Pixefy - Responsive Design Checker by Pixefy
Preview and debug your website’s responsiveness across multiple devices in real-time, all inside one browser tab.
90 Users90 Users
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About this extension
Pixefy helps you spot layout issues instantly and fine-tune designs with live editing tools – right as you build.
It simplifies responsive testing by letting you preview, debug, and edit across multiple screen sizes in one place – no more switching tabs or resizing windows manually.
🚀 Key Features:
✔️ 🟢🟠 Live Responsive Previews – Test across multiple screen sizes side-by-side. Scroll, click, and interact on all screens simultaneously. Match real devices with optional browser bars + native UI spacing.
✔️ 🟠 Custom Screens & Presets – Create and save your own breakpoints, or use popular device resolutions out of the box.
✔️ 🟢 Screen Management – Rearrange, stack (horizontal/vertical), rotate, or zoom screens globally for a flexible workspace.
✔️ 🟢🟠 Inspect & X-Ray – Inspect styles, edit attributes live, and debug layouts with Visual Box Model, grids, and X-Ray overlays.
✔️ 🟢🟠 CSS Debugging Tools – View/edit computed styles, measure distances between elements, compare two elements, and track all changes in the Activity Tab.
✔️ 🟠 Content Editing – Instantly replace text or images, and check word/character counts directly on the page.
✔️ 🟠 Asset Downloads – Extract SVGs, PNGs, and other assets directly from Inspect Tool tabs.
✔️ 🟢 Screenshots & Annotations – Capture full pages, visible areas, or selected regions, then add notes, arrows, and highlights for clear, shareable feedback.
✔️ 🟠 User Agent Switching – Simulate different devices, browsers, or bots to see how your site adapts.
✔️ 🟠 Accessibility Tools – Test AA/AAA contrast ratios, extract all colors, and preview vision impairments with blindness simulations.
✔️ 🟢 Utilities – Live Dimension Widget (viewport width/height), copy any value or asset to clipboard, clear cache & refresh Pixefy.
✔️ 🟠 Themes – Switch between website's light and dark mode instantly.
✔️ 🟠 SEO Overview – Get a quick overview of key on-page SEO elements, including titles, meta descriptions, headings, and other essential page data.
✔️ 🟢 Touch Simulation – Simulate touch interactions to preview how websites behave on touch-based devices.
Pixefy is regularly updated based on user feedback.
Report issues or share ideas: www.pixefy.io/feedback
See what’s new: www.pixefy.io/changelog
It simplifies responsive testing by letting you preview, debug, and edit across multiple screen sizes in one place – no more switching tabs or resizing windows manually.
🚀 Key Features:
✔️ 🟢🟠 Live Responsive Previews – Test across multiple screen sizes side-by-side. Scroll, click, and interact on all screens simultaneously. Match real devices with optional browser bars + native UI spacing.
✔️ 🟠 Custom Screens & Presets – Create and save your own breakpoints, or use popular device resolutions out of the box.
✔️ 🟢 Screen Management – Rearrange, stack (horizontal/vertical), rotate, or zoom screens globally for a flexible workspace.
✔️ 🟢🟠 Inspect & X-Ray – Inspect styles, edit attributes live, and debug layouts with Visual Box Model, grids, and X-Ray overlays.
✔️ 🟢🟠 CSS Debugging Tools – View/edit computed styles, measure distances between elements, compare two elements, and track all changes in the Activity Tab.
✔️ 🟠 Content Editing – Instantly replace text or images, and check word/character counts directly on the page.
✔️ 🟠 Asset Downloads – Extract SVGs, PNGs, and other assets directly from Inspect Tool tabs.
✔️ 🟢 Screenshots & Annotations – Capture full pages, visible areas, or selected regions, then add notes, arrows, and highlights for clear, shareable feedback.
✔️ 🟠 User Agent Switching – Simulate different devices, browsers, or bots to see how your site adapts.
✔️ 🟠 Accessibility Tools – Test AA/AAA contrast ratios, extract all colors, and preview vision impairments with blindness simulations.
✔️ 🟢 Utilities – Live Dimension Widget (viewport width/height), copy any value or asset to clipboard, clear cache & refresh Pixefy.
✔️ 🟠 Themes – Switch between website's light and dark mode instantly.
✔️ 🟠 SEO Overview – Get a quick overview of key on-page SEO elements, including titles, meta descriptions, headings, and other essential page data.
✔️ 🟢 Touch Simulation – Simulate touch interactions to preview how websites behave on touch-based devices.
Pixefy is regularly updated based on user feedback.
Report issues or share ideas: www.pixefy.io/feedback
See what’s new: www.pixefy.io/changelog
Rated 5 by 1 reviewer
Permissions and data
Required permissions:
- Clear recent browsing history, cookies, and related data
- Block content on any page
- Access browser tabs
- Access browser activity during navigation
Optional permissions:
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.9
- Size
- 2.24 MB
- Last updated
- 7 days ago (Mar 11, 2026)
- Related Categories
- License
- All Rights Reserved
- Version History
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