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BPM & Key Finder — Song Key & Tempo Detector

Chrome extension by Lacuna · Productivity · Workflow

A Chrome extension in Productivity · Workflow with 21 users, barely installed.

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
21
Rating
not rated yet
Users, last 15 days
+8
Version
1.0.0
Updated in the store
2026-07-28
Published
2026-07-28
Manifest
V3
Browser access
1 permission

How it has moved

Users
+8 since 01.09
13-21 · 6 readings
  1. 2026-09-0113
  2. 2026-09-0314
  3. 2026-09-0615
  4. 2026-09-0716
  5. 2026-09-0817
  6. 2026-09-1521
Users
+8 since 01.09
13-21 · 6 readings
  1. 2026-09-0113
  2. 2026-09-0314
  3. 2026-09-0615
  4. 2026-09-0716
  5. 2026-09-0817
  6. 2026-09-1521

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.

  • Store data in your browser storage

The full permission history for this extension

What changed recently

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

The publisher

Lacuna publishes 4 listings we track, 150 users between them.

  1. Video Speed Changer & Pitch Changer — Slow Down, Speed Up, Transpose Lacuna · Productivity · Workflow · published 2026-07-27 98 users
  2. Volume Booster & Equalizer — Bass Boost, Sound Booster Lacuna · Productivity · Tools · published 2026-08-06 20 users
  3. Strudel AI Agent — Live Coding Music Assistant for the Strudel REPL Lacuna · Productivity · Developer · published 2026-08-07 11 users

Like this one

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

  1. Key Detector – Musical Key & BPM Finder Describes nearly the same job, smaller audience 2k users ★ 4.3
  2. bpm-key-finder Describes nearly the same job, smaller audience 485 users
  3. Song Key Finder Describes nearly the same job, smaller audience 307 users ★ 5.0
  4. Tune KEY Describes nearly the same job, smaller audience 12 users ★ 5.0
  5. BPM & Key Finder — RysUpAudio Describes nearly the same job, smaller audience 135 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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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.