Chord Finder
Tap the notes you're playing on a guitar neck, a bass, a ukulele or a piano keyboard, and ScaleSpace names the chord. It takes the lowest note into account, gives the reason each name fits, plays the chord back, and lists the scales that contain it. Free, no sign-up, no ads.
How it names a chord
Every chord type is tried on every root. A name fits when every note you played belongs to the chord, every note the chord needs is there, and its root is one of your notes. A 5th may be left out, as players do all the time. The names are ranked by the bass note, then by how complete the match is, then by how common the chord is.
The bass note is where most chord identifiers go wrong. C, E and G with E lowest is C/E, C major in first inversion. Several identifiers call it E minor flat 6, a name nobody would write on a chart.
Two notes
Two notes are an interval before they are a chord. The finder names the interval, then the chord those two notes most likely belong to, then the chords one more note would make.
After the name
Each answer shows the same chord on the other instruments: a guitar shape, the piano keys and the bass note. It links to the chord drawn across the whole neck, and to every scale that contains its notes. The address bar keeps your notes, so a link to a result opens it again, on any instrument.
Questions
How do I find out what chord I'm playing?
Tap every note you're holding on the fretboard or keyboard, the lowest one included. The chord finder names the chord, says which note is in the bass, and gives the reason the name fits. Other names for the same notes are listed under it, each with its own reason.
What chord is C E G B?
C, E, G and B, with C lowest, make Cmaj7 (C major seventh). C, E, G and B are the root, 3rd, 5th and 7th of Cmaj7.
What chord is A C E G?
A, C, E and G, with A lowest, make Am7 (A minor seventh). A, C, E and G are the root, flat 3rd, 5th and flat 7th of Am7. The same notes with C in the bass would be C6.
What chord is E C G?
E, C and G, with E lowest, make C/E (C major over E). E is the 3rd of C, so this is C major in first inversion.
What is a slash chord?
A slash chord names a chord and the note in its bass: C/E is C major with E as the lowest note. When the bass is another note of the chord it is an inversion. E under C major is the first inversion, G under it is the second.
Can two notes be a chord?
Two notes are an interval first. C and G are a perfect fifth, which guitarists play as the C5 power chord. The finder names the interval, then lists the chords one more note would make: E for C major, E flat for C minor, F for Csus4.
Is the chord finder free?
Yes. It runs in the browser with no sign-up and no ads, on guitar, bass, ukulele and piano, in any tuning and with a capo.