Microphone tuner and tuning library
Free Online Guitar Tuner
Tune guitar, bass, banjo, mandolin or ukulele with a precise cents meter, chromatic listening and a comprehensive alternate-tuning library.
Open the Guitar Tuner →
Learn by exploring
Free guitar tools for
seeing how music works.
Interactive resources that turn guitar theory into something you can see, hear and use immediately.
Available now
Explore the tools
Explore the fretboard, modal patterns and the harmonic relationships that connect keys and chords.
Beginner rhythm and strumming
Rhythm Trainer
Learn to feel the beat, keep your strumming arm moving, master six essential song patterns and receive live timing feedback.
Open the Rhythm Trainer →
Notes, octaves and intervals
Fretboard Explorer
Learn every note across 24 frets, isolate any strings and reveal the repeating visual shapes made by octaves and intervals.
Open the Fretboard Explorer →
Fretboard Freedom
CAGED Explorer
See how major chords, arpeggios, scales, pentatonics and triads connect through all five CAGED families.
Open the CAGED Explorer →
Chord construction
Chord Explorer
Build common chords from their notes and intervals, compare practical guitar voicings and hear how each chord colour changes.
Open the Chord Explorer →
Harmony and key signatures
Circle of Fifths Explorer
See how major keys, relative minors, key signatures, diatonic chords and primary relationships connect.
Open the Circle Explorer →
Modal fretboard
3NPS Modes Trainer
Explore connected three-notes-per-string positions for the modes of the major, melodic minor and harmonic minor scale families.
Open the 3NPS Modes Trainer →
Scale construction and ear training
Scale Visualiser
See and hear the step pattern inside every scale on one string—whole steps, half steps and pentatonic minor-third gaps without a multi-string shape hiding the sequence.
Open the Scale Visualiser →
Natural and artificial harmonics
Harmonics Explorer
Find the sounding notes produced by natural harmonics, then move artificial harmonics over open chords or your own fretted shape.
Open the Harmonics Explorer →