Polypane Alternatives

The browser for designers and developers

paid $7.0 / Monthly

Develop responsive web-apps 5x faster!

Open Source free

Create FREE one-page sites with limey.io. Receive gifts. Capture leads. Share your favorite photos. All in a matter of minutes.

Visit website freemium $5.0 / Monthly (Lite paid plan)

LT Browser is a free dev friendly browser for developers and testers. You can see mobile view of website on different screen sizes and resolution on 50+ pre installed view ports. You can build, test and debug your website faster then ever.

BrowserStack is a software testing platform for developers to comprehensively test websites and mobile applications for quality.

Open Source freemium $29.0 / Monthly (Starts at single user plans and billed annually)

Live interactive cross-browser testing from your browser.

Perform Web Testing on 2000+ Browsers & OS

Open Source freemium $15.0 / Monthly

Use the design system you already have

Designed to test responsive websites on different devices.

Google Chrome is a fast, secure, and free web browser, built for the modern web. Give it a try on your desktop today.

Get the browsers that put your privacy first — and always have

Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.

Open Source

Easily create automated browser tests for your websites and web apps. Ensure everything works and looks the way it should. No coding required. 14 day free trial!

paid Free Trial $99.0 / Monthly (10,000 test runs per month; 5 member seats)

Instantly check or copy computed CSS from any element for only ~95$