DROP A SONG · HEAR THE CHORDS · PLAY ALONG
Drag in an audio file or a MIDI file (a Suno export, a stem, anything) and Chord Catcher works out the harmony right here in your browser — nothing is uploaded. It lays the chord changes on a timeline and lights each one up on the guitar. MIDI reads the exact notes — use a full or multi-part MIDI for the best chords; audio works best on clear recordings.
Drop an audio file or MIDI here
or click to choose · audio (mp3, wav, m4a, ogg) or MIDI (.mid) · stays on your device
How good is this? Chord Catcher runs a chromagram + chord-template detector entirely in your browser — no
server, no upload, no cost. That's excellent on clear material (solo guitar/piano, simple pop) and rougher on dense,
AI-generated full mixes where vocals and drums crowd the harmony. It's a strong free starting point; a future tier can
swap in a small machine-learning model for Chordify-grade accuracy without ever leaving the browser.