BPM & Key Finder

Find a song's tempo, key, beat positions and sections, and export the beats

Runs on cloud

Files are processed on Gitruck Cloud. You see the price first, and failed jobs are free.

Choose audio files or drop them hereMP3, WAV, M4A, FLAC, AAC, OGG and other common formats, up to 20 at a timeYou can also pick a video: your browser takes out the audio and uploads only that.

Example

The Gitruck Cloud docs have an interactive example: play the song and follow the beats, sections and style tags.See the examples

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Pricing

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How to use

1
Sign in, then choose or drop songs or videos. You can add several at once.
2
Turn on Style tags if you want them, then click Submit.
3
The tempo and key show right in the task list. Download the full JSON or a beat CSV.

FAQ

What does it detect?

Tempo (BPM), key (such as C major), the time of every beat and of each bar's first beat, sections, the chorus and the emotional peak. With Style tags on, you also get genre, mood and instrument tags.

What's the beat CSV for?

One row per beat with its time in seconds and whether it starts a bar. Use it to cut a video on the beat, or import it into your editor as markers.

Can I use a video?

Yes. Your browser takes out the audio first and uploads only that.

Does it cost credits?

It's billed by length (currently 10 credits per minute), prorated and rounded up, so 30 seconds costs 5 credits. Style tags cost nothing extra. Live prices and full rules are in Pricing on this page. You need to sign in; failed runs are refunded.