PitchPerfect – Professional and free instrument tuning software for musicians

PitchPerfect (full name: PitchPerfect Musical Instrument Tuner, PitchPerfect Guitar Tuner) is a free but highly accurate and professional instrument tuning software for Windows and Mac platforms, developed by NCH Software from Australia. It is specially designed for guitar players and other musicians, can help users quickly and effectively tune their instruments, so as to greatly improve the sound quality of instruments.