Mark a chord on the guitar neck and get its name
Got a shape under your fingers and no idea what chord it is? Mark it on the fretboard and the chord namer tells you right away, with its notes and the other ways to read the same chord.
It recognizes 24 chord types, from power chords and triads to ninths and altered sevenths, also in inversion or over another bass note (C/E). It works with 7 tunings and a capo, and everything runs in your browser.
The tool opens right here in your browser when the page finishes loading.
How to name the chord you are playing
Click each fret you press and each open string that rings; every note sounds as you mark it. As soon as there are enough notes, the “Detected chord” panel shows the chord name, its notes and other possible readings. The same four notes can be C6 or Am7 over C, and the page shows you both.
“Strum chord” plays the shape as a strum and “Arpeggiate” plays it note by note, from low to high. “Clear” wipes the neck and “Share” copies a link with the shape and the tuning so you can send it to someone.
Every note uses a piano sound, even on the guitar neck: what matters here is the notes, not the tone of the instrument.
The 24 chord types it recognizes
- Power chord: root and fifth, no third (C5).
- Triads: major, minor, diminished, augmented, sus2 and sus4.
- Seventh chords: 7, maj7, m7, minor-major seventh (m(maj7)), diminished seventh (dim7) and half-diminished (m7♭5).
- Sixths and ninths: 6, m6, 9, maj9, m9, add9 and m(add9).
- Altered sevenths: 7♯9, 7♭9, 7♯5 and 7♭5.
Tunings, capo, scales and other views
- 7 tunings: in “Tuning”: standard, Drop D, half step down, whole step down, Open D, Open G and DADGAD. The chord name is worked out in the tuning you choose.
- Capo: “Capo” puts a capo on frets 1 to 7, and chord detection takes it into account.
- Left-handed: “Left-handed” moves the nut to the right, and “Flip strings” puts the 1st string at the top or at the bottom.
- What the neck shows: “Marked notes”, “All notes”, “Intervals”, “Scale notes” or “Note colors”, across 12 frets plus the open strings.
- Scales: “Show the scale” lays one of 8 scales over the neck from any root: major, natural minor, major and minor pentatonic, blues, Dorian, Mixolydian and harmonic minor.
- Example chords: “Quick chords” loads 12 shapes in standard tuning, open and barre.
- Piano and keyboard: “Piano” swaps the neck for a 3-octave keyboard that also names the chord. You can play it from your computer keyboard in QWERTY, QWERTZ, AZERTY or ЙЦУКЕН.
- 3D view: the “3D” tab shows the same neck in 3D so you can rotate it and zoom in; it is still in beta.
Frequently asked questions
What chord am I playing on guitar?
Mark each fret you press and each open string that rings. The “Detected chord” panel gives you the chord name and the other possible readings of the same notes.
Does it work with a capo or in other tunings?
Yes. Choose the tuning (standard, Drop D, half step down, whole step down, Open D, Open G or DADGAD) and set the capo anywhere from fret 1 to 7: the chord name is worked out with that tuning and that capo.
Does it name inversions and slash chords?
Yes. If the lowest note is not the root, it writes the chord with a slash (C/E) and tells you which inversion it is.
Why does it sound like a piano and not a guitar?
The fretboard uses piano samples for every note. It is there to let you hear which notes make up the chord, not to imitate a guitar.
How many frets does the neck have?
12 plus the open strings: a full octave on every string, in the 2D view and in the 3D view.
Can I use it to learn the notes on the fretboard?
You can see every note with “All notes”, but if you want to memorize them, practice with Fretboard Notes on Full Partituras, which is built for that.
What if I want the chords of a recorded song?
That is what Chord AI does: upload the audio and it finds the chords, the key and the tempo of the song.