Extension Tracker

Area Contrast Checker - Drag to Scan WCAG & APCA Color Accessibility

136 users Rated 4.67 from 3 ratings Last updated 27 Aug 2026

By Liberogic Inc. Live in the Chrome Web Store kjemflinmhiljcdnngbacdddbhappdkg Last checked 27 Sep 2026, 04:23 UTC

The listing

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

Drag-to-scan A11y contrast tool. Pixel analysis works reliably on images and gradients. Supports WCAG 2.1/2.2 and APCA.Summary from the listing
Developer
Liberogic Inc.
Trader status
Declared a trader under EU law
Category
Productivity › Developer Tools
First published
22 Apr 2026
Last updated
27 Aug 2026
Version
1.5.0
Size
45.87 KiB
Minimum Chrome
88
Languages
2 languages

English, 日本語

Website
https://www.liberogic.jp/
Open in the Chrome Web Store ↗ View the code or download the CRX in CRX Viewer ↗
Users over time As shown on the Chrome Web Store

Tracking began on 27 Sep 2026. The chart appears after the second check.

Show the numbers
CheckedUsersRatingRatings
2026-09-271364.673
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
#58,462
by users, of 264,704 extensions
In its category
#5,195
of 27,614 in Developer Tools

What changed

Every change found on a check, newest first

No changes found since tracking began on 27 Sep 2026.

What it can access

From the extension's manifest, in plain language

Browser features
  • activeTabThe tab you're on, only after you click the extension
  • scriptingRun scripts on sites it can reach
  • storageSave settings and data in your browser

More from this developer

Other extensions from the same publisher account

ExtensionUsersRatingRatingsCategory
A11y Navigation Auditor - WCAG Web Accessibility Structure Audit & AI80 –– Developer Tools
やさしい日本語 ＆ 読みやすさ診断 〜情報のバリアをなくすアクセシビリティ支援〜39 –– Tools
All 3 extensions by Liberogic Inc. →

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 27 Sep 2026, 04:23 UTC; next check around 8 Oct 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Area Contrast Checker - Drag to Scan WCAG & APCA Color Accessibility” (kjemflinmhiljcdnngbacdddbhappdkg). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/kjemflinmhiljcdnngbacdddbhappdkg. Accessed 2026-09-28.
BibTeX
@misc{extensiontracker_kjemflinmhiljcdnngbacdddbhappdkg,
  title   = {Area Contrast Checker - Drag to Scan WCAG & APCA Color Accessibility (kjemflinmhiljcdnngbacdddbhappdkg)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/kjemflinmhiljcdnngbacdddbhappdkg},
  urldate = {2026-09-28}
}

The data is free to reuse under CC BY 4.0.

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