Hendel Audio is a simple BPM detector and key finder for music playing on your Mac
Hendel Audio is a simple BPM detector and key finder for music playing on your Mac.
Start analyzing from the menu bar while a song is playing, and Hendel Audio listens to system audio locally. The app detects tempo, musical key, and duration, then lets you copy the results into your music workflow with one click.
Features:
• BPM detector for currently playing system audio
• Song key finder for music on your Mac
• Tempo, key, and duration analysis
• Copy BPM, key, or duration with a click
• Optional media controls for play, pause, previous, and next
• Lightweight menu bar interface
• Local analysis only
• No audio recordings saved or uploaded
Hendel Audio is built for DJs, producers, musicians, and anyone who wants a quick way to check BPM and key while listening on macOS.
Privacy:
Audio is analyzed locally on your Mac. Hendel Audio does not save recordings, upload audio, track users, or collect personal data.
Permissions:
Screen Recording permission is required by macOS ScreenCaptureKit to access system audio. Accessibility permission is optional and only used for media control buttons.