Life & fun · alternatives · 2026

Weightof.it is a tool that lets developers compare the file sizes of different JavaScript libraries side by side. It helps programmers choose libraries based on their impact on project size, which matters for load… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Weightof.it – Compare JavaScript libraries by file size launched in 2015; newer entries below may have overtaken it.

1. 1
   1 KB JavaScript library for building front end apps▲242

   1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp

   2017 · github.com · its alternatives →

2. 2
   1kb JavaScript library for building front end applications▲187

   1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp

   2017 · github.com · its alternatives →

3. 3
   1 KB JavaScript library for building applications▲116

   1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp

   2017 · github.com · its alternatives →

4. 4
   HyperApp – 1k JavaScript framework for building web applications▲303

   1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp

   2018 · github.com · its alternatives →

5. 5
   1 KB JavaScript framework for building front-end applications▲216

   1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp

   2017 · github.com · its alternatives →

6. 6JC
   JavaScript Cache Size Measurement▲42

   2016 · fromwhenceitca.me · its alternatives →

7. 7
   Moiva.io▲71

   A better way to evaluate and compare JS libraries

   2021 · its alternatives →

8. 8
   Searchbox▲134

   A lightweight JavaScript library for building search UIs

   2020 · opensource.appbase.io · its alternatives →

9. 9
   JsDiff▲76

   Solution to unbiased side by side comparison of JS libraries

   2020 · its alternatives →

10. 10
    Mitata – Benchmarking tooling for JavaScript▲93

    I always had a sweet tooth for how easy it is to use google/benchmark, but when working with js, current libraries didn't feel right and some were not even accurate enough, so I decided to create my own library to make JavaScript benchmarking tooling better. With more free time, I finally implemented all features I wished for in 1.0.0 and made a lightweight C++ single-header version for moments when google/benchmark is too much. Hope this library helps you as much as it does me.

    2024 · github.com · its alternatives →

11. 11
    Hyperapp – 1 KB JavaScript library for building front end apps▲69

    1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp

    2017 · github.com · its alternatives →

12. 12
    Popper.js, a 3KB library to manage tooltips and popovers▲169

    A JavaScript library to position floating elements and create interactions for them. - floating-ui/floating-ui

    2016 · github.com · its alternatives →

13. 13AJ
    A Javascript library to overcomplicate Five▲69

    2014 · jackdcrawford.github.io · its alternatives →

14. 14
    Libraries.io▲150

    The open source discovery of libraries for programmers

    2015 · libraries.io · its alternatives →

15. 15MA
    Made a small JavaScript benchmarking app – BenchJS▲33

    Run, compare, and share JavaScript benchmarks in your browser with BenchJS.

    2024 · benchjs.com · its alternatives →

16. 16MA
    Moon – a tiny 6kb Javascript library inspired by Vue.js▲31

    2017 · moonjs.ga · its alternatives →

17. 17DI
    Diff.io▲194

    2015 · diff.io · its alternatives →

18. 18DD
    Data Diff – compare tables of any size across databases▲127

    Gleb, Alex, Erez and Simon here – we are building an open-source tool for comparing data within and across databases at any scale. The repo is at https://github.com/datafold/data-diff, and our home page is https://datafold.com/. As a company, Datafold builds tools for data engineers to automate the most tedious and error-prone tasks falling through the cracks of the modern data stack, such as data testing and lineage. We launched two years ago with a tool for regression-testing changes to ETL code…

    2022 · its alternatives →

19. 19
    Umbrella JS, a 2.5kb jQuery alternative▲132

    :umbrella: Lightweight javascript library for DOM manipulation and events

    2018 · umbrellajs.com · its alternatives →

20. 20
    Matches.js -- Powerful Pattern Matching for Javascript▲96

    Powerful pattern matching for Javascript. Contribute to natefaubion/matches.js development by creating an account on GitHub.

    2012 · github.com · its alternatives →

21. 21
    Store.js v2.0 – Cross-browser storage for all use cases▲162

    Cross-browser storage for all use cases, used across the web. - marcuswestin/store.js

    2017 · github.com · its alternatives →

22. 22VJ
    validate.js - lightweight JavaScript form validation library▲102

    2011 · rickharrison.github.com · its alternatives →

23. 23
    Moon – 3kb JavaScript UI compiler▲71

    The purely functional user interface library that

    2018 · kbrsh.github.io · its alternatives →

24. 24
    JavaScript PubSub in 163 Bytes▲104

    pubsub in <100 bytes. Contribute to hassanshaikley/pico-pubsub development by creating an account on GitHub.

    2025 · github.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 →