Polypane Alternatives

The browser for designers and developers

paid $7.0 / Monthly

Develop responsive web-apps 5x faster!

Open Source free

Kimp is an unlimited design company, specializing in graphic design (including print and digital designs, custom illustrations, landing page designs and email designs) and video design.

Try for free Free Trial $599.0 / Monthly

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.

Visually style any website in your browser without writing CSS!

paid Free Trial $4.0 / Monthly

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

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

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