Overlay and label page structure — headers, navs, grids, flex containers and more. Built for layout replication.
Users
11
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#189K
#158K among extensions
Version
1.0.0
updated 16 Apr 2026
Users
monthly, 6 months
Latest, 16 Oct 2026:11 usersMove the mouse over the chart for any month
Ratings count
monthly, 6 months
Latest, 16 Oct 2026:0 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 Site Layout Inspector
Site Layout Inspector lets you visualise the structural layout of any webpage with color-coded overlays and labels. Click Activate and instantly see how a page is built — headers, footers, navigation, grids, flex containers, and more — all highlighted directly on the page.
HOW IT WORKS
1. Click the extension icon and press "Activate"
2. Color-coded overlays appear on the page showing element boundaries and tags
3. Hover over any overlay to see a detailed info panel with CSS properties
4. Toggle layer categories on/off to focus on specific element types
5. Click "Export Layout" to download a JSON file of the full page structure
SEVEN LAYER CATEGORIES
Each layer is color-coded and can be toggled independently:
- Structural (blue) — header, footer, main, section, nav, aside, article, and ARIA landmark roles
- Navigation (purple) — nav elements, menus, dropdown wrappers
- Content (green) — main content areas, hero sections, call-to-action blocks
- CSS Grid (orange) — any element using display: grid
- Flexbox (red) — any element using display: flex
- Media (teal) — images, videos, iframes, and embedded content
- Forms (amber) — form elements, input groups, fieldsets
HOVER INSPECTION
Hover over any overlay to see a details panel showing:
- Tag name, ID, and class list
- Display and position values
- Dimensions (width x height)
- Padding and margin values
- Font size and family
- Flex direction, grid columns (when applicable)
- Background color, text color, z-index, and overflow
EXPORT
Click "Export Layout" to download a JSON file containing every structural element on the page with its tag, classes, dimensions, and computed layout properties. Useful for design handoff and layout documentation.
PRIVACY
- All inspection runs locally in your browser
- No data is sent to external servers
- No tracking or analytics
- Scripts are only injected when you click Activate — never passively
Built for frontend developers, UI designers, and anyone who wants to understand how a webpage is structured.
Made by Cosmos Web Tech — Digital Solutions for Sydney Businesses
Growth
Window
Users
Change
Ratings
Rating
7 days
0
+0.0%
0
0.00
30 days
+1
+10.0%
0
0.00
6 months
+11
–
0
0.00
Chrome Web Store search rankings
Where Site Layout Inspector appears when people search the store, with the 30 day change