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Markr — Web Highlighter & Annotator

Chrome extension by altrudevelop · Productivity · Tools

A Chrome extension in Productivity · Tools with 3 users, barely installed.

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
3 (the store no longer states an audience; this is the last figure it published)
Rating
not rated yet
Users, last 15 days
+3
Version
1.0.4
Updated in the store
2026-06-01
Published
2026-04-18
Manifest
V3
Browser access
7 permissions

How it has moved

Users
+3 since 31.08
0-3 · 7 readings
  1. 2026-08-310
  2. 2026-09-033
  3. 2026-09-040
  4. 2026-09-060
  5. 2026-09-083
  6. 2026-09-100
  7. 2026-09-143
Users
+3 since 31.08
0-3 · 7 readings
  1. 2026-08-310
  2. 2026-09-033
  3. 2026-09-040
  4. 2026-09-060
  5. 2026-09-083
  6. 2026-09-100
  7. 2026-09-143

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.

  • See the address and title of every tab you have open tabs
  • Act on the current tab, but only after you click it activeTab
  • Add items to the right-click menu contextMenus
Show the remaining 4
  • Open a panel beside the page sidePanel
  • Store data in your browser storage
  • Store data in your browser without the usual size limit unlimitedStorage
  • Declares windows

The full permission history for this extension

What changed recently

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

The publisher

altrudevelop publishes 7 listings we track, 29 users between them. Listed website: altru.dev.

  1. Lado — Key & BPM Overlay altrudevelop · Productivity · Tools · published 2026-04-20 7 users
  2. Dweav AI SitePass Format altrudevelop · Productivity · Developer · published 2026-05-25 6 users ★ 5.0
  3. Anchor It altrudevelop · Productivity · Tools · published 2026-07-09 4 users
Show 3 more from this publisher
  1. Image Fit+ altrudevelop · Lifestyle · Art · published 2026-07-18 4 users
  2. Dweav Trace altrudevelop · Productivity · Developer · published 2026-05-13 3 users (last published figure)
  3. ChopShop Inc. — Northline Companion altrudevelop · Lifestyle · Games · published 2026-08-05 2 users

Like this one

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

  1. WebNotes: Webpage Highlighter & Notes – Local Search Describes nearly the same job, smaller audience 8 users
  2. Private Web Highlighter Describes nearly the same job, smaller audience 2 users ★ 1.0
  3. Marker — Highlight & Notes Describes nearly the same job, smaller audience 9 users
  4. MarkIt! Web Highlighter & Reader Describes nearly the same job, smaller audience 4 users (last published figure)
  5. Web Highlighter Describes nearly the same job, smaller audience 6 users (last published figure)

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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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.