Free Online BPM Detector
Detect the tempo of any song in beats per minute.
What is this tool
AudioToolKit detects the BPM of any song online for free, in your browser. Upload an MP3, WAV, M4A or other audio file and the detector analyzes its rhythmic onsets to report the tempo in beats per minute, usually within 1-2 BPM for clearly percussive music. No file is produced and the upload never leaves your device — you just get the number for your DAW.
Drag and drop your file here
or
MP3, WAV, M4A, AAC, OGG, FLAC, AIFF, AIF, OPUS, WMA, AMR — up to 25 MB per file
Output
Tempo in BPM
Accepted formats
.mp3, .wav, .m4a, .aac, .ogg, .flac, .aiff, .aif, .opus, .wma, .amr
Why use this free tool
Producers need the tempo before a remix or a mashup. The detector analyzes the onset pattern of the track and reports the tempo, so you can drop it straight into your DAW.
How does the free bpm detector work?
- 1
Upload the track.
- 2
Press Detect.
- 3
Read the tempo — no file is produced, just the number.
Frequently asked questions
How accurate is it?
It is an estimate from the track's rhythmic pattern — usually within 1-2 BPM for clearly percussive music. Ambient tracks with few onsets are harder.
Is the file uploaded?
No, detection runs in your browser.
What range does it cover?
60 to 200 BPM, the practical range for most music.
Related tools
More answers in the Help Center.