Markr — Web Highlighter & Annotator
Chrome extension by altrudevelop · Productivity · Tools
- Established publisher
A Chrome extension in Productivity · Tools with 3 users, barely installed. Audience over the last 30 days: +3.
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)
- Users, last 30 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
- 2026-11-023
- 2026-08-310
- 2026-09-033
- 2026-09-040
- 2026-09-060
- 2026-09-083
- 2026-09-100
- 2026-11-023
A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times 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
What changed recently
Nothing has moved on this listing since we started watching it.
The publisher
altrudevelop publishes 7 listings we track, 40 users between them. Listed website: altru.dev.
-
Lado — Key & BPM Overlay 13 users (last published figure)
-
Anchor It 9 users (last published figure)
-
Dweav AI SitePass Format 5 users (last published figure)
Show 3 more from this publisher
-
Image Fit+ 4 users
-
Dweav Trace 3 users (last published figure)
-
ChopShop Inc. — Northline Companion 3 users (last published figure)
Like this one
Listings the catalog judges closest in what they say they do.
-
Staymark: Web Highlighter & Notes 2 users (last published figure)
-
Private Web Highlighter 6 users
-
Marker — Highlight & Notes 11 users
-
Marker – Highlighter & Notes 3 users (last published figure)
-
Annotator – Web Highlighter & Notes 258 users
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.
Want this mark on your extension in our catalog?
Verify that you are its author and you can show this mark on the card, with live banners for your site and README. How verification works
Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.
Add a badge to your README or site
The badge shows the audience and rating from our last pass over the store and links back to this page.
[](https://extops.dev/extensions/fepejpfndppimloffmmjlccoadeglhkl)<a href="https://extops.dev/extensions/fepejpfndppimloffmmjlccoadeglhkl"><img src="https://extops.dev/extensions/fepejpfndppimloffmmjlccoadeglhkl/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-09-10. We publish no contact details for extension developers.