Is it free?
Yes. You can search for a song, paste a Spotify link, or upload one audio file at a time to find BPM, song key, and Camelot notation without creating an account.
Tools
BPM and Key Finder
Search a song, paste a Spotify link, or upload audio to find BPM, song key, and Camelot notation before a DJ set, remix, mashup, or stem split.
Find BPM & key
Search by song name or Spotify link for a quick estimate. Switch to Upload audio to analyze your exact file.
What you get
BPM, key, and Camelot before you split stems.
Search released tracks to find the BPM of a song quickly, or upload your own file when accuracy matters. You'll get BPM, Camelot, and standard key before sending the track into stem separation.
BPM
124
DJ-ready tempo
Camelot
8A
harmonic mixing
Key
A minor
standard key
Other free tools
More tools for preparing tracks before a session.
Common questions
Before you split the track.
What does the tool detect?
It detects BPM, Camelot notation, and standard musical key, so DJs and producers can check tempo and harmonic fit before making edits, mashups, or stems.
Can I use it online?
Yes. The tool runs in your browser, so you can use it as a key and BPM finder online from search results, a Spotify link, or your own audio file.
Can I use a Spotify link?
Yes. Paste a Spotify track link into the search box, choose the result, and 44Stems will estimate BPM, song key, and Camelot notation.
Should I search a song or upload the audio file?
Search is fastest when you want a quick estimate for a released song. Upload is best when you need the exact BPM and key of your own file, remix, edit, acapella, or downloaded track.
Is this a Mixed In Key alternative?
It is useful for fast DJ prep. In a May 2026 internal benchmark against Mixed In Key labels, 44Stems returned a harmonically compatible Camelot key on 90.7% of 291 tracks.
Why check BPM and key together?
Tempo helps with beatmatching, while key helps with harmonic mixing. A combined BPM and key finder is more useful for remixing, edits, DJ prep, and deciding which track to split into stems.
What does Camelot mean?
Camelot notation turns the detected musical key into a DJ-friendly code, so you can quickly see which tracks are harmonically compatible.
Can I split the same track into stems?
Yes. After checking BPM and key, open 44Stems to separate vocals, drums, bass, and instruments.
Found the right key? Split the track into stems.Use the BPM and key finder to check the song, then continue in the 44Stems stem splitter to separate vocals, drums, bass, and instruments.