Fourths Hub

Free tools for guitarists exploring fourths tuning. Visualize scales, build chord voicings, and unlock new creative possibilities.

Why Fourths Hub?

Built by guitarists, for guitarists. Everything you need to master fourths tuning.

No ads, no paywalls. All tools are completely free and always will be.

Powerful visualizers for scales, arpeggios, chord voicings, and more.

Built specifically for P4 tuning, with support for other tunings too.

Join our Discord to suggest features, report bugs, or just chat about guitar.

Jump right in with our most-used features.

Connect with other guitarists, get help, suggest features, or just hang out.