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KeyController Plugin

Chrome extension by Signaturit Solutions S.L. · Productivity · Workflow

  • Trader

A Chrome extension in Productivity · Workflow with 80 000 users, an established extension. Audience over the last 30 days: unchanged.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
80 000 (the store no longer states an audience; this is the last figure it published)
Rating
5.0 (1 ratings)
Users, last 30 days
Unchanged
Rating, last 30 days
Steady over 30 days
Version
3.0
Updated in the store
2024-11-08
Published
2018-08-02
Manifest
V3
Browser access
4 permissions, 2 site patterns

How it has moved

Users
unchanged since 02.10
80k-90k · 3 readings
  1. 2026-10-2290k
  2. 2026-10-2480k
  3. 2026-11-0180k
Rating
unchanged since 02.10
reviewsrating 5.00 · 3 readings
  1. 2026-10-22reviews1rating5.00
  2. 2026-10-24reviews1rating5.00
  3. 2026-11-01reviews1rating5.00
Users
+20k since 31.08
60k-90k · 7 readings
  1. 2026-08-3160k
  2. 2026-09-0270k
  3. 2026-09-0770k
  4. 2026-09-0880k
  5. 2026-10-2290k
  6. 2026-10-2480k
  7. 2026-11-0180k
Rating
unchanged since 31.08
reviewsrating 5.00 · 7 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-07reviews1rating5.00
  4. 2026-09-08reviews1rating5.00
  5. 2026-10-22reviews1rating5.00
  6. 2026-10-24reviews1rating5.00
  7. 2026-11-01reviews1rating5.00

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

Every site you visit. This extension can read and change the content of any page you open.

  • Talk to an application installed on your computer nativeMessaging
  • See the address and title of every tab you have open tabs
  • Watch the network requests your browser makes webRequest
Show the remaining 1
  • Act on the current tab, but only after you click it activeTab

The full permission history for this extension

What changed recently

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

The publisher

Signaturit Solutions S.L. publishes 2 listings we track, 80k users between them.

  1. KeyController ChromeOS Signaturit Solutions S.L. · Productivity · Workflow · published 2022-10-12 278 users

Like this one

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

  1. KeyController ChromeOS Describes nearly the same job, smaller audience 278 users
  2. SealSign Central Key Control Describes a similar job, smaller audience 8k users (last published figure)
  3. Signer.Digital Digital Signature, PKI Describes a related job, with a large installed audience 3.0M users ★ 4.2
  4. Autenticou Signer Describes a related job, smaller audience 8 users
  5. iBPM Signer extension Describes a related job, smaller audience 9 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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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

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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 2026-10-24. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built