Free Online Virtual Guitar
Interactive 6-string guitar fretboard with real physical modeling synthesis. Pluck strings, test chord voicings, and explore alternate tunings online.
String Physics & Plucked Acoustics
Guitar strings produce sound when plucked, creating standing waves along their length. The fundamental frequency is determined by string length, tension, and mass density. Pressing a fret shortens the vibrating string segment, raising the pitch logarithmically in semitones (12 frets per octave).
Fretboard Geometry & Interval Patterns
Standard guitar tuning is tuned in fourths (E-A-D-G) except between the 3rd (G) and 2nd (B) strings, which is a major third. Understanding this shift allows you to move scale patterns and barre chord shapes anywhere up the neck.
5 Essential Open Guitar Chords (CAGED System)
Folk & pop staple chord.
Three fingers on fret 2.
Resonant 6-string voicing.
Easiest 2-finger chord.
Triangle shape on top strings.
Explore Related Guitar Guides & Instruments
Acoustic Fretboard Engine & Features
Karplus-Strong physical modeling synthesis providing authentic pluck attack, string resonance, and dynamic tuning options.
Karplus-Strong Pluck Engine
Synthesizes realistic nylon and steel guitar string vibrations using filtered delay line feedback loops for authentic string decay.
- ✓Natural pluck transient attack
- ✓Authentic acoustic body resonance
- ✓Sub-millisecond Web Audio clock
Multi-Tuning & Fretboard
Switch instantly between Standard (EADGBE), Drop D, Open G, and DADGAD tunings with live visual octave and scale note highlights.
- ✓One-tap tuning switcher
- ✓Horizontal touch scroll neck
- ✓Interactive chord voicing display
Performance & Tab Integration
Practice strumming patterns, open chord shapes, tab reading, and record performance audio directly to 16-bit WAV files.
- ✓Export studio-ready WAV audio
- ✓Beginner tab tutorial integration
- ✓Zero account registration required
Virtual Guitar — Frequently Asked Questions
Find answers to common questions about our virtual instruments, practice tools, and music theory workspace.
Can I play guitar online without any downloads?
Yes.
Our virtual guitar runs 100% free directly in your web browser using high-performance Web Audio API synthesis. No downloads, plugins, or sign-ups are required.
What tunings are supported on the virtual guitar?
We support Standard (E A D G B E), Drop D (D A D G B E), Open G (D G D G B D), and DADGAD tuning.
How do I play notes and pluck strings on the virtual guitar?
Click or tap any fret position on the interactive fretboard to hear that specific pitch ring.
You can also pluck open strings using computer number keys 1 through 6.
Can I play guitar chords on mobile phones and tablets?
Yes! The fretboard is fully touch-optimized for smartphones and tablets.
Tap any fret position or open string to trigger multi-touch chords.
How are the guitar frequencies synthesized?
Our virtual guitar uses a Web Audio API Karplus-Strong plucked-string physical modeling algorithm, creating authentic string decay and harmonic resonance.
What are open guitar chords?
Open chords are chord voicings played in the first 3 frets of the fretboard that incorporate un-fretted open strings (e.
g., Open E Minor, C Major, G Major).
How do I read guitar tablature (tabs)?
Guitar tabs represent the 6 strings visually, with the high E string at the top and low E string at the bottom.
Numbers placed on the string lines indicate which fret number to press.
What is Drop D tuning and why is it used?
Drop D lowers the 6th string from E2 down one whole step to D2.
This enables one-finger power chords across the lowest three strings, widely used in rock and metal.
How does a guitar capo work?
A capo clamps across a fret position, effectively shortening the string length and raising the pitch of all open strings without altering your finger shape chord muscle memory.
Is this online guitar free for music students and teachers?
100% free with unlimited access for music lessons, chord reference, songwriting, and ear training.