Latest, 15 Oct 2026:235 usersMove the mouse over the chart for any month
Ratings count
monthly, 8 months
Latest, 15 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Developer DOM Inspector
π DOM INSPECTOR - Professional Web Development Tool
A powerful, Chrome DevTools-style DOM inspector that helps developers and QA engineers visually analyze, debug, and understand web page layouts with precision.
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β¨ KEY FEATURES
π¦ VISUAL BOX MODEL INSPECTOR
- Color-coded margin, padding, border, and content layers
- Live overlay visualization while hovering
- Instant box model calculations
π¨ SMART CSS FILTERING
- Shows only non-default, meaningful CSS properties
- Groups properties by category (Layout, Typography, Flexbox, Grid)
- Toggle between filtered and complete CSS views
- Hex color codes for easy copying
- Syntax-highlighted, DevTools-style formatting
π FLEXBOX & GRID VISUALIZATION
- Visual direction indicators for flex containers
- Grid line overlays for grid layouts
- Auto-detection of layout types
π± RESPONSIVE DESIGN TESTING
- Test multiple device viewports (iPhone, iPad, Desktop)
- Custom viewport dimensions
- Zoom controls and rotation
- Side-by-side comparison mode
π DISTANCE MEASUREMENT TOOL
- Measure precise pixel distances between elements
- Horizontal and vertical spacing calculations
- Visual measurement lines with arrows
- Overlap detection
β¬ ELEMENT OUTLINE MODE
- Color-coded outlines for all page elements
- Quick visual hierarchy understanding
- Different colors for divs, semantic HTML, media, forms, etc.
π― PSEUDO-STATE INSPECTOR
- Force :hover, :focus, :active states
- View pseudo-state CSS rules
- Test interactive element styling
ποΈ INTELLIGENT ELEMENT SELECTION
- Multiple element tracking
- Breadcrumb navigation through DOM tree
- Click breadcrumbs to inspect parent elements
- History navigation (undo/redo for inspected elements)
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π PERFECT FOR
β Front-end Developers - Debug layouts and CSS issues quickly
β QA Engineers - Verify design implementation accuracy
β UI/UX Designers - Inspect spacing, typography, and colors
β Web Developers - Learn from other websites' CSS
β Students - Understand how websites are built
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π‘ HOW TO USE
1. Click the DOM Inspector icon in your toolbar
2. Choose from the floating menu:
β’ π Inspect Element - Click any element to analyze
β’ β¬ Outline All - See page structure at a glance
β’ π Measure Distance - Calculate spacing between elements
β’ π± Responsive Mode - Test different screen sizes
3. View detailed CSS information in the panel
4. Copy CSS with one click
5. Navigate element hierarchy via breadcrumbs
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β‘ PERFORMANCE OPTIMIZED
- Lightweight and fast
- No page reload required
- Works on any website
- Clean UI that doesn't interfere with your work
- Easy cleanup with one click
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π EDUCATIONAL VALUE
Perfect for learning CSS! See exactly how professional websites implement:
- Flexbox and Grid layouts
- Responsive designs
- Typography systems
- Spacing scales
- Color schemes
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π PRIVACY & PERMISSIONS
- Only activates when you click the icon
- No data collection
- No external requests
- Works completely offline
- Open source and transparent
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π KEYBOARD SHORTCUTS
- ESC - Exit inspection mode
- C - Copy CSS of hovered element (during inspection)
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π WHY CHOOSE DOM INSPECTOR?
Unlike browser DevTools:
β Simpler, focused interface
β Visual box model overlays
β Smart CSS filtering (no noise)
β Built-in responsive testing
β Distance measurement tool
β Outline mode for quick understanding
β No learning curve
Unlike other extensions:
β More features (responsive mode, ruler, pseudo-states)
β Better CSS filtering (shows only relevant properties)
β Cleaner, modern UI
β Active development
β Professional-grade accuracy
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β UPCOMING FEATURES
- Screenshot capture
- CSS export to file
- Element comparison mode
- Animation inspector
- Accessibility checker
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π¬ SUPPORT & FEEDBACK
Found a bug or have a suggestion? We'd love to hear from you!
Visit our support page or leave a review.
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Made with β€οΈ for web developers worldwide.
Install now and start inspecting smarter!
Growth
Window
Users
Change
Ratings
Rating
7 days
+6
+2.6%
0
0.00
30 days
+23
+10.8%
0
0.00
6 months
+191
+434.1%
0
0.00
Chrome Web Store search rankings
Where Developer DOM Inspector appears when people search the store, with the 30 day change