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Chrome extension by seiri-dev · Productivity · Tools

  • Established publisher

A Chrome extension in Productivity · Tools with 27 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
27
Rating
not rated yet
Users, last 30 days
-3
Version
1.2.0
Updated in the store
2026-03-31
Published
2024-03-05
Manifest
V3
Browser access
5 permissions

How it has moved

Users
-3 since 03.10
23-30 · 14 readings
  1. 2026-10-0425
  2. 2026-10-0826
  3. 2026-10-0927
  4. 2026-10-1028
  5. 2026-10-1127
  6. 2026-10-1330
  7. 2026-10-1628
  8. 2026-10-1829
  9. 2026-10-1926
  10. 2026-10-2127
  11. 2026-10-2225
  12. 2026-10-2723
  13. 2026-10-2925
  14. 2026-11-0127
Users
-6 since 31.08
23-37 · 25 readings
  1. 2026-08-3133
  2. 2026-09-0234
  3. 2026-09-0433
  4. 2026-09-0534
  5. 2026-09-0836
  6. 2026-09-1332
  7. 2026-09-1730
  8. 2026-09-2137
  9. 2026-09-2535
  10. 2026-09-2634
  11. 2026-09-2830
  12. 2026-10-0425
  13. 2026-10-0826
  14. 2026-10-0927
  15. 2026-10-1028
  16. 2026-10-1127
  17. 2026-10-1330
  18. 2026-10-1628
  19. 2026-10-1829
  20. 2026-10-1926
  21. 2026-10-2127
  22. 2026-10-2225
  23. 2026-10-2723
  24. 2026-10-2925
  25. 2026-11-0127

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
  • See when you navigate between pages webNavigation
  • Schedule work to run later alarms
Show the remaining 2

The full permission history for this extension

What changed recently

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

The publisher

seiri-dev publishes 8 listings we track, 2k users between them. Listed website: chrome-tool.github.io.

  1. CSDN Unlocker seiri-dev · Make Chrome Yours · Accessibility · published 2024-05-07 1k users ★ 1.5
  2. Image Picker seiri-dev · Productivity · Tools · published 2026-03-24 583 users
  3. JSON Formatter seiri-dev · Productivity · Tools · published 2024-05-20 87 users
Show 4 more from this publisher
  1. Tab Manager seiri-dev · Productivity · Tools · published 2026-03-17 33 users
  2. OmniDebugger seiri-dev · Productivity · Developer · published 2024-04-06 13 users
  3. ScreenSnap seiri-dev · Productivity · Tools · published 2026-07-08 9 users
  4. QR Sweep Pro seiri-dev · Make Chrome Yours · Accessibility · published 2026-08-28 4 users

Like this one

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

  1. ZenSchedule Website Blocker Describes nearly the same job, smaller audience 3 users (last published figure) ★ 5.0
  2. Time Blocker Describes nearly the same job, smaller audience 104 users
  3. FocusBlock - Pomodoro Timer & Site Blocker Describes nearly the same job, smaller audience 4 users (last published figure)
  4. zenzen - Website Blocker & Productivity Timer Describes nearly the same job, smaller audience 21 users ★ 4.8
  5. FocusGuard - Website Blocker Describes nearly the same job, smaller audience 6 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.

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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/nnckgphookhplljppmnjamekphfmajgg/badge.svg)](https://extops.dev/extensions/nnckgphookhplljppmnjamekphfmajgg)

HTML

<a href="https://extops.dev/extensions/nnckgphookhplljppmnjamekphfmajgg"><img src="https://extops.dev/extensions/nnckgphookhplljppmnjamekphfmajgg/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.

Where the data comes from: how the catalog is built