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Permissions and history

Is Ruler safe to install?

Ruler asks for 3 browser permissions and 2 site patterns. We do not audit code and we do not judge intent; what we can show is what the listing declares and whether that has changed while we have been watching.

Ruler

Chrome extension · Productivity · Tools

Open in the Chrome Web Store
What the developer says, and 2 screenshots

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

At a glance

Facts, not a score: an ad blocker needs every page and a theme needs nothing, so one number would be wrong about both. Each fact links to its detail.

Site access
Access to every site
Data collection
Declares it collects none
Publisher
No store badges
Audience
375 users

What data it declares

The developer declares that it does not collect or use your data.

The developer also certifies that your data is not sold to third parties outside approved uses, not used for purposes unrelated to the extension's core function, and not used to decide creditworthiness or lending.

The listing links to a privacy policy.

This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.

What Chrome asks you to allow

When you add it, Chrome asks you to allow it to:

Derived from the manifest by Chrome's documented rules; the dialog's exact wording depends on your Chrome version and language. Chrome asks again if an update requests more.

What it can reach

Every site you visit. This extension can read and change the content of any page you open. What access to every site means

Worth knowing

Routine for an extension

How usual this is for its category

In Productivity · Tools, 20% of extensions ask for access to every site. This one: Access to every site.

The typical extension there declares 3 browser permissions; this one declares 3 browser permissions.

Counted over the live extensions of the same category after our latest full pass of the store. A share is context, not a verdict: what is normal depends on what the extension is for.

Who uses it and how it is kept up

375 users

Users
+17 since 31.08
355-395 · 32 readings
  1. 2026-08-31358
  2. 2026-09-04357
  3. 2026-09-05363
  4. 2026-09-06355
  5. 2026-09-08363
  6. 2026-09-09360
  7. 2026-09-10371
  8. 2026-09-13361
  9. 2026-09-15357
  10. 2026-09-17362
  11. 2026-09-20360
  12. 2026-09-21362
  13. 2026-09-25365
  14. 2026-09-26359
  15. 2026-09-28361
  16. 2026-10-04369
  17. 2026-10-08375
  18. 2026-10-09372
  19. 2026-10-10377
  20. 2026-10-13385
  21. 2026-10-16386
  22. 2026-10-18378
  23. 2026-10-19381
  24. 2026-10-21383
  25. 2026-10-22385
  26. 2026-10-23390
  27. 2026-10-24393
  28. 2026-10-25395
  29. 2026-10-27386
  30. 2026-10-29390
  31. 2026-11-01375
  32. 2026-11-05375

What the store shows

The store shows none of its badges on this listing. Most listings carry none.

Has it asked for more over time?

This is the question a permission list on its own cannot answer. An extension that shipped narrow and widened later is a different proposition from one that always asked for the same thing.

The permissions this extension requests have not changed since we started watching it.

Who publishes it

The store lists no publisher name, who publishes 6 listings we track. This listing has been in the store since 2024-05-06 and was last updated on 2024-05-06.

Similar extensions that ask for less

Listings close to this one in what they say they do, which declare less reach. Less reach is not a verdict on either: compare what each needs for the job.

  1. Page Ruler No site access · 3 permissions 500k users ★ 3.9
  2. Page Measure – Pixel Ruler, Spacing & Color Picker No site access · 3 permissions 9 users
  3. One Ruler Runs its code on every site · 3 permissions 5 users ★ 5.0

How to check or remove it in Chrome

  1. Type chrome://extensions in the address bar and find the extension in the list.
  2. Open its details. The site access setting shows where it can run; set it to run only on click and it reaches a page only after you press its icon.
  3. To uninstall it, choose Remove on the same page.

Questions people ask

What can Ruler access?
Every site you visit. This extension can read and change the content of any page you open. It declares 3 browser permissions.
What data does Ruler collect?
The developer declares that it does not collect or use your data. This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.
Has Ruler asked for more permissions over time?
The permissions this extension requests have not changed since we started watching it.
Does Ruler publish a privacy policy?
Yes, the store listing links to a privacy policy.

We read the public store listing up to 2 times a day and keep what it declared. We do not install the extension, do not audit its code, do not judge its intent and publish no contact details for its developer. Last read on 2026-11-05.

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