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404 Link Finder

Chrome extension by M45T3RY · Productivity · Developer

A Chrome extension in Productivity · Developer with 22 users, barely installed.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 3 screenshots

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

Users
22
Rating
not rated yet
Users, last 15 days
+12
Version
1.1.0
Updated in the store
2026-06-28
Published
2026-06-28
Manifest
V3
Browser access
4 permissions, 1 site pattern

How it has moved

Users
+12 since 01.09
10-22 · 8 readings
  1. 2026-09-0110
  2. 2026-09-0211
  3. 2026-09-0312
  4. 2026-09-0518
  5. 2026-09-0619
  6. 2026-09-0718
  7. 2026-09-1320
  8. 2026-09-1522
Users
+12 since 01.09
10-22 · 8 readings
  1. 2026-09-0110
  2. 2026-09-0211
  3. 2026-09-0312
  4. 2026-09-0518
  5. 2026-09-0619
  6. 2026-09-0718
  7. 2026-09-1320
  8. 2026-09-1522

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

Every site you visit. This extension can read and change the content of any page you open.

  • Manage your downloads downloads
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
Show the remaining 1
  • 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

M45T3RY publishes 5 listings we track, 1k users between them.

  1. Anti-Adblock Bypass M45T3RY · Productivity · Developer · published 2026-03-31 915 users ★ 5.0
  2. Google SERP Infinite Scroll M45T3RY · Productivity · Developer · published 2026-04-07 354 users ★ 5.0
  3. Bulk Search & URL Opener M45T3RY · Productivity · Developer · published 2026-02-23 137 users ★ 5.0
Show 1 more from this publisher
  1. StreamGuard - Anti Popup & Right-Click Unlocker M45T3RY · Productivity · Developer · published 2026-06-28 69 users ★ 3.0

Like this one

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

  1. Broken Link Checker – 404 & Dead Link Finder Describes nearly the same job, smaller audience 87 users (last published figure) ★ 5.0
  2. Broken Link Finder Pro Describes nearly the same job, smaller audience 24 users ★ 5.0
  3. Broken Link Checker Describes nearly the same job, smaller audience 4k users ★ 4.8
  4. Auto Link Checker Describes nearly the same job, smaller audience 249 users ★ 3.0
  5. Broken Link Detector - Scan & Highlight Error Links Instantly Describes nearly the same job, smaller audience 22 users ★ 5.0

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?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

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.