Key Finder — Detect the Musical Key of Any Song

Upload a song and instantly find its musical key and scale. Free, private, and processed entirely in your browser.

Related free tools

• Chord Finder — Find the chords of any song, synced to the music as it plays. Free chord detection, right in your browser.
• BPM Finder — Find the exact BPM of any song in seconds. Drop a file in your browser — nothing is uploaded, no account needed, completely free.
• Song Analyzer — Get a full breakdown of any song's tempo, key, loudness and energy from one free tool. No account, no upload.

More tools