polypane
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Description:
Browser for ambitious developers
Type: Cask  |  Latest Version: 28.0.0@0  |  Tracked Since: Dec 17, 2025
Links: Homepage  |  @polypane  |  formulae.brew.sh
Category: Developer tools
Tags: browser web-development testing responsive-design accessibility
Install: brew install --cask polypane
About:
Polypane is a premium web browser built specifically for web developers and designers. It allows you to preview your projects across multiple simulated devices simultaneously in a single window, complete with built-in accessibility and performance auditing tools. This accelerates the development workflow by eliminating the need to constantly switch between different browser tabs or external device simulators.
Key Features:
  • Multi-pane view for simultaneous device testing
  • Built-in accessibility and performance audits
  • Live reloading and CSS editing across all panes
  • Simulates various vision deficiencies
Use Cases:
  • Responsive web design testing
  • Cross-browser compatibility checks
  • Web accessibility auditing
Alternatives:
  • Brave – Free, general-purpose browser with dev tools, but lacks multi-pane synchronized testing
  • Firefox Developer Edition – Free browser with excellent dev tools, but requires manual window management for multi-device testing
Version History
Detected Version Rev Change Commit
Feb 10, 2026 10:32am 28.0.0 0 VERSION_BUMP db581b71
Dec 17, 2025 1:34pm 27.1.0 0 VERSION_BUMP ef48ba65
Jul 31, 2025 1:21pm 25.1.1 0 VERSION_BUMP d98d1c49
Jul 30, 2025 1:05pm 25.1.0 0 VERSION_BUMP 23b90333
Aug 1, 2024 12:56pm 20.1.2 0 VERSION_BUMP ad369b9f
Jul 29, 2024 3:44pm 20.1.1 0 VERSION_BUMP d89764e7
Jul 29, 2024 12:56pm 20.1.0 0 VERSION_BUMP 32103e17