Dev tools · alternatives · 2026

24 alternatives to Responder 2.0

Displays the sites grid & dimensions when toggled or resized

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Responder 2.0 launched in 2017; newer entries below may have overtaken it.

1. 1
   Responder▲234

   Displays the websites grid and the width/height when resized

   2017 · chromewebstore.google.com · its alternatives →

2. 2
   Simple Grid▲229

   Responsive & lightweight CSS grid for your website.

   2016 · simplegrid.io · its alternatives →

3. 3
   Dimensions Toolkit▲104

   Chrome Extension for designers to test responsive websites.

   2014 · its alternatives →

4. 4
   Responsive Viewer▲393

   View multiple screen dimensions in one view

   2019 · chromewebstore.google.com · its alternatives →

5. 5RV
   Responsivator - View/Share Responsive Sites▲61

   2012 · dfcb.github.com · its alternatives →

6. 6
   CSS grid in Webflow: release 2.0▲23

   Build responsive CSS grid layouts visually.

   2019 · its alternatives →

7. 7
   Responsivize▲109

   A must-have tool to develop responsive websites

   2021 · virejdasani.github.io · its alternatives →

8. 8
   Dimensions▲124

   A Chrome extension to measure anything

   2014 · chromewebstore.google.com · its alternatives →

9. 9RG
   Reddit Grid – A better way to browse subreddits that are very visual▲217

   2017 · redditgrid.com · its alternatives →

10. 10
    Gridifier 2.0▲75

    Async responsive HTML grids

    2015 · gridifier.io · its alternatives →

11. 11
    everysize▲207

    Check your responsive webpage in every size 🖥 💻 📱 👀

    2020 · its alternatives →

12. 12
    Responsive Design Checker▲173

    Check how responsive is your website across device sizes

    2018 · its alternatives →

13. 13
    Grid Layout Builder by Webflow▲194

    A completely visual way to build CSS grid–powered layouts

    2018 · its alternatives →

14. 14
    Screen Ruler▲236

    Measure the web

    2024 · chromewebstore.google.com · its alternatives →

15. 15
    Gridset▲75

    Web Layout Evolved.

    2014 · monotype.com · its alternatives →

16. 16
    Screen Size Map▲206

    An interactive map of screen sizes for responsive web design

    2019 · screensizemap.com · its alternatives →

17. 17
    Am I Responsive▲108

    see your website in multiple screen resolutions

    2014 · fireship.dev · its alternatives →

18. 18
    CSSViewer▲237

    A simple CSS property viewer

    2016 · chromewebstore.google.com · its alternatives →

19. 19
    Dimensions▲165

    A tool for designers to measure screen dimensions

    2019 · felixniklas.com · its alternatives →

20. 20
    Spacegrid CSS▲139

    A basic, responsive grid layout.

    2017 · github.com · its alternatives →

21. 21
    Grid Overlay Pro▲106

    A browser extension to visualize grid layouts on any webpage

    Feb 2026 · chromewebstore.google.com · its alternatives →

22. 22
    Responsinator▲64

    Designed to test responsive websites on different devices.

    2015 · its alternatives →

23. 23
    UI Tiles▲86

    Website Flowcharts.

    2014 · pixelbuddha.net · its alternatives →

24. 24
    Screen Ruler - for Google Chrome▲143

    Made to measure. Built for everything else.

    2024 · chromewebstore.google.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 →