Automatic song tempo detection
Upload a track and receive a BPM estimate without counting beats or installing a DAW.
Upload a song, loop, or recording to find its tempo in BPM, review confidence and half-time or double-time alternatives, and keep the file private in your browser.
Drop a song here to find its BPM, or or import from:
A BPM finder analyzes the rhythm of a song, loop, sample, or recording and estimates its tempo in beats per minute. The result helps you match tracks, set a project tempo, plan edits, or choose the right practice speed.
This page focuses on automatic tempo detection from an audio file. Musical key and Camelot analysis remain available in the separate Song Key Finder.
Upload a track and receive a BPM estimate without counting beats or installing a DAW.
Review whether the rhythmic pattern produced a high, medium, or low-confidence reading before using the result in a project.
Compare slower and faster interpretations when a track can reasonably be counted at two related tempos.
The selected audio is decoded and analyzed locally, so it does not need to be sent to a remote tempo-analysis service.
The BPM finder starts automatically after you choose a supported audio file.
Choose a track, loop, sample, rehearsal recording, or other audio file from your device or one of the available import options.
The browser decodes the audio and estimates the repeating musical pulse without requiring a manual tap sequence.
Check the detected BPM, confidence level, beat length, and half-time or double-time alternatives.
If the number feels too fast, too slow, or inconsistent with the song, compare the alternatives or confirm the pulse with BPM Tapper.
Tempo affects how audio aligns with other tracks, edits, movement, and musical timing.
Check the tempo of tracks before organizing a set, comparing transition ranges, or planning a BPM change.
Set a DAW session to the likely source tempo before stretching a loop, slicing a sample, or building an arrangement.
Use the BPM and beat length to align cuts, transitions, captions, animations, and visual effects with the musical pulse.
Compare songs for choreography or workout pacing, or choose a matching metronome speed for rehearsal.
Automatic tempo detection works best when the analyzed section contains a clear, repeating pulse.
Tracks with drums, percussion, a steady bass pulse, or repeated rhythmic accents usually produce stronger results than ambient intros.
A 70 BPM groove may also be counted at 140 BPM. Choose the interpretation that matches how you naturally count the main beat.
Live performances, rubato passages, tempo changes, and irregular rhythms may not have one fixed BPM for the entire recording.
Tap along manually when the confidence is low or when automatic analysis locks onto the wrong rhythmic subdivision.
These tools all work with musical timing, but they answer different questions.
| BPM Finder | BPM Tapper | BPM Changer | Song Key Finder | |
|---|---|---|---|---|
| Input | Uploaded audio | Your taps | Uploaded audio plus target BPM | Uploaded audio |
| Main result | Detected tempo | Manually measured tempo | Audio rendered at a new BPM | Key, scale, Camelot code, and BPM |
| Changes the audio | No | No | Yes | No |
| Best for | Songs, loops, samples, and recordings | Live audio or uncertain automatic results | Changing tempo to an exact target | Harmony and DJ key compatibility |
| Typical limitation | Can choose half or double the intended pulse | Depends on consistent tapping | Requires a clear target BPM | Key detection can be uncertain on atonal audio |
Start with BPM Finder when you have the file, use BPM Tapper to confirm an uncertain pulse, and move to BPM Changer only when you need to alter the tempo.
Upload the song to the BPM finder and wait for automatic analysis. The result shows the estimated beats per minute together with confidence, beat length, and half-time or double-time alternatives.
Tempo describes how fast or slow music moves. BPM, or beats per minute, is the standard numerical measurement used to express that tempo.
Some rhythms have more than one natural counting level. A song detected at 140 BPM may feel like 70 BPM in half-time, while a 70 BPM result may be counted at 140 BPM in double-time. Compare both alternatives and choose the one that matches the main pulse.
Automatic BPM detection is usually most reliable on songs with steady drums or a clear repeating rhythm. Ambient intros, live timing, heavy swing, tempo changes, and irregular meters can reduce confidence, so the result should be treated as an estimate.
Yes. The tool accepts common browser-readable formats including MP3, WAV, FLAC, AAC, OGG, M4A, and Opus. Actual decoding support can vary slightly by browser and operating system.
No. Files selected from your device are decoded and analyzed in the browser. Optional third-party import sources may follow their own transfer and privacy rules.
This page focuses on tempo. Use Song Key Finder when you also need the musical key, major or minor scale, Camelot code, and harmonic-mixing suggestions.
Use BPM Finder when you have an audio file and want automatic analysis. Use BPM Tapper when music is playing elsewhere, you are measuring a live performance, or you want to verify a low-confidence result manually.