Outliner CSS users statistics
By tarah · Chrome Web Store · Developer Tools
Outline every element to instantly debug layout and spacing - depth tinting, hover inspector, one-click selector copy.
Outliner CSS has approximately 10,000 recorded users on Chrome Web Store, ranking #354 of 2,952 tracked listings.
Rating: 4.50 / 5 from 17 ratings
About Outliner CSS
Outline every element to instantly debug layout and spacing - depth tinting, hover inspector, one-click selector copy.
Outliner CSS: Your Perfect Debugging Tool
Outline every element to instantly debug layout and spacing, depth tinting, per-site memory, one-click selector copy.
Key Features:
- One-click outlines in five colours
- Depth tinting to visualise nesting
- Hover to inspect, click to copy the selector
- Alt+Shift+O toggles the current page
- Your colour preferences sync, nothing about the sites you visit is ever stored
- No trackers, no external requests
What's new in 3.1
- Depth tinting fixed (silently broken in 3.0)
- DOM structure mode rebuilt: dashed context outlines, solid hover highlight, click-to-copy selectors
- New: keyboard shortcut and synced colour preferences
- Redesigned popup with automatic dark mode
- No site-access permissions and no stored site records: acts only when you invoke it, remembers only your colours
Lightweight by design: one injected stylesheet-style sweep, no trackers, no analytics, no external requests.
Description from the Chrome Web Store listing.
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Charts
Images: 30d · 1y · all time · 1600×900 dark
Adoption over time
7/30/90-day growth
Ranking history
Ratings over time
Listing placement
Listing placement
Filled points are observed values; hollow points come from Internet Archive snapshots of the listing page. Dashed segments span periods with no observations — values between points are not interpolated.
Each band is one page of 20. Users on a linear scale. Placement is projected from users, so it can differ from the marketplace's own sort order. Hover a dot to see the listing.
Recent observations
Full history (1)Similar Chrome Web Store Developer Tools plugins
All 20 Outliner CSS alternativesData source
Covers every Chrome Web Store extension with at least 100 users, found through the store's public sitemap. User counts are read from public listing pages. The 10% most-used extensions are refreshed daily, the next 40% weekly and the next 40% monthly; the least-used 10% are not refreshed. Google displays rounded user counts (and caps the display at 10,000,000+), so small changes may not be visible. Rating counts above 1,000 are rounded (e.g. 1.6K).
Listing: https://chromewebstore.google.com/detail/outliner-css/epodomlablfiehjgajhlhbdhidlkokaj. First seen Oct 21, 2026; last successful collection Oct 21, 2026. See the methodology.