Absolutely! Roadie is compatible with ukuleles, banjos, mandolins and any instrument with guitar machine heads fitted with strings of gauge up to 75. Other instruments that can be tuned with Roadie 3 include lap steel guitars, pedal steel guitars, dobro square neck, and dobro round neck. However, please note that Roadie 3 does not work on Bass Guitars or instruments with a string gauge above 75 as it requires more torque (bigger motor) to rotate their machine heads. Check Roadie Bass for tuning bass guitars or other instruments with a string gauge up to 140. In addition, Roadie 3 is unable to tune any instruments equipped with wooden friction pegs (such as the violin and viola). If you install planetary pegs on those instruments, Roadie will work normally.