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Typing Test - KeyHero

Chrome Web Store listing by marc-marc

A Chrome extension with 100 000 users, a widely installed extension.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 4 screenshots

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

Users
100 000
Rating
4.1 (2 188 ratings)
Users, last 16 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
1.5.0
Updated in the store
2015-03-28
Published
unknown
Manifest
V2
Browser access
No permissions declared

How it has moved

Users
unchanged since 31.08
100k · 2 readings
  1. 2026-08-31100k
  2. 2026-09-15100k
Rating
unchanged since 31.08
reviewsrating 4.08 · 2 readings
  1. 2026-08-31reviews2.2krating4.08
  2. 2026-09-15reviews2.2krating4.08
Users
unchanged since 31.08
100k · 2 readings
  1. 2026-08-31100k
  2. 2026-09-15100k
Rating
unchanged since 31.08
reviewsrating 4.08 · 2 readings
  1. 2026-08-31reviews2.2krating4.08
  2. 2026-09-15reviews2.2krating4.08

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once 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.

We have not read this listing's manifest since we started keeping permission names. The counts above come from the last time we did.

The full permission history for this extension

What changed recently

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

The publisher

marc-marc publishes 4 listings we track, 106k users between them. Listed website: keyhero.com.

  1. Fat Cat Workout - 7 minute marc-marc · published 2013-09-29 5k users ★ 4.5
  2. Typing School - Teach Typing marc-marc · published 2015-10-02 620 users ★ 2.6
  3. Website to WordPress conversion tool marc-marc · published 2015-03-05 436 users ★ 2.3

Like this one

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

  1. Keyboard Typing Speed Test™ Describes nearly the same job, smaller audience 303 users ★ 5.0
  2. Typing Speed Practice Describes nearly the same job, smaller audience 4k users ★ 3.8
  3. KeyMastery Describes nearly the same job, smaller audience 8 users
  4. TTR Describes nearly the same job, smaller audience 1k users ★ 3.1
  5. Monkey-Type Describes nearly the same job, smaller audience 137 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.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.