Ruggi.SiteGuitar & piano chord finder
Pick a root and chord type to see its notes, computed guitar, ukulele and bass voicings with finger numbers in several tunings, piano inversions, and a reverse mode that names a chord from the frets or keys you choose.
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Guitar / ukulele / bass voicings
The page searches every fingering with frets 0-15 inside a 4-fret window, keeps only those that contain every needed chord tone (the fifth may be left out in bigger chords), put the chosen bass note lowest, and use at most four fingers (a barre counts as one). Strings you do not play must be at the outside edges. They are ranked: fewer muted strings, lower position, open strings, small stretch, no barre. Finger numbers are a typical suggestion (1 = index ... 4 = little finger); you may find a different fingering more comfortable.
All voicings as fret numbers (x = muted)
Piano
Reverse mode: what chord is this?
Fretboard
Choose the fret for each string (x = not played) in the tuning selected above. Lowest string first.
Piano keys
Click (or press Enter on) keys to toggle them. The lowest key is treated as the bass.
How it works and what it assumes
- Notes are spelled from the root with correct letter names (for example C7 is C E G B♭, not A♯). Extended chords are shown with the usual formulas: 9 = 1 3 5 ♭7 9, 11 = 1 3 5 ♭7 9 11, 13 = 1 3 5 ♭7 9 13 (the 11th is normally left out of a 13th chord). Fifths, and in 11th and 13th chords also the 9th, may be omitted from a voicing, as players usually do.
- Ukulele: the re-entrant G string means the lowest-sounding string is not always the lowest pitch, so the "bass note" rule is relaxed there.
- The piano fingering shown is a typical right-hand suggestion only (1 = thumb ... 5 = little finger); chords with more than five notes are split between the hands.
- Sound: a plain synthesised pluck or piano-like tone made in your browser, started only when you press Play. No files are loaded.