One number to start from
Use the primary BPM to set a DAW project, align a loop, or begin a remix without manually counting every beat.
BPM Detector Online
Upload a song or loop to estimate tempo, review BPM confidence and nearby alternatives, then choose a practical value for editing.
Browser analysisTempo estimateNo credits required
BPM Detector capabilities at a glance
Know what goes into the estimate before you use it in a project.
- Input
- A browser-decodable audio file up to 100 MB
- Output
- Estimated BPM, confidence, and alternative tempos
- Workflow
- Choose a file, analyze the rhythm, review the result
- Privacy
- Audio is decoded and analyzed locally in the browser
A useful tempo estimate, not a black box
BPM Detector keeps the result small enough to act on while showing the uncertainty that matters for real songs.
Confidence stays visible
A rhythmic song with a clear pulse and an ambient recording do not produce the same level of certainty. The result makes that difference visible.
Half-time and double-time clues
Nearby alternatives help when a groove can reasonably be counted at two related tempos, a common issue with slow-feeling or fast-feeling tracks.
How to use a BPM Detector
The workflow is deliberately short because tempo detection is usually a first step in a larger music task.
- 01
Choose an audio file
Open an MP3, WAV, M4A, OGG, or another format supported by your browser. The file is not sent to a BizMuse processing API.
- 02
Run the analysis
The browser measures repeating energy changes across the decoded waveform and compares tempo candidates in a practical music range.
- 03
Review before editing
Use the main result when the confidence is strong. Check the alternatives when the song has a sparse beat, a pickup, or a half-time feel.
Where a BPM estimate helps
Tempo is useful when a song needs to meet another timeline, grid, or performance reference.
Loops and samples
Set the project tempo before stretching a drum loop, vocal phrase, or melodic sample.
Video timing
Plan cuts, motion accents, or lyric timing around a measured musical pulse instead of guessing from playback.
DJ and remix preparation
Compare a source track with a set or remix session and investigate alternate readings before committing to a grid.
Get a better BPM result
Automatic tempo detection is strongest when the input gives the rhythm a fair chance.
Prefer a full musical phrase
A short drum fill, a loose vocal pickup, or a single sustained note does not contain enough repetition for a reliable tempo estimate. Use a representative section or the full song when possible.
Check the groove by ear
If the result feels twice as fast or half as slow as the track, compare the alternatives. Some genres intentionally place the strongest snare or kick on a subdivision that changes how people count the beat.
Treat confidence as a guide
A high confidence result is a useful starting point, not a guarantee of the original producer's project tempo. Confirm against a downbeat, loop boundary, or DAW grid before release.
BPM Detector questions, answered
Direct answers about formats, estimates, privacy, and music workflows.
Continue the audio workflow
Move from tempo discovery to the next concrete music task.
Ready to check the tempo?
Start with a representative song section and use the estimate to set your next grid.
Detect BPM