ReadKatoo: Customizable Read Mode
Chrome extension by Hyunsang Joo · Productivity · Tools
A Chrome extension in Productivity · Tools with 18 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 3 screenshots
Loading from the Chrome Web Store. Open the listing if it does not appear.
- Users
- 18
- Users, last 30 days
- +3
- Version
- 1.1.2
- Updated in the store
- 2025-06-16
- Published
- 2025-06-03
- Manifest
- V3
- Browser access
- 4 permissions
How it has moved
- 2026-10-0416
- 2026-10-0917
- 2026-10-1715
- 2026-10-2119
- 2026-10-2218
- 2026-10-2419
- 2026-10-2518
- 2026-10-2815
- 2026-10-2917
- 2026-10-3019
- 2026-11-0118
- 2026-08-3117
- 2026-09-0318
- 2026-09-0416
- 2026-09-0716
- 2026-09-0817
- 2026-09-1016
- 2026-09-1315
- 2026-09-1516
- 2026-09-1717
- 2026-09-2116
- 2026-09-2514
- 2026-09-2716
- 2026-09-2815
- 2026-10-0416
- 2026-10-0917
- 2026-10-1715
- 2026-10-2119
- 2026-10-2218
- 2026-10-2419
- 2026-10-2518
- 2026-10-2815
- 2026-10-2917
- 2026-10-3019
- 2026-11-0118
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.
-
Run its own code on the pages it can access
scripting -
Act on the current tab, but only after you click it
activeTab -
Put data on your clipboard
clipboardWrite
Show the remaining 1
-
Store data in your browser
storage
What changed recently
Nothing has moved on this listing since we started watching it.
The publisher
Hyunsang Joo publishes 3 listings we track, 36 users between them.
Like this one
Listings the catalog judges closest in what they say they do.
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CleanRead 11 users
-
CleanReader 25 users
-
Eggcracker Reader 7 users
-
TextYoga 4 users (last published figure)
-
ClearRead 12 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.
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[](https://extops.dev/extensions/acmdaoakiobmliocgpndbmifbhlgcppi)<a href="https://extops.dev/extensions/acmdaoakiobmliocgpndbmifbhlgcppi"><img src="https://extops.dev/extensions/acmdaoakiobmliocgpndbmifbhlgcppi/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 2026-11-01. We publish no contact details for extension developers.