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Dev tools · alternatives · 2026

24 alternatives to Space Frontiers

Search research papers, books, patents, and public discussions. Get citable full text through the Machine Library web app, REST API, and MCP server.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1
    Fabric▲690

    Make notes, tasks, and search, directly from the terminal.

    2023 · fabric.so · its alternatives →

  2. 2
    Atlas of Spacefree▲770

    Hello HN! Sharing a recent side project of mine, the Atlas of Space, that I built out to explore the Solar System. As a long-time space nerd, I realized recently that I didn't have a good intuition on the scale, speed, and relative orientation of the celestial bodies around us. So over the break I built out a kind of spatial Wikipedia to click around and learn about planets, moons, asteroids, and other bodies orbiting the Sun. The physics is all simulated in the browser using simple Newtonian mechanics. There's a lot left to do from here, including modeling objects in non-Keplerian orbits…

    2025 · atlasof.space · its alternatives →

  3. 3

    Only AI agent automating research with 150+ academic tools

    2025 · scispace.com · its alternatives →

  4. 4

    🛰️🚀A list of awesome space-related packages and resources maintained by The Orbital Index - orbitalindex/awesome-space

    2019 · github.com · its alternatives →

  5. 5

    Understanding scientific articles can be tough, even in your own field. Trying to comprehend articles from others? Good luck. Enter, Now I Get It! I made this app for curious people. Simply upload an article and after a few minutes you'll have an interactive web page showcasing the highlights. Generated pages are stored in the cloud and can be viewed from a gallery. Now I Get It! uses the best LLMs out there, which means the app will improve as AI improves. Free for now - it's capped at 20 articles per day so I don't burn cash. A few things I (and maybe you will) find interesting: * This is…

    Feb 2026 · nowigetit.us · its alternatives →

  6. 6

    Semantic search for your technical documentation & knowledge

    2023 · gitbook.com · its alternatives →

  7. 7

    Browser-based MCP server testing with AI chat integration

    Oct 2025 · starbase.sh · its alternatives →

  8. 8

    Keep every project, chat, and file in one focused space

    Apr 2026 · its alternatives →

  9. 9
    Citable▲248

    Be in AI answers before your competitors. We do it for you.

    Jan 2026 · getcitable.com · its alternatives →

  10. 10

    Discover, annotate, write and share scientific research.

    2016 · sciwheel.com · its alternatives →

  11. 11

    A Twitter Spaces aggregator

    2021 · apps.apple.com · its alternatives →

  12. 12
    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 →

  13. 13

    Desktops in the cloud, now launched and great for teams

    2016 · paperspace.com · its alternatives →

  14. 14

    A Linux desktop in the cloud built for Machine Learning

    2016 · its alternatives →

  15. 15

    I’ve started building a distributed search engine for scholarly literature, which is completely contained within a browser extension: install it from the Chrome Web Store. It uses WebRTC and magic, and is currently, like, right now, used by 0 people. It’s you who can be number...

    2014 · juretriglav.si · its alternatives →

  16. 16
    Prism▲175

    A free, LaTeX-native workspace for scientists

    Jan 2026 · prism.openai.com · its alternatives →

  17. 17

    A community to showcase your interactive prototypes

    2014 · spaces.proto.io · its alternatives →

  18. 18WM
  19. 19
    AISpace▲86

    All frontier AI models in one space

    Mar 2026 · aispace.one · its alternatives →

  20. 20

    A web based mission control framework

    2016 · nasa.github.io · its alternatives →

  21. 21

    AI Search integrated with notes, calendar, projects, etc

    2025 · search.terramind.com · its alternatives →

  22. 22

    A search engine for space objects.

    2020 · space-search.io · its alternatives →

  23. 23

    Book unique meeting spaces throughout Europe

    2016 · spacebase.com · its alternatives →

  24. 24

    A catalog of space probes at the Moon and beyond

    2015 · spaceprob.es · its alternatives →

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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 →