1
James Webb Space Telescope
science.nasa.gov/mission/webbAlso covers space · same kind of website
NASA describes the James Webb Space Telescope as an observatory studying phases throughout the history of the universe.
Alternatives
The Best ESAWebb Alternatives in 2026
24 alternatives1 free · 1 open source
Looking for something like ESAWebb? 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.
ESA Webb shares news and images from the James Webb Space Telescope, including research observations.
Top picks at a glance
First suggestionJames Webb Space TelescopeNASA describes the James Webb Space Telescope as an…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 | James Webb Space Telescope | — | Not stated | Web |
| 2 | SpaceTelescopeLive | — | Not stated | Web |
| 3 | Webb Compare | — | Yes | — |
| 4 | ESA Hubble | — | Not stated | Web |
| 5 | Webb Compare | — | Not stated | Web |
| 6 | NASA | — | Not stated | Web |
| 7 | Transit Finder | — | Not stated | Web |
| 8 | ESA | — | Not stated | Web |
| 9 | History | — | Not stated | Web |
| 10 | Russian Space Web | — | Not stated | Web |
All ESAWebb 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
Also covers space · open source
Webb Compare lets visitors compare images from the James Webb Space Telescope with earlier telescope images.
4
ESA Hubble
esahubble.orgAlso covers space · same kind of website
ESA Hubble shares science releases and discoveries from the Hubble Space Telescope.
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
NASA
nasa.govAlso covers space · same kind of website
NASA.gov shares news, images, and videos about space exploration, scientific discovery, and aeronautics.
7
Transit Finder
transit-finder.comAlso covers space · same kind of website
Transit Finder helps plan observations of the International Space Station by location, elevation, and date.
8
ESA
esa.intAlso covers space · same kind of website
The European Space Agency portal shares current news, strategy, and information about its programs.
9
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.
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
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.
12
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.
13
Space.com
space.comAlso covers space · same kind of website
Space.com publishes news about space exploration, astronomy, and related innovation.
14
Home Page
worldwidetelescope.org/homeAlso covers space
WorldWide Telescope is a browser-based suite for showcasing astronomical data and imagery, rather than a physical telescope.
15
Images / Videos
jda.jaxa.jp?lang=eAlso covers space · same kind of website
JAXA Digital Archives offers images from its collection, including material about launch vehicles and space missions.
16
Sen
sen.comAlso covers space · same kind of website
Sen provides live 4K video views of Earth captured by its satellites in space.
17
Also covers space · same kind of website · free
NASA e-Books provides a catalog of electronic books published by the space agency.
18
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.
19
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.
20
ISS Tracker
isstracker.pl/enAlso covers space · same kind of website
ISS Tracker shows the location of the International Space Station and other satellites on a live map.
21
ISS Sim to SPACEX
iss-sim.spacex.comAlso covers space · same kind of website
Practice manually docking a SpaceX Dragon 2 vehicle with the International Space Station in this simulator.
22
Space Notices
space-notices.comAlso covers space · same kind of website
Space Notices lists upcoming rocket launches and spaceflight events, alongside recent launches.
23
Gunter's Space Page
space.skyrocket.deAlso covers space · same kind of website
Gunter’s Space Page provides information about space missions, launch vehicles, satellites, and astronautics.
24
SpaceSim
spacesim.coAlso covers space · same kind of website
Explore the Solar System, change time, and inspect worlds in this browser-based 3D space simulation.
No alternatives match this filter.
Alternatives to similar tools
History24 alternativesNASA24 alternativesJames Webb Space Telescope24 alternativesSDO Dashboard24 alternativesJPL Photojournal24 alternativesJPL Images24 alternatives
What is the best alternative to ESAWebb?
Based on features, tags and platforms, the closest alternatives to ESAWebb are James Webb Space Telescope, SpaceTelescopeLive, and Webb Compare.
Is there a free alternative to ESAWebb?
Yes. NASA Ebooks is free or offer a free plan.
Are there open-source alternatives to ESAWebb?
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