What it does
AB TempoKey is a clean desktop utility for quickly checking the tempo and musical key of a song.
Drop in an audio file, run the analysis, then copy BPM, copy key, or export a report when you need a simple reference for your project.
Free desktop tool
AB TempoKey
Free tempo and key detection app for macOS and Windows.
Analyze local audio files, detect BPM and musical key, copy clean results, and export a simple report for music production, DJ preparation, remix planning, and catalog work.
Features
Fast song analysis in a focused interface
Detect BPM
Analyze the tempo of a local audio file and show a clear BPM result.
Detect musical key
Estimate the song key and display the result in a simple major / minor format.
Drag & drop audio
Load songs by drag and drop or through the Load Audio button.
Animated waveform analysis
See the song overview and analysis state in a visual waveform timeline.
Copy BPM / Key
Copy tempo and key results quickly for notes, DAW sessions, playlists, or reports.
Export report
Create a simple analysis report when you need to save or share the result.
How to use
Four simple steps
01
Drag or load an audio file.
02
Click Analyze Song.
03
Copy BPM or Key.
04
Export a report if needed.
Supported formats
Built for common audio files
Audio files
Use common desktop audio formats supported by the app and operating system.
macOS / Windows
AB TempoKey is prepared as a desktop app for macOS and Windows workflows.
Demo video
AB TempoKey usage demo
Watch a short walkthrough of the AB TempoKey interface and analysis flow.
Install notes
Unsigned app warnings
macOS
macOS may show a security warning for unsigned independent apps. If needed, use System Settings and Open Anyway after downloading from the official checkout link.
Windows
Windows SmartScreen may show a warning for a new independent app. Only install from the official AB Visual Studio checkout/download page.
Questions or setup help?
Contact AB Visual Studio through the main contact page.
Contact AB Visual StudioSupport / legal notes
Checkout, delivery, optional tip, licensing, and download details are handled through Lemon Squeezy.
AB TempoKey analyzes local audio files selected by the user. Users are responsible for using files they have the right to process.