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Drop an MP3, a WAV or a video with music in it and get its tempo in seconds, with the beats marked on the waveform and a click to check them against.
To find the BPM of a song, drop the file here: the tempo appears in a few seconds, rounded to a tenth of a beat per minute, together with how sure the analysis is. Unlike most BPM detectors, it also reads the music inside a video file, so a clip from your phone or a screen recording works as well as an MP3.
Every result comes with proof. Press Play with Click on the beats turned on and you hear a click on every detected beat; if the clicks fall between the beats or run at twice the speed you feel, Half or Double corrects it, and Tap to check compares the result with your own tapping. When the number is right, Copy BPM puts it on your clipboard, or Cut clips to this beat carries the beat straight into beat sync.
The files are analysed in your browser and never uploaded, and you can drop several at once to get a list. If you have no file, only a song in your head or on the radio, tap tempo counts the BPM as you tap along.
Drop it onto Drop a song or a video, or press Choose files. MP3, M4A, WAV, FLAC and Ogg work, and so do MP4, MOV and WebM videos. Pick several at once to compare them; Add more files adds to the list.
The BPM appears with a confidence word, such as “Clear, steady beat”, and the beats are marked along the waveform.
Press Play with Click on the beats on. If it sounds like half or double the speed, press Half or Double. Tap to check lets you tap along and tells you whether your taps agree.
Press Copy BPM to paste it into a DJ app or a sequencer, or Cut clips to this beat to start a beat-synced video with the grid already in place.
The analysis listens for onsets: the instants where the sound changes sharply, such as a drum hit, a plucked string or the start of a chord. It measures how much the spectrum jumps from one moment to the next, which makes it sensitive to rhythm and less bothered by loud, steady sounds such as a sustained pad.
Rhythm is repetition, so the next step compares that onset curve with itself shifted by every plausible beat length. The shift that lines the curve up best is the beat period, and 60 divided by it in seconds is the BPM. Tempos near the middle of the usual range are slightly favoured, and the result is checked against half and double the speed, because a song at 140 BPM also lines up at 70. Finally the individual beats are placed on the strongest onsets that keep an even spacing.
A high confidence means the onsets repeat clearly and evenly, typical of dance, pop and rock. A lower one points to a song whose tempo drifts, a quiet or ambient track, or heavy syncopation; the number may still be right, but check it with the click.
Most online BPM finders only accept audio, so people first rip the soundtrack out of a video. That step isn’t needed here: open the MP4, MOV or WebM itself, and the tool decodes only its sound and analyses that. This is handy for a dance clip you want to recreate, a reel whose music you want to match, or your own footage of a band.
| Style | Typical BPM | Felt as |
|---|---|---|
| Ballads and slow soul | 60–80 | A calm walk |
| Hip-hop | 80–100 | A relaxed nod, often felt at half time |
| Pop and rock | 100–130 | A brisk walk |
| House and techno | 120–135 | Four steady kicks a bar |
| Drum and bass | 160–180 | Often heard as 85–90 |
The last column is the reason Half and Double exist: a drum and bass track at 174 BPM sounds, to many listeners, like 87. Neither answer is wrong; they describe the same pulse at two levels. Choose the one that matches how you want to count, or how your other software expects it.
Both describe the same pulse: one counts every beat, the other every second beat. Tempo detection sometimes lands on the slower level, especially with hip-hop or drum and bass. Press Double (or Half the other way) to switch.
Not by pasting a link: the tool never fetches anything from the internet, it only reads files you open. If you have the song or a video of it on your device, open that file.
On music with a steady beat the tempo is usually exact to within a fraction of a BPM, and in tests on click tracks every beat landed within 20 milliseconds. Songs that speed up, played freely, or with long quiet intros are harder, which is why the result shows a confidence and a click to check.
Yes. Choose several files together and each gets its own result in a list; Add more files adds to it.
Not yet; it measures tempo and beats only.
No. The file is decoded and analysed by your browser on your own device and is never sent anywhere.
Tap along to the song on tap tempo; after eight or so taps the BPM settles.