Developer browser that shows multiple viewports at once with built-in accessibility auditing.
Why we recommend it
Seeing every breakpoint simultaneously catches responsive bugs you would otherwise miss, and the accessibility simulations are the best in any browser.
Strengths
- All breakpoints visible at once
- Built-in accessibility and colour-blindness simulation
- Live reload across every pane
Drawbacks
- Paid subscription for a browser
- Resource hungry
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