Jeff’s Guitar Tools

Jeff's Guitar Tools is a free interactive web app for guitarists who want to explore chords, scales, and progressions across the fretboard. It offers a CAGED practice tool, a chord finder and reverse chord finder, and genre-based examples spanning rock, blues, jazz, pop, and funk styles. Users can experiment with roots, triads, pentatonic scales, and voice leading, customize tempo and playback style, and visualize shapes, intervals, and scale degrees directly on the neck. The site also allows sharing progressions via a simple link. It's designed as a hands-on practice and experimentation resource for guitar players of various levels.