Alternatives

Products that do what I built Allocator from an old spreadsheet to teach myself React does

1. 1IM
   I'm 15 and made a bedtime calculator with React JavaScript▲312

   2020 · sleepsources.com

2. 2IB
   I built a spreadsheet app with Python to make data science easier▲84

   2019 · hackernoon.com

3. 3RF
   React for Beginners▲178

   2015 · reactforbeginners.com

4. 4IM
   I made an easy-to-understand 6502 emulator in pure C▲88

   2013 · github.com

5. 5RP
   React patterns, techniques, tips and tricks▲162

   2017 · github.com

6. 6IC
   I created an algorithm to help me achieve Product-Market Fit▲151

   2019 · karma.fm

7. 7IM
   I made an interactive hex calculator in ncurses▲113

   2019 · github.com

8. 8IB
   I built an Android game▲114

   2013 · play.google.com

9. 9IM
   I made a simple generator to create UX design exercises to practice▲39

   2019 · fakeclients.com

10. 10NI
    Needed Ideas for things to build, so I built this▲41

    2013 · aswhoiwant.com

11. 11MW
    My weekend project, a graphics/cellular automata playground▲56

    2011 · demoseen.com

12. 12IB
    I built a free alternative stock data platform▲11

    2020 · quiverquant.com

13. 13IJ
    I Just Open Sourced a Game I Made a While Back▲37

    2011 · codebrief.com

14. 14IB
    I built an Android game▲37

    2014 · play.google.com

15. 15IM
    I made an app for designing Embedded Systems and code generation▲25

    2020 · fsmpro.io

16. 16IB
    I built a Macrodata Refinement game inspired by Severance▲5

    Fully leaned into vibe coding this time around. Started on v0, at some point ejected into running locally (getting v0's exported folder to run locally was a challenge), then iterated with Cursor over the course of a few hours. Really neat how much can be accomplished just conversationally these days.

    2025 · macrodata-refinement.arjit.me

17. 17IM
    I made a calculator builder to increase engagement and conversions▲9

    Hi HN, I am a solopreneur in the evenings and a software engineer during the day. In the past, I have created lots of calculators for my web projects and freelancing friends. These were pretty basic, but users always welcomed them. I also used currently available builders, but the problem was that they were either slow, broke on mobile devices, had nonsense page view limits, or were expensive. Some even ticked all those boxes. So I have decided to create my own, with a simple interface, and called it Creative Widgets (if it ever takes off, I plan to add more exciting stuff like charts, etc,…

    2024 · creativewidgets.io

18. 18IB
    I built a programming language for beginners▲25

    2020 · dip-lang.org

19. 19IB
    I built a browser based interactive React course▲24

    2020 · react-tutorial.app

20. 20IM
    I made a rational object for javascript▲13

    2012 · github.com

21. 21PB
    PC Builder Tool (My 1 year old side project)▲13

    2014 · assembleyourpc.net

22. 22IM
    I'm learning react. I made an app to easily create NSAttributedStrings▲14

    2017 · andresinaka.github.io

23. 23IB
    I built a tax calculator with JavaScript▲7

    2020 · taxmygig.com

24. 24IW
    I wrote a toy functional programming language▲5

    2020 · github.com

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