Dev tools · 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. Flexi, a layout framework for Ember.js launched in 2016; newer entries below may have overtaken it.

1. 1
   Apache Weex▲127

   A framework for building mobile cross-platform UIs

   2017 · incubator.apache.org · its alternatives →

2. 2
   Blueprint▲203

   A React UI toolkit for the web

   2016 · blueprintjs.com · its alternatives →

3. 3
   Ember Weekend - The rule of least power▲71

   Routing RFC, slow JS on Android, HTMLBars, and page objects

   2015 · suara89.org · its alternatives →

4. 4
   Layout – Cropping is Hard▲68

   Figma, and the future of design tools

   2015 · layout.fm · its alternatives →

5. 5
   Patternry▲65

   A tool for building living UI libraries

   2014 · pathmode.io · its alternatives →

6. 6
   Drul.js – A simple library to create HTML grid layouts▲5

   2017 · github.com · its alternatives →

7. 7
   Reactive - 14: Wizards Of The Browser▲55

   Node packages, CSS Wizardry, RxJS Observables & Wombats

   2015 · its alternatives →

8. 8
   Percy for Ember▲16

   Continuous visual integration for Ember

   2016 · its alternatives →

9. 9TA
   Tweed – An OO JavaScript VDOM UI Library▲5

   2017 · medium.com · its alternatives →

10. 10MB
    Material Bread – A React Native Material 2.0 Component Library▲9

    2019 · material-bread.org · its alternatives →

11. 11TA
    Treeflex – A flexbox based library for drawing hierarchy trees with CSS▲6

    2018 · dumptyd.github.io · its alternatives →

12. 12
    Monkberry▲6

    A JavaScript library for building web user interfaces

    2016 · monkberry.js.org · its alternatives →

13. 13FA
    FlexMasonry – A lightweight masonry library powered by flexbox▲5

    2019 · flexmasonry.now.sh · its alternatives →

14. 14FB
    Flexbox Builder, a tool for visualizing responsive flexbox▲6

    2019 · flexboxbuilder.com · its alternatives →

15. 15
    Structor – a user interface builder for React▲7

    2015 · github.com · its alternatives →

16. 16
    Razorframe▲5

    a Node.js library for kickstarting real-time apps at scale

    2016 · github.com · its alternatives →

17. 17BA
    brite, a HTML5 MVC Framework (DOM centric approach to MVC)▲7

    2012 · britesnow.com · its alternatives →

18. 18OP
    Object Playground - The definitive guide to object-oriented JavaScript▲5

    2013 · objectplayground.com · its alternatives →

19. 19AT
    A template engine for Node.js that treats templates as modules▲6

    2019 · producthunt.com · its alternatives →

20. 20SA
    Sitestencil, a new way of building websites with flexbox and gutters▲9

    2016 · sitestencil.com · its alternatives →

21. 21
    Windsock.js – A flux inspired library for building web applications▲6

    2016 · github.com · its alternatives →

22. 22LF
    Lightweight Flexbox responsive grid framework▲5

    2015 · meetsally.com · its alternatives →

23. 23AR
    A React port of Sketch's grid system▲7

    2018 · medium.com · its alternatives →

24. 24
    bricklayer.js▲5

    Lightweight Cascading Grid Layout Framework

    2016 · bricklayer.js.org · 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 →