Track Analyzer

Instant Detection

BPM, key, danceability in 1s, even offline.

Auto-Tagging & Rename

Tag and rename files with key & BPM info.

Industry Standard

Track Analyzer detecting BPM and key instantly from audio files

Track Analyzer auto-tagging and renaming audio files

	Track Analyzer	Mixed In Key	Rekordbox
Pricing
One-Time Purchase Buy once, own forever. No subscription required	$4.99	$58	Free / subscription
Core Features
Under 1 Second Per Track BPM + key + danceability in under a second, on-device		–	–
Key Detection
Danceability Score Ranks how energetic and dance-floor-ready each track is		Energy level rating	–
Write Metadata to File Saves BPM and key directly into your audio file tags			–
File Renaming Rename files using detected BPM, key, and custom format		–	–
Batch Analysis Analyze hundreds of tracks in a single session
Export to Spreadsheet Export analysis results as a table for sorting and filtering		–	–

Rated 4.5 out of 5 on the App Store

100% Dedicated

I got this app to make my imports to Traktor easier, it didn't quite do what I wanted but reaching out to the developer, they were open to my suggestions and feedback and now it writes BPM and Camelot keys to your tracks!

Sweet Boy GP – 🇺🇸 United States

Clean Interface

Clean and simple interface for finding and writing the BPM and Key information of audio files. Exactly what I was looking for.

Howie-44 – 🇬🇧 United Kingdom

What does Track Analyzer detect?

Track Analyzer detects BPM, musical key (in Camelot Wheel or Open Key notation), and a danceability score for each track. All three are analyzed in under 1 second per file.

Can I analyze multiple tracks at once?

Yes. Drag a folder or any number of files onto the app and it processes them all in batch, with minimal CPU and memory usage.

How does auto-tagging work?

After analysis, Track Analyzer can write the detected BPM and key directly into your audio file's metadata tags. This makes the data visible in Rekordbox, Serato, Traktor, and any other app that reads standard tags.

How does file renaming work?

You define a custom naming format using variables like BPM, key, title, and artist. Track Analyzer renames your files accordingly after analysis, so your library stays consistently organized.

What is the danceability score?

The danceability score rates how energetic and dance-floor-ready a track is, based on its audio characteristics. It helps you quickly identify high-energy tracks when building sets.