares news and images from the James Webb Space…Free or freemium optionNASA EbooksNASA e-Books provides a catalog of electronic books…Open source optionWebb CompareWebb Compare lets visitors compare images from the James…Another optionSpaceTelescopeLiveSpace Telescope Live provides information on current, past…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | ESAWebb | — | Not stated | Web |
| 2 | SpaceTelescopeLive | — | Not stated | Web |
| 3 | SDO Dashboard | — | Not stated | Web |
| 4 | Webb Compare | — | Yes | — |
| 5 | Webb Compare | — | Not stated | Web |
| 6 | Visible Earth | — | Not stated | Web |
| 7 | History | — | Not stated | Web |
| 8 | NASA History | — | Not stated | Web |
| 9 | ESA Hubble | — | Not stated | Web |
| 10 | Russian Space Web | — | Not stated | Web |
All James Webb Space Telescope alternatives
2
SpaceTelescopeLive
spacetelescopelive.orgAlso covers space · same kind of website
Space Telescope Live provides information on current, past, and upcoming Hubble and James Webb telescope investigations.
3
SDO Dashboard
sdo.gsfc.nasa.gov/data/dashboardAlso covers space · same kind of website
The Solar Dynamics Observatory dashboard supports study of the Sun's influence on Earth and near-Earth space.
4
Also covers space · open source
Webb Compare lets visitors compare images from the James Webb Space Telescope with earlier telescope images.
5
Webb Compare
webbcompare.comAlso covers space · same kind of website
Webb Compare presents side-by-side images from the James Webb and Hubble space telescopes, including nebulae and galaxy clusters.
6
Visible Earth
visibleearth.nasa.govAlso covers space · same kind of website
NASA's Earth Observatory publishes images, stories, and discoveries about the environment, Earth systems, and climate.
7
History
nasa.gov/historyAlso covers space · same kind of website
NASA History provides material about the agency's history, including archives and historical research resources.
8
NASA History
nasa.gov/history/history-publications-and-reso…Also covers space · same kind of website
The NASA History Office makes histories, chronologies, oral interviews, and other publications freely available to the public.
9
ESA Hubble
esahubble.orgAlso covers space · same kind of website
ESA Hubble shares science releases and discoveries from the Hubble Space Telescope.
10
Russian Space Web
russianspaceweb.comAlso covers space · same kind of website
Russian Space Web publishes history and news about the Russian space program.
11
Space Atlas
spaceatlas.techAlso covers space · same kind of website
Space Atlas tracks satellites and rocket bodies on a live 3D map, with history extending from Sputnik to today.
12
Mental Landscape
mentallandscape.comAlso covers space · same kind of website
Mental Landscape collects Don P. Mitchell's work about Venus and Soviet space history.
13
ESO Images
eso.org/public/imagesAlso covers space · same kind of website
The European Southern Observatory image gallery collects astronomy images across subjects such as galaxies, exoplanets, and cosmology.
14
Also covers space · same kind of website · free
NASA e-Books provides a catalog of electronic books published by the space agency.
15
JPL Photojournal
photojournal.jpl.nasa.govAlso covers space · same kind of website
NASA Photojournal provides space and mission images, animations, and videos, with topic-based browsing and search.
16
JPL Images
jpl.nasa.gov/imagesAlso covers space · same kind of website
NASA's Jet Propulsion Laboratory Image Gallery lets visitors browse and search space photographs and science images.
17
NASA
nasa.govAlso covers space · same kind of website
NASA.gov shares news, images, and videos about space exploration, scientific discovery, and aeronautics.
18
Map of the Universe
mapoftheuniverse.netAlso covers space · same kind of website
The Map of the Universe interactively maps 200,000 galaxies from the Milky Way toward the observable universe.
19
SpaceEngine
spaceengine.orgAlso covers space · same kind of website
Explore a realistic virtual universe on a computer with SpaceEngine’s universe simulator.
20
ViewSpace
viewspace.orgAlso covers space · same kind of website
ViewSpace offers astronomy interactives, image tours, sliders, and videos for exploring the universe.
21
Space Time
space.pointdynamics.comAlso covers space · same kind of website
A browser-based 3D universe explorer combines the solar system, stars, deep-sky objects, satellites, and galaxies.
22
Universe Atlas
universeatlas.orgAlso covers space · same kind of website
Universe Atlas visualizes scale from the observable universe to a proton, with real stars and planets shown at their measured sizes and distances.
23
MoonCalc
mooncalc.orgAlso covers space · same kind of website
MoonCalc lets visitors explore lunar history with an online calendar and date controls.
24
Also covers space · same kind of website
NASA’s Image and Video Library combines searchable imagery and video with downloads and associated metadata.
No alternatives match this filter.
Alternatives to similar tools
Images24 alternativesHistory24 alternativesNASA24 alternativesVisible Earth24 alternativesNASA Ebooks24 alternativesJPL Photojournal24 alternatives
What is the best alternative to James Webb Space Telescope?
Based on features, tags and platforms, the closest alternatives to James Webb Space Telescope are ESAWebb, SpaceTelescopeLive, and SDO Dashboard.
Is there a free alternative to James Webb Space Telescope?
Yes. NASA Ebooks is free or offer a free plan.
Are there open-source alternatives to James Webb Space Telescope?
Yes: Webb Compare.
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