FastTune is a comprehensive online tuning tool that quickly and accurately detects the pitch and frequency of the strings you play. It supports a wide range of string instruments such as guitars, ukuleles, basses, and violins. The platform also provides an online metronome to help musicians keep their practice sessions on track with customizable beats per minute (BPM) and time signatures. It’s a perfect companion for both amateur and professional musicians looking to improve their tuning and timing.