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. DataInStructures, interactive analysis of data structures launched in 2016; newer entries below may have overtaken it.

1. 1
   Purely Functional Data Structures▲61

   A guide to functional programming

   2016 · amazon.com · its alternatives →

2. 2
   Collection of animated algorithms and data structures▲139

   Visual explanations of Algorithms and Data structures

   2020 · chrislaux.com · its alternatives →

3. 3
   Datamatic▲156

   Editable data visualizations for the web

   2017 · datamatic.io · its alternatives →

4. 4
   A Pattern Language▲68

   Applying Patterns to Solve Design Problems

   2015 · amazon.com · its alternatives →

5. 5AI
   An Interactive Explanation of the Trie Data Structure▲12

   2017 · trie.now.sh · its alternatives →

6. 6
   MatrixDS▲79

   The data community's workbench

   2018 · its alternatives →

7. 7
   Data Analysis with Open Source Tools▲69

   How to think about data

   2015 · amazon.com · its alternatives →

8. 8
   An Elementary Introduction to the Wolfram Language▲60

   Stephen Wolfram's new book on the Wolfram Language

   2015 · wolfram.com · its alternatives →

9. 9
   I Wrote a 680-Page Interactive Book on Data Structures and Algorithms▲29

   Hello HN! I’m Elias. I’ve been an educator in Engineering and Computer Science for some years, and I'm always looking for ways to make learning more engaging and hands-on. A few months ago, I started experimenting with the idea of a book that changes and evolves as you interact with it. It started with a chapter on sorting but that snowballed into a 22-chapter interactive book. My objective in writing this book, was to introduce a more interactive format for technical books that doesn't require internet access, that is lightweight, comprehensive, cross-platform, and can provide a better…

   2025 · cartesian.app · its alternatives →

10. 10
    Pipelines: framework and language for crafting data pipelines▲5

    An experimental programming language for data flow - calebwin/pipelines

    2019 · github.com · its alternatives →

11. 11
    Open-source structured data profiling library▲7

    2022 · github.com · its alternatives →

12. 12LA
    Layers: A multidimensional code environment▲7

    2016 · indiegogo.com · its alternatives →

13. 13
    ZDS – Zig Data Structures▲5

    A collection of high-performance data structures for Zig.

    Dec 2025 · github.com · its alternatives →

14. 14ND
    New data visualization tool and why we made it▲9

    2014 · blog.spritesapp.com · its alternatives →

15. 15BV
    Beautiful Visualisations with the Chord Package▲6

    Beautiful Data Science

    2020 · shahinrostami.com · its alternatives →

16. 16
    My Notes on Data Structures and Algorithms▲10

    teaching data structures and algorithms to web engineers - j4orz/iruka

    2020 · github.com · its alternatives →

17. 17
    Lambda Lessons▲6

    Pattern-matching, first-class functions, and more in Haskell

    2014 · stevekrouse.github.io · its alternatives →

18. 18IC
    Interactive Course on JavaScript Closures▲7

    2021 · slip.so · its alternatives →

19. 19AO
    An Opinionated Project Template for Data Science in Python▲6

    2016 · drivendata.github.io · its alternatives →

20. 20
    JsonTree, a tool for turning JSON data into a collapsible html tree▲9

    A lightweight vanilla Javascript micro-library for making collapsible trees with JSON - MaxLeiter/jsonTree

    2016 · github.com · its alternatives →

21. 21
    Designing Data-Intensive Applications▲6

    Language-agnostic book about components of scalable systems

    2017 · a.co · its alternatives →

22. 22RA
    Recursi – a recursive memory/logic puzzle▲5

    2014 · lkozma.net · its alternatives →

23. 23TC
    The C++ Iceberg▲7

    2022 · fouronnes.github.io · its alternatives →

24. 24AT
    A Tableau+SQL course for data professionals▲8

    2021 · udemy.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 →