Improve your web dev workflow.

A browser with all the tools you need to build responsive, accessible and performant sites five times faster.

Great companies use Polypane

Developers and designers love Polypane

Here's what they have to say:

Polypane is easily one of the most useful tools for modern web designers and developers.

Stephen Hay Author of Responsive Design Workflow

It is convenient seeing your work in multiple responsive views at the same time. Love it, 💯

Sara Soueidan Independent front-end UI engineer, Speaker/Trainer

This thing is FAST and the synchronized scrolling works amazingly. Prepare to be impressed.

Vivian Guillen Frontend Developer & Curator at Tailwind Weekly

Polypane is fast, helps me catch issues and the meta information preview is awesome.

Graeme Fulton Founder at Letter

Using Polypane and woah this is awesome! It’s really slick and fast! I was just 5 minutes in and I already fixed a bug.

Sergio Mattei Founder at Makerlog

Polypane is a smart design environment where you can preview your designs across devices and viewports.

Colm Tuite Creator of Modulz

Polypane makes you 5 times faster.

Develop faster and catch more issues while saving time and having more fun. Here's how Polypane makes that happen.

Never resize your browser again

All the screen sizes you care about side by side. Use real device sizes, your responsive CSS breakpoints or any size you want.

Syncs all your interactions

Scrolling, clicking, hovering and typing, it happens in all screen sizes automatically.

Edit all viewports in one go

Make changes to all viewports at once using our Element inspector and Live CSS editor.

Social media previews

Pixel-perfect previews of your social media sharing cards. Tips on how to improve them included.

Intelligent Live and Hot reloading. For everyone.

Live reloading for any development environment, from plain HTML files to Wordpress to React or Vue. CSS and images even update without a page reload.

Powerful developer tools

The same Developer tools as Chromium. Including support for extensions like React, Vue, Angular, Svelte and more.

Dark mode media query ready

Dark mode and light mode side by side while you build your site. There is no faster way.

Full page screenshots

Best in class full-page screenshots, beating out both Chrome and Firefox with rendering accuracy. Or get a viewport or overview screenshot.

…And that's not even all.

Polypane has everything you need to make awesome web experiences.

Unlimited Screens
Scroll Syncing
Grid overlays
Keyboard Syncing
Device Presets
Freeform Resizing
Horizontal Overflow detection
Developer tools
Pixel-perfect Social Media previews
Horizontal Mode
Device emulation
Vertical Mode
Handoff support
Live Reloading
Accessibility Audits
Focus Mode
Page outlines
Live CSS Editing
Full Mode
Color Blindness Simulators
Full Page Screenshots
Visual design diffing
CSS Breakpoint Detection
Overview Screenshots
Touch emulation
Devtools Extensions
Custom Headers
Dark Mode
…And more to come!

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