Chordify
7.3#4 in chord finder softwareFrom $2 a monthAndroidiOSWebAPI
VisitChordify suits beginners learning an instrument as well as working musicians who want chord guidance while playing. It supports guitar, ukulele, piano, and mandolin, with mandolin limited to the website and Android app.
Open—Shape suits guitar players who want to explore chord voicings, work in alternate tunings, or build progressions. The free plan covers built-in tunings and up to three saved progressions; Pro is for unlimited custom tunings and saves.