Click the notes or type them in. The tool names the chord — including 7ths, sus, add, altered dominants, slash chords and inversions.
A chord is a set of notes. Naming it means finding which stack of thirds — plus any added or altered tones — those notes spell, and from which root. The same three notes can have more than one name depending on context: C–E♭–G♭ is a C diminished triad, but drop it under an A and it is an A♭7 without the root.
This tool takes the lowest note you enter as the bass. If that note is not the root, the chord is shown as a slash chord (C/E) and the inversion is named. Where the notes genuinely fit two chords equally well, both are listed.
To go the other way — pick a chord and see its notes, or build progressions — use the Scale & Chord Finder and the Chord Progression Generator. The Cloud Atelier guides cover chord construction from the ground up.
1. Click the notes on the keyboard, or type them into the box separated by spaces — for example C E G B♭ or Bb D F.
2. Put the bass note first: the lowest note (the first one you type) is treated as the bass.
3. Press Identify. The result shows the chord name, its quality, the inversion and any other names the same notes can take.
Type E G C. The notes form a C major triad, but E is in the bass, so the result is C/E — C major in first inversion. Type A C E G and you get Am7, with C6/A listed as an alternative, because the same four notes also spell a C6 chord over an A bass. Type Bb D F and the answer keeps your spelling: B♭ major.
How does the chord identifier work?
Click the notes on the keyboard or type them in. The tool compares the set of notes against
every common chord shape in all twelve keys and returns the best match, plus the inversion
if the lowest note is not the root. If the notes fit more than one name it lists the
alternatives.
Can it identify slash chords and inversions?
Yes. The lowest note you enter is treated as the bass. If it is not the root of the chord
the result is shown as a slash chord, for example C/E for a first-inversion C major.
What chord types does it know?
Major, minor, diminished, augmented, sus2, sus4, 6, m6, dominant 7, major 7, minor 7,
minor-major 7, half-diminished, diminished 7, 9, add9 and the common altered dominants (7b5,
7#5, 7b9, 7#9).
Is it free?
Yes, completely free, no account, no ads. It runs in your browser and works offline once
loaded.
Can I type flats and sharps?
Yes. Type b or # after the letter (Bb, F#) or use ♭ and ♯. The result keeps the spelling you
typed, so Bb D F is named B♭ major rather than A♯ major.
Why does one set of notes get two names?
Some chords are the same notes in a different order. A C E G is both Am7 and C6; which name
is right depends on the bass note and the key. The tool names the chord from your bass note
and lists the alternatives.
Does the octave of the upper notes matter?
No. Only the bass note changes the name. Above it, the order and octave of the notes do not
matter, so C E G and C G E are both C major.