About SongKeyFinder
SongKeyFinder is a free online tool: upload a track to detect its musical key, Camelot code and tempo in seconds.
We built it because the good versions of this tool were locked behind accounts, credits and subscriptions. Here there is nothing to sign up for. Upload, wait a few seconds, download. The site is paid for by the ads you see on the page.
How we handle your files
Files are processed on our own servers with open-source AI models; nothing is sent to third-party AI services. Uploads and results are deleted automatically after 24 hours. We don’t look at your files, train models on them, or share them with anyone.
The technology
SongKeyFinder is built on open research models: BS-RoFormer and Demucs for music separation, Whisper for speech recognition, Kokoro for text to speech, Real-ESRGAN for image upscaling and librosa for music analysis. Huge thanks to the researchers who publish their work openly.