Piano Chord Finder
Press the keys you're playing and see what the chord is called — including inversions and slash chords. Press a key again to remove it.
Try:
The lowest key you press is the bass note — it decides inversions like C/E.
Press two or more keys to name the chord.
How the chord finder works
It tries every note you pressed as the possible root and compares the distances between the notes with more than 25 chord types — from major and minor triads to 7th, 9th, 11th, 13th, sus and altered chords. When several names fit, the one built on your lowest key is shown first, and the others are listed as alternatives.
Inversions and slash chords
A chord is in root position when its root is the lowest note. If the 3rd is lowest it's a 1st inversion, the 5th makes a 2nd inversion, and the 7th a 3rd inversion. Chord charts write these as slash chords: C/E means a C major chord with E in the bass.