Key and BPM Finder – Song Key and Tempo Detector
This key and BPM finder detects the tempo, musical key, and Camelot code of any song in seconds. Drop an audio file to analyze your track privately in your browser without uploading.
What Is a Key and BPM Finder?
A key and BPM finder analyzes an audio track to determine two critical metrics: tempo in beats per minute and musical key. It also calculates the Camelot code, a standard notation system DJs use to plan smooth harmonic mixes between different songs.
The audio analysis runs locally in your web browser, ensuring your files never leave your device. Drop any track to view its key, base BPM, half-time, and double-time values in seconds.
Online BPM and Song Key Finder Features
Accurate Tempo Detection
Calculates the exact BPM of any track, including half-time and double-time variations.
Musical Key and Scale
Identifies the root key along with its major or minor tonal scale.
Camelot Wheel Values
Displays Camelot codes to help DJs arrange seamless harmonic transitions.
Browser Privacy
Analyzes audio directly on your device so nothing is uploaded to remote servers.
Fast Results
Delivers complete tempo and scale readouts in seconds without sign-up.
Free Analysis
Check as many songs, stems, or audio samples as you need at no cost.
How to Find the BPM and Key of a Song
Three simple steps to analyze your audio.
1. Add Audio
Select or drag an audio file directly from your computer or phone.
2. Run Analysis
The browser measures track tempo, key signature, and pitch in seconds.
3. Apply Data
Copy the BPM, key, and Camelot code, then analyze your next song.
Who Uses This Vocal and Song Key Finder?
DJs
Build fluid DJ sets by pairing matching tempos and harmonically compatible keys.
Music Producers
Match project tempo and song key to external samples or reference tracks.
Vocalists
Use the vocal key finder to check song pitch before rehearsing or transposing.
Musicians
Learn new chord progressions faster by knowing the exact root key and speed.
Video Creators
Time cut points to the beat or pair tracks with an AI music video maker.
AI Song Creators
Verify key and tempo for AI-generated tracks from AI Song before remixing.
Key and BPM Finder FAQ
Is this key and BPM finder free to use?
Yes. It is free, needs no account and runs entirely in your browser.
Are my songs uploaded to a server for analysis?
No. The file is analysed on your device and never sent anywhere.
How to find the BPM and key of a song?
Very accurate for songs with a steady beat and clear harmony. Free-tempo or very sparse music can be harder to read.
What are half and double time?
The same beat counted twice as slow or twice as fast. Some songs can be read either way, so both are shown.
What is the Camelot code?
A number and letter for each key that shows which keys mix well. Neighbouring codes blend smoothly in a DJ set.
Which formats are supported?
MP3, WAV, M4A, OGG and FLAC.
Can it detect key changes?
It reports the main key of the song. Songs that change key may show the most common one.
Does it work on phones?
Yes, in any modern mobile browser.
Analyze a Song
Drop a track and know its key and tempo in seconds.