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Polypane

The browser for responsive design and accessibility testing

PaidAdded Jun 1, 2019

About

Polypane is a specialized browser built for web developers that shows multiple viewport sizes simultaneously, letting you see how your site looks across devices in real-time. It includes built-in accessibility testing, Lighthouse auditing, social media preview cards, visual regression detection, and detailed CSS debugging tools. Changes you make in one pane sync to all viewports instantly. Polypane replaces the tedious cycle of manually resizing browser windows to test responsive layouts.

Tags

responsive-designaccessibilitydeveloper-browsertestingcss-debugging

Origin Story

By Kilian Valkhof

The Problem

Testing responsive layouts means constantly resizing your browser window or using awkward DevTools emulation.

Building It

Launched 2019, steady growth as the go-to developer browser. Solo-founded product with strong profitability.

What It Means

Shows that a browser designed for developers can dramatically speed up responsive development and accessibility.

The Dream

Make every website responsive and accessible by giving developers better tools to see and fix issues instantly.

Pricing

ModelPaid
Starting at$10/mo

14-day free trial. Individual at $10/mo. Team at $14/user/mo. Enterprise custom. All plans include all features.

View pricing

Category

Design Ui

Problems Solved

  • Testing Responsive Design Is Tedious
  • Accessibility Auditing Complexity
  • Previewing Social Media Cards

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