Life & fun · alternatives · 2026

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. Blabr – Embedding scientific computation in your site launched in 2015; newer entries below may have overtaken it.

1. 1
   NotebookJS▲109

   Scientific computation for JavaScript

   2016 · datazar.com · its alternatives →

2. 2BS
   Blabr – Scientific Computing for the Web▲106

   2015 · blabr.io · its alternatives →

3. 3
   Datamatic▲156

   Editable data visualizations for the web

   2017 · datamatic.io · its alternatives →

4. 4SE
   SciZone – Embed scientific datasets and phenomena on the web▲6

   2015 · sci.zone · its alternatives →

5. 5
   OpenScience▲75

   The open-source AI workbench for scientific research

   27d ago · openscience.sh · its alternatives →

6. 6
   MatrixDS▲79

   The data community's workbench

   2018 · its alternatives →

7. 7
   Squints▲81

   Design tools for the live web

   29d ago · squints.app · its alternatives →

8. 8
   ContextsBasefree tier▲75

   Context Infrastructure for Coding Agents

   Sep 2026 · contextsbase.com · its alternatives →

9. 9
   PolicyViz: Chris Parmer from Plotly▲53

   The future of online data visualization tools

   2016 · policyviz.com · its alternatives →

10. 10TW
    The Web Synthetizer from Space▲8

    2017 · synthfrom.space · its alternatives →

11. 11DA
    DGM: A free online diagramming for the Web and AI▲5

    2024 · dgm.sh · its alternatives →

12. 12SA
    Sitestencil, a new way of building websites with flexbox and gutters▲9

    2016 · sitestencil.com · its alternatives →

13. 13
    Sonar▲14

    A linting tool for the web

    2017 · its alternatives →

14. 14
    Haystack – Simple graph abstraction over Hbase▲9

    2015 · github.com · its alternatives →

15. 15
    Torch▲4

    A scientific computing framework for LuaJIT

    2017 · its alternatives →

16. 16OA
    Obelix, a simple and extensible static site generator▲8

    2020 · obelix-site-builder.github.io · its alternatives →

17. 17HA
    HastySite – A self-contained static site generator▲6

    A minimalist but powerful static site generator

    2017 · hastysite.h3rald.com · its alternatives →

18. 18
    Facets▲6

    Open Source Visualization for Machine Learning Training Data

    2017 · github.com · its alternatives →

19. 19AL
    A Living Neural Web in HTML5 Canvas▲7

    Jun 2026 · techoreon.github.io · its alternatives →

20. 20LE
    Lyticus – Entry-level web analytics▲6

    2019 · lyticus.com · its alternatives →

21. 21BS
    Blabs: Space Math at NASA▲8

    2015 · spacemath.github.io · its alternatives →

22. 22
    Ivy▲6

    A static website generator built in Python

    2018 · its alternatives →

23. 23GA
    gallpeters – A website/API to create a simple, customizable world map▲8

    2022 · gallpeters.vercel.app · its alternatives →

24. 24RW
    Realtime Website Analytics for Free▲9

    2018 · statvoo.com · 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 →