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CalculaThor - Online toolbox

Chrome extension by Grégory Pairin · Productivity · Tools

  • Established publisher

A Chrome extension in Productivity · Tools with 43 users, barely installed. Audience over the last 30 days: +5.

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
43
Rating
not rated yet
Users, last 30 days
+5
Version
2.0.1
Updated in the store
2026-10-25
Published
2024-12-24
Manifest
V3
Browser access
1 permission

How it has moved

Users
+5 since 02.10
36-44 · 13 readings
2026-10-25: released 2.0.1
  1. 2026-10-0542
  2. 2026-10-0841
  3. 2026-10-0940
  4. 2026-10-1036
  5. 2026-10-1337
  6. 2026-10-1642
  7. 2026-10-1843
  8. 2026-10-2144
  9. 2026-10-2242
  10. 2026-10-2343
  11. 2026-10-2441
  12. 2026-10-2743
  13. 2026-10-3143
Users
+5 since 01.09
35-44 · 24 readings
2026-10-25: released 2.0.1
  1. 2026-09-0138
  2. 2026-09-0435
  3. 2026-09-0736
  4. 2026-09-0840
  5. 2026-09-1038
  6. 2026-09-1339
  7. 2026-09-1540
  8. 2026-09-2139
  9. 2026-09-2540
  10. 2026-09-2739
  11. 2026-09-2838
  12. 2026-10-0542
  13. 2026-10-0841
  14. 2026-10-0940
  15. 2026-10-1036
  16. 2026-10-1337
  17. 2026-10-1642
  18. 2026-10-1843
  19. 2026-10-2144
  20. 2026-10-2242
  21. 2026-10-2343
  22. 2026-10-2441
  23. 2026-10-2743
  24. 2026-10-3143

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.

  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 2.0.1

What changed recently

  1. Store badges changed
  2. Package size changed
  3. Supported languages changed (2 → 5)
Show the remaining 3
  1. Store description rewritten (58 → 108 characters)
  2. Renamed from "CalculaThor" to "CalculaThor - Online toolbox"
  3. Released version 2.0.1 (was 1.1.8)

The publisher

Grégory Pairin publishes 2 listings we track, 46 users between them. Listed website: calculathor.fr.

  1. Peripl Grégory Pairin · Productivity · Tools · published 2026-10-25 3 users

Like this one

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

  1. Tax Calculator Describes nearly the same job, smaller audience 70 users ★ 5.0
  2. Rahmi Multi Calculator Describes nearly the same job, smaller audience 2 users (last published figure)
  3. CalculatePilot - Quick Calculator Describes nearly the same job, smaller audience 3 users (last published figure)
  4. Tooliz: Screenshot, PDF, QR, JSON & 37 Productivity Tools Describes nearly the same job, smaller audience 8 users
  5. AgentCalc — 5,000+ Calculators Describes nearly the same job, smaller audience 3 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.

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Users and rating on Ext Ops Panel

Markdown

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HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-27. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built