---
title: "Liner. The Real Ruler – Chrome extension stats, history and permissions"
description: "10,000 users, rated 3.15 by 76 people. Version 3.0.0, updated 2023-01-20. Requests 3 permissions."
url: "https://extensiontracker.com/extension/amciopbgphikbcmaffbmmibnbpiokfic"
---

# Liner. The Real Ruler

Live in the Chrome Web Store.

- Users: 10,000
- Rating: 3.15 from 76 ratings
- Last checked: 2026-09-26 21:58 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #5,164 of 264,703 live extensions
- Rank in Developer Tools: #462 of 27,615

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Simple and convenient rulers for web developers. They help to create a perfect pixel web application.

- Extension ID: `amciopbgphikbcmaffbmmibnbpiokfic`
- Developer: [isdenya](https://extensiontracker.com/developer/u099f63b2ea51985289142ab9c6d75ee0)
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2014-07-15
- Last updated: 2023-01-20
- Version: `3.0.0`
- Size: 54.28 KiB
- Minimum Chrome: 88
- Languages (3): English, русский, українська
- Chrome Web Store: <https://chromewebstore.google.com/detail/liner-the-real-ruler/amciopbgphikbcmaffbmmibnbpiokfic>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Famciopbgphikbcmaffbmmibnbpiokfic>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-26 | 10,000 | 3.15 | 76 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-26.

## What it can access

From the extension's manifest, in plain language.

**Every website:** it can read and change your data on all the sites you visit.

### Sites where it runs scripts

- `<all_urls>`: Every website

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `storage`: Save settings and data in your browser
- `tabs`: Read the addresses and titles of your tabs

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 2026-09-26 21:58 UTC; next check around 2026-10-01.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “Liner. The Real Ruler” (amciopbgphikbcmaffbmmibnbpiokfic). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/amciopbgphikbcmaffbmmibnbpiokfic. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_amciopbgphikbcmaffbmmibnbpiokfic,
  title   = {Liner. The Real Ruler (amciopbgphikbcmaffbmmibnbpiokfic)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/amciopbgphikbcmaffbmmibnbpiokfic},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/amciopbgphikbcmaffbmmibnbpiokfic>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.