DevRuler Pro

Unknown author · Developer Tools

Open in Chrome Web Store

Users

Avg rating

5.0

Ratings

Updated

Feb 17, 2026

Media

1 item

Description

Layout debugging: rulers, responsive testing, box model visualization, overflow detection & breakpoint diffing — no DevTools needed. Measure anything. Inspect everything. Test every breakpoint. All without opening DevTools. DevRuler Pro gives designers, developers, and QA engineers a floating toolbar that lives right on your page — pixel-perfect rulers, element inspection, responsive previews, and overflow detection in one lightweight extension.

History

30d 90d 1y all

rating_count is the Chrome Web Store ratings count, not a written-review count.

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
12
Description length
Characters in the listing description.
450
Media assets
Screenshots and videos on the listing.
1
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
1
Developer website
Listing exposes a developer website URL.
No
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
—
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
21.1

These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.