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Guide lines

Chrome extension by imagentleman (José Antonio Chio) · Productivity · Developer

  • Featured
  • Established publisher

A Chrome extension in Productivity · Developer with 2 000 users, a small but real audience.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
2 000
Rating
4.3 (6 ratings)
Users, last 16 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
5
Updated in the store
2022-04-06
Published
2018-05-20
Manifest
V3
Browser access
3 permissions

How it has moved

Users
unchanged since 01.09
2k · 2 readings
  1. 2026-09-012k
  2. 2026-09-162k
Rating
unchanged since 01.09
reviewsrating 4.33 · 2 readings
  1. 2026-09-01reviews6rating4.33
  2. 2026-09-16reviews6rating4.33
Users
unchanged since 01.09
2k · 2 readings
  1. 2026-09-012k
  2. 2026-09-162k
Rating
unchanged since 01.09
reviewsrating 4.33 · 2 readings
  1. 2026-09-01reviews6rating4.33
  2. 2026-09-16reviews6rating4.33

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

imagentleman (José Antonio Chio) publishes 7 listings we track, 68k users between them.

  1. I'm a Gentleman imagentleman (José Antonio Chio) · Lifestyle · Art · published 2012-06-22 50k users ★ 4.2
  2. CSS Grid Overlay imagentleman (José Antonio Chio) · Productivity · Developer · published 2018-05-28 10k users ★ 3.9
  3. Typist imagentleman (José Antonio Chio) · published 2013-04-08 5k users ★ 3.4
Show 3 more from this publisher
  1. Hackris imagentleman (José Antonio Chio) · published 2013-05-01 429 users ★ 3.7
  2. Mases imagentleman (José Antonio Chio) · Lifestyle · Art · published 2013-04-22 111 users ★ 3.4
  3. Inspect: Invisión de rayos x imagentleman (José Antonio Chio) · Productivity · Developer · published 2018-05-28 35 users

Like this one

Listings the catalog judges closest in what they say they do.

  1. Frontend360: Precision Made Easy for Developers and Designers Describes nearly the same job, smaller audience 20 users ★ 5.0
  2. Page Align Rulers Describes nearly the same job, smaller audience 16 users
  3. Ruler Describes nearly the same job, smaller audience 25 users (last published figure)
  4. Grid Tool — Ruler & Guides Describes nearly the same job, smaller audience 14 users
  5. Measure-it Describes nearly the same job, with an established audience 70k users ★ 3.5

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.