Chord Finder
Name the chord from its notes, including inversions.
About this tool
Click keys on the two-octave keyboard (the lowest is the bass) or type note names, and the chord finder lists every chord name that fits, best first, with intervals and a play button.
How chords are named
A chord is named from its root and the intervals above it: a major third and perfect fifth make a major chord (C E G), a minor third and fifth make a minor chord (A C E), and adding a minor seventh gives a dominant 7th (G B D F). When the lowest note isn't the root the chord is an inversion, written as a slash chord: E G C is C major with E in the bass, C/E. The same notes can often be read more than one way: A C E G is A minor 7th, but with C in the bass it's usually called C6. The finder tries every note as a possible root, matches the intervals against 33 chord types (triads, suspended and power chords, sixths, sevenths, half-diminished, ninths, elevenths and thirteenths, added notes and altered dominants), recognises 7th and extended chords played without the fifth, and ranks names with the root in the bass first. Note names you type keep your spelling, so C♯ E♯ G♯ stays C♯ rather than D♭. Honest limits: the best name depends on the music around it, and clusters or scale fragments may have no standard name. The piano chord chart and the guitar chord chart work the other way, from name to notes.
Frequently asked questions
What chord is C E G?
C major. In other orders it is still C major: E G C is C/E and G C E is C/G.
Why does it show more than one name?
The same notes can be named different ways, such as Am7 and C6/A. The most common reading is listed first.
Can I type the notes instead of clicking?
Yes. Type names like E G C or C Eb G Bb, with the bass note first.
What does (no5) mean?
The chord is recognised with its fifth left out, which is common in guitar and jazz voicings.
Is anything stored or sent?
No. It all runs in your browser, and nothing you do is stored or sent anywhere.