What are the best tools for testing responsive design?

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Nov 27, 2020

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8 Options Considered

Best tools for testing responsive design	Price	Last Updated
87 Screenqueries	-	Nov 23, 2020
-- LT Browser	Free/Paid	Nov 27, 2020
-- Viewport Resizer Bookmarklet	-	Aug 16, 2013
-- Firefox - Responsive Design View	-	Jul 10, 2013
-- Resizer	-	Mar 1, 2016

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score 11 · Answer 1

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score 19 · Answer 2

LT Browser

Top Pro

Add custom devices

There is an option to add custom devices. See More

Top Con

You can't choose or select any browser to test on

There is no option to test a website for iPhone XS Max on Safari at the moment. It will be great if we get this feature! See More

Romila De's Experience

I personally love LT browser because of the simplicity it offers. The tool makes responsive testing an easy task, with its clean UI. The tool helped us testing our clients websites on larger resolutions with custom device options. My team has benefited a lot in terms of time consumption on responsive testing tasks. As we could test on pre-installed mobile browsers, compare and mark errors with easy sharing options using Asana. Great to see it integrates with Lighthouse to provide real time performance statistics of our website based on the devices we select to test on. See More

Top Pro

Built-in developer tools for quick debugging

Top Con

Need option to add more devices on comparison screen

Elma Sekar's Experience

LT browser has simplified the process for responsive testing by offering an intuitive interface with side by side comparison view and mirrored interactions. Input the link you want to test, select the devices, compare them alongside and see how your website reflects. That’s it! All simplified! Point to mention here is the screen touch mode where you can analyse the behavior of your website imitating finger touch scroll and refactor for better performance. If you are a developer, this tool will be of great help to improve the efficiency of your code as it offers tools to debug on the go and you can even perform local page testing with just your localhost URL! Even our designing team uses LT Browser to visualize whether a webpage is as per the design document over various screen resolutions. An innovative tool team LT browser! See More

Top Pro

Create your own Custom Device

Matt D Burch's Experience

LT browser is one such tool that my team looks forward to performing responsive testing. Considering the broad audience we cater as an ecommerce platform, we need to stay ahead of the game and find bugs before our users bounce due to UI bugs. LT browser has been an ease of experience for the team to perform testing on latest mobile devices. We could start testing our web pages on local environments by simply adding the URL. Also, provides two device comparison views with mirroring actions. However, the feature that made a difference for us was the developer tools where we could make changes and see them reflecting on the go. See More

Top Pro

One Click Bug logging

You can easily mark bugs and share it with team on any bug tracking tool of your choice. See More

Thelma Powell's Experience

LT browser has helped us visualize websites on the latest devices, and this has been an exciting feature to showcase to our clients. We could screengrab the latest devices within no time and can easily share it with clients. The interface is straightforward to get going with responsive testing. Any bugs we discover can be shared across the team using JIRA which saves us a lot of time and avoids manual work. We could also perform local testing without even installing any extensions, a beneficial and essential feature. Thanks LT browser Team! See More

Top Pro

Scroll Sync

Alina Novikava's Experience

Responsive testing can be a really daunting task. To ensure that all media queries are working properly for specific screen sizes is bound to be time consuming. However, LT browser has made the task comparatively easy for me and my team. It enabled us to test on multiple pre installed devices in no time. Plus, we can test over 2 devices at the same time in a side by side view. Our development team relies heavily over this tool since it offers hassle-free local testing experience, supports hot-reloading and offers developer tools to help us debug any UI bug on the go. Even our design team loves the LT browser due to its intuitiveness. They are always intrigued to check if the changes are rendering well and as per the design or not after every release cycle. With LT browser, they can do it easily without having to install anything or dealing with developer tools mobile-view debugging. See More

Top Pro

Mirrored interactions

Every click and navigation over one device is automatically replicated over the other devices in real time. See More

Lee Jelley's Experience

As a developer I can say LT browser is the perfect tool to help you write clean code and get to a point where the website would be responsive. One of the core reasons for this is the ability to test your website locally without having to install any extension. Just type in the localhost URL and you can view the website. This feature has been very helpful for me to write better code and also our test team, as the UI is very neat and offers a device comparison view. Additional points to the inbuilt debugging, where errors can be changed and validated on the go. See More

Top Pro

Test Instantly on Different Device Viewports

KindChloris's Experience

We compared numerous responsive testing tools, however, the efficient scroll sync in LT browser was a clear winner for us. The mirrored interactions allowed us to compare our website in a side by side view over numerous devices. The feature has been a time saver for us. Kudos to LambdaTest. See More

Top Pro

Supports Hot Reloading For React

DeliberateKupala's Experience

better ui/ux. easy to use and solves all the problems on local machine See More

Top Pro

Simulate Network conditions

SpontaneousAuahituroa's Experience

Wide range of browsers available. See More

Top Pro

Generate Page Performance Statistics Report

Surobhi Das's Experience

Wide rage of devices available. Fulfills all of our needs. See More

BrightTriglav's Experience

It is a very good tool to check the responsiveness of my live and locally hosted website. See More

Rahul jain's Experience

This is the best tool to see the mobile view of website on different screen sizes and resolutions. I don't have to switch between another device, I can test simultaneously by adding a new device. Having a good experience With LT Browser :) See More

Harshit Paul's Experience

The UI is neat and with great performance. Mirrored interactions helped me save a lot of time & its support for hot reloading is a major plus for a React fan like me. See More

See All

score 7 · Answer 3

Viewport Resizer Bookmarklet

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score 3 · Answer 4

Firefox - Responsive Design View

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score 1 · Answer 5

Resizer

Top Pro

Fast to switch between sizes

The UI for Resizer makes it really fast to see how your site looks on the various breakpoints. See More

score 2 · Answer 6

Responsitator

Top Pro

All tests in one page

Top Pro

No sign up

score 1 · Answer 7

slashB

Top Pro

You can take screenshots of visible viewports, or of entire pages

Top Pro

Built-in live reloading

Top Pro

When interacting with one viewport, slashB mirrors all your actions (click, focus, scroll, forms input) on the others

Top Pro

Test responsive websites on as many screen sizes as you want

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score 2 · Answer 8

ViewportSizer.com

Top Pro

Loads fast. No bloat.

8 Options Considered

My Recommendation for Screenqueries

My Recommendation for Screenqueries

My Recommendation for LT Browser

My Recommendation for LT Browser

Add custom devices

You can't choose or select any browser to test on

Built-in developer tools for quick debugging

Need option to add more devices on comparison screen

Create your own Custom Device

One Click Bug logging

Scroll Sync

Mirrored interactions

Test Instantly on Different Device Viewports

Supports Hot Reloading For React

Simulate Network conditions

Generate Page Performance Statistics Report

My Recommendation for Viewport Resizer Bookmarklet

My Recommendation for Viewport Resizer Bookmarklet

My Recommendation for Firefox - Responsive Design View

My Recommendation for Firefox - Responsive Design View

My Recommendation for Resizer

My Recommendation for Resizer

Fast to switch between sizes

My Recommendation for Responsitator

My Recommendation for Responsitator

All tests in one page

No sign up

My Recommendation for slashB

My Recommendation for slashB

You can take screenshots of visible viewports, or of entire pages

Built-in live reloading

When interacting with one viewport, slashB mirrors all your actions (click, focus, scroll, forms input) on the others

Test responsive websites on as many screen sizes as you want

My Recommendation for ViewportSizer.com

My Recommendation for ViewportSizer.com

Loads fast. No bloat.

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