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. Lightweight Flexbox responsive grid framework launched in 2015; newer entries below may have overtaken it.

1. 1FB
   Flexbox Builder, a tool for visualizing responsive flexbox▲6

   2019 · flexboxbuilder.com · its alternatives →

2. 2
   Simple Grid▲229

   Responsive & lightweight CSS grid for your website.

   2016 · simplegrid.io · its alternatives →

3. 3
   Webflow Flexbox UI Builder▲444

   Build flexible, responsive layouts - without writing code

   2016 · flexbox.webflow.com · its alternatives →

4. 4
   Flex▲325

   Flexbox's are a pain to write, Flex makes it easy.

   2019 · its alternatives →

5. 5AS
   A simple lightweight CSS grid, not a bloated framework▲134

   2012 · thisisdallas.github.com · its alternatives →

6. 6
   Waffle Grid▲280

   An easy to use flexbox grid system.

   2017 · lucasgruwez.github.io · its alternatives →

7. 7
   Responsive Grid System▲4

   Responsive Website Creation Tool

   2015 · responsivegridsystem.com · its alternatives →

8. 8
   Wing▲247

   A dead-simple, responsive, CSS framework

   2016 · its alternatives →

9. 9
   Gridifier 2.0▲75

   Async responsive HTML grids

   2015 · gridifier.io · its alternatives →

10. 10
    Navigable and zoomable grid built with React▲5

    2018 · github.com · its alternatives →

11. 11
    Flexpoint▲1

    A <3kb breakpoint-based flexbox grid implementation

    2016 · francisco.io · its alternatives →

12. 12
    Flexbox Grid▲106

    Grid based on CSS3 flexbox

    2016 · flexboxgrid.com · its alternatives →

13. 13
    SMART CSS GRID▲4

    Minimal Responsive Grid System

    2018 · vladocar.github.io · its alternatives →

14. 14
    Grid▲5

    A simple guide to responsive design.

    2016 · adamkaplan.me · its alternatives →

15. 15ES
    Extra Strength Responsive Grids▲33

    2013 · dfcb.github.com · its alternatives →

16. 16
    Automated Responsive Design Testing▲65

    A step-by-step guide to cross-browser layout testing

    2016 · tinnedfruit.com · its alternatives →

17. 17
    Turret▲115

    A Responsive Front-end Framework for accessible websites

    2015 · bigfishtv.github.io · its alternatives →

18. 18
    Flexbox Froggy▲97

    A game for learning CSS flexbox

    2015 · flexboxfroggy.com · its alternatives →

19. 19RM
    Responsive Magic - Design to Code that works.▲8

    2020 · responsivemagic.com · its alternatives →

20. 20
    Flexy Minimal CSS Framework▲7

    2018 · vladocar.github.io · its alternatives →

21. 21
    Apache Weex▲127

    A framework for building mobile cross-platform UIs

    2017 · incubator.apache.org · its alternatives →

22. 22
    Grid Lover▲68

    Typographic system with modular scale and vertical rhythm.

    2014 · gridlover.net · its alternatives →

23. 23
    Gridset▲75

    Web Layout Evolved.

    2014 · monotype.com · its alternatives →

24. 24
    Grid▲65

    Fit Ideas Together to Create Content Collages

    2014 · binarythumb.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 →