Life & fun · alternatives · 2026

JWST Image Slideshow is a web application that displays photographs captured by the James Webb Space Telescope. Launched in August 2022, it cycles through images from the observatory's collection for viewing. The tool… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. JWST Image Slideshow launched in 2022; newer entries below may have overtaken it.

1. 1
   James Webb Telescope tracking REST API▲81

   Public REST API to track JWST's current status

   2022 · github.com · its alternatives →

2. 2
   James Webb Space Telescope Tracker▲6

   James Webb Tracker App

   2023 · jameswebbtracker.com · its alternatives →

3. 3
   A JWST/Hubble deepfield comparison on a zoomable/pannable map interface▲61

   Use the tool below to explore the galaxy cluster SMACS 0723, with images taken by the new James Webb Space Telescope and the Hubble Telescope.

   2022 · academo.org · its alternatives →

4. 4
   The current sky at your approximate location, as a CSS gradient▲788

   For HTML Day 2025 [1], I made a web service that displays the current sky at your approximate location as a CSS gradient. Colours are simulated on-demand using atmospheric absorption and scattering coefficients. Updates every minute, without the use of client-side JavaScript. Source code and additional information is available on GitHub: https://github.com/dnlzro/horizon [1] https://html.energy/html-day/2025/index.html

   2025 · sky.dlazaro.ca · its alternatives →

5. 5
   Planet Explorer▲150

   Interactive global satellite images

   2017 · planet.com · its alternatives →

6. 6
   gravity.js - Beta▲112

   Gravity WebGL experiment in the Solar System

   2016 · github.com · its alternatives →

7. 7
   Convert any screenshot into clean HTML code using GPT Vision (OSS tool)▲358

   Hey everyone, I built a simple React/Python app that takes screenshots of websites and converts them to clean HTML/Tailwind code. It uses GPT-4 Vision to generate the code, and DALL-E 3 to create placeholder images. To run it, all you need is an OpenAI key with GPT vision access. I’m quite pleased with how well it works most of the time. Sometimes, the image generations can be hilariously off. See here for a replica of Taylor Swift’s Instagram page: https://streamable.com/70gow1 I initially had a hard time getting it to work on full page screenshots. GPT4 would code…

   2023 · github.com · its alternatives →

8. 8MD
   My daughter and I made a site to explore the photos from the ISS▲528

   2020 · callumprentice.github.io · its alternatives →

9. 9
   The whole Solar System and every tracked satellite, live in the browser▲407

   24d ago · space.bl2.net · its alternatives →

10. 10
    Chronological List of All the James Webb Telescope Discoveries▲30

    James Webb Space Telescope Discoveries Tracker

    2023 · jameswebbdiscovery.com · its alternatives →

11. 11
    NASA Picture of the Day▲167

    Image of our universe every day on your Mac 🌌

    2019 · nasapicture.com · its alternatives →

12. 12
    himawari.js▲79

    Real-time images of Earth from the Himawari-8 satellite

    2016 · github.com · its alternatives →

13. 13
    Live Sun and Moon Dashboard with NASA Footage▲224

    Live NASA solar imagery in 12 wavelengths, the moon phase tonight for 200+ cities, and real space weather. Free on iOS and Android. No ads, no signup.

    Apr 2026 · lumara-space.app · its alternatives →

14. 14
    Telescope – an open-source web-based log viewer for logs in ClickHouse▲172

    Hey everyone! I’m working on Telescope - an open-source web-based log viewer designed to make working with logs stored in ClickHouse easier and more intuitive. I wasn’t happy with existing log viewers - most of them force a specific log format, are tied to ingestion pipelines, or are just a small part of a larger platform. Others didn’t display logs the way I wanted. So I decided to build my own lightweight, flexible log viewer - one that actually fits my needs. Check it out: Video demo: https://www.youtube.com/watch?v=5IItMOXwugY GitHub:…

    2025 · github.com · its alternatives →

15. 15
    Black-hole.js – Visualize black hole gravitational lensing in WebGL▲72

    Renders black hole gravitational lensing effects in an image canvas using WebGL, glfx.js, and numeric.js - cliffcrosland/black-hole.js

    2015 · github.com · its alternatives →

16. 16
    OpenMCT by NASA▲86

    A web based mission control framework

    2016 · nasa.github.io · its alternatives →

17. 17
    Spatium▲182

    Hi there, humans! I'm excited to announce Spatium! I'm a big fan of any topic related to our universe. I'm also a developer, so I've put these things together and I built this new tab Chrome Extension for space lovers, astronomy fans, and science geeks like me. If you enjoyed it, please spread some love <3 FEATURES • Space images • Every day, get a fascinating image of our universe. Enjoy pictures of stars, planets, moons, galaxies, nebulae, comets and more right on your browser tab. • Sun Widget • Find out when the sunrise, sunset, first and last light times will be precisely at your…

    2021 · spatium.earth · its alternatives →

18. 18TA
    Telescope, an open-source social news app built with Meteor▲222

    2012 · telesc.pe · its alternatives →

19. 19
    Fragment▲115

    Prismatic Photos

    2013 · pixiteapps.com · its alternatives →

20. 20AT
    A tiny JS library for real-time localization of eye pupils▲153

    2019 · tehnokv.com · its alternatives →

21. 21
    Urthecast Imagery▲69

    Beautiful satellite imagery every time you open a new tab.

    2015 · chromewebstore.google.com · its alternatives →

22. 22
    WebGazer.js▲157

    Eye tracking on the browser

    2016 · webgazer.cs.brown.edu · its alternatives →

23. 23
    lightGallery▲78

    Full-featured JavaScript image and video gallery

    2021 · lightgalleryjs.com · its alternatives →

24. 24
    JSON Web Token (JWT) Debugger by Rownd▲97

    Next-generation JWT debugger (with ChatGPT)

    2023 · jwt.is · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →