StrumForge is a guitar practice app, chord progression generator, scale trainer, and interactive triad trainer designed to help you improve rhythm, fretboard knowledge, improvisation, and songwriting.

Generate theory-based chord progressions in seconds, play along with interactive chord diagrams, explore matching scales, and practice triad inversions across the fretboard.

Choose a key, mode, chord style, groove, tempo, guitar tone, or musical style. StrumForge combines chords, scales, triads, rhythm tools, and playback controls in one focused guitar practice workspace.

Designed for beginners learning guitar fundamentals and experienced players exploring new voicings, modes, inversions, and songwriting ideas.

No ads. No account required.

Perfect for:
• Daily guitar practice
• Learning chord shapes and voicings
• Improving rhythm and timing
• Improvisation and soloing practice
• Understanding triads and arpeggios
• Discovering new songwriting ideas
• Scale and fretboard training
• Practicing guitar theory
• Exploring modes and learning full and pentatonic guitar scales

Chord Progressions
• Generate over 1 million unique theory-based chord progressions instantly
• Create 4, 8, or 12-chord progressions based on musical style or mood
• Choose a key, mode, chord type, groove, tempo, and guitar sound
• Lock or manually override individual chords in the progression
• Choose from open chords, barre chords, triads, or power chords
• Add sevenths, suspended, and add9 chords for more flavor
• Explore new voicings and chord combinations

Triad Trainer
• Explore triads in every key across the fretboard
• Practice root-position triads and inversions
• Switch between different string sets
• See how triad shapes connect across the neck
• Play triads as strums or arpeggios
• Practice each shape with adjustable tempo and interactive playback
• View triad notes and intervals on chord diagrams and the full fretboard

Scales & Fretboard
• Explore matching mode and pentatonic scale diagrams
• Learn full scales and individual scale shapes
• View intervals, notes, and finger-position labels
• Interval and modal flavor note color options to visualize and emphasize chord tones
• See scales across the full fretboard
• Move diagrams to your preferred fretboard position
• Cycle through different chord shapes and fingerings
• See chord interval and shape labels
• Practice improvisation over generated progressions

Rhythm & Practice Tools
• Play along with chord diagrams in real time
• Learn moveable arpeggios across the fretboard with built in playback and tempo controls
• Adjust groove, tempo, strumming pattern, and guitar tone
• Use built-in metronome tools for timing practice
• Practice chord changes, rhythm, improvisation, and timing
• Choose from multiple guitar sounds for playback
• Use portrait or landscape orientation
• Enable left-handed mode

Perfect for:
• Daily guitar practice
• Learning chord shapes and voicings
• Mastering triads and inversions
• Improving rhythm and timing
• Scale and fretboard training
• Improvisation and soloing practice
• Practicing guitar theory
• Exploring modes and pentatonic scales
• Discovering chord progressions and songwriting ideas

Free users can generate up to five chord progressions per day.

Unlock Pro
• Unlimited chord progression generation
• Full Triad Trainer access
• Save, organize, revisit, and share favorite progressions
• Sync favorites and preferences across devices
• Generate progressions based on musical style or mood
• Track practice sessions with heatmaps, statistics, and streaks
• Built-in guitar tuner, includes popular alternate tunings
• Full-featured metronome with tap tempo, subdivisions, and additional customizations
• Enable dark mode
• Access advanced scale tools and individual scale shapes
• Unlock additional grooves and rhythm options
• Unlock 12-string and overdrive guitar sounds
• Use arpeggiated guitar playback
• Save default app preferences