Virtual Marimba Online — 49 Keys, 4 Octaves, Free
Our Virtual Marimba Online is the most realistic free marimba simulator on the web. With 49 rosewood-modeled bars spanning C3 to C7 and physically accurate soft-mallet sound synthesis, it captures the warm, resonant tone that makes the marimba one of the most expressive percussion instruments in the world. No downloads, no plugins — play instantly in any browser.
Real Marimba Sound — Physical Modeling Synthesis
Real marimba sound comes from two things: the wooden bar and the resonator tube below it. Our audio engine models both precisely. The bar produces a warm fundamental tone with a characteristic inharmonic second partial at approximately 3.87× the fundamental (not 4×, as in a true harmonic series — this slight inharmonicity is exactly what gives marimba its distinctive warmth). The resonator tube amplifies and sustains the fundamental. The result is the soft, woody, singing tone that distinguishes marimba from the sharper xylophone.
Velocity-Sensitive Mallet Modes
Soft mallet gives you gentle, introspective tones ideal for melodic passages. Medium mallet is the default — balanced and versatile for all playing styles. Hard mallet produces a louder, more defined attack for rhythmic passages. Auto (Dynamic) randomizes velocity naturally, just like a real performer who varies touch. On desktop, you can also control velocity by where you click on each bar — top for loud, bottom for soft.
6 Built-in Scale & Melody Patterns
C Major Scale — the fundamental western scale, ascending and descending. Pentatonic Scale — the universal 5-note scale found in music from Japan to West Africa to India. Ode to Joy — Beethoven's iconic melody from Symphony No. 9, a classic marimba recital piece. Blues Scale — soulful and expressive, great for improvisation. Twinkle Twinkle Little Star — perfect for beginners learning to follow along. Chromatic Scale — all 12 semitones ascending and descending, essential for technique practice.
How to Play
On desktop, use keyboard shortcuts: Z X C V B N M for Octave 3 (low), Q W E R T Y U for Octave 4 (middle, most commonly used), I O P A [ for Octave 5 (high). Sharp keys use the row above natural keys. Click the bars directly on any device — tap on mobile and tablet. Use the octave navigation buttons (◀ ▶) to shift the visible range. Press Space to stop any playing pattern.
Also See: Other Virtual Instruments
Explore our full collection of free virtual musical instruments including Pro Virtual Santoor (93 strings, 3 octaves), Ultimate Virtual Piano (85 real piano samples), Tabla Simulator, and Virtual Bansuri.
Frequently Asked Questions
What is a marimba?
A marimba is a large percussion instrument with wooden bars arranged like a piano keyboard, each with a resonator tube beneath. It is struck with soft mallets to produce a warm, melodic, sustained tone. Marimbas are used in classical orchestras, solo recitals, jazz ensembles, and world music. The standard concert marimba spans 4 to 5 octaves.
Marimba vs Xylophone — what's the difference?
The marimba uses softer rubber or yarn mallets and has longer resonator tubes, producing a warmer, deeper, more sustained sound. The xylophone uses harder mallets and produces a brighter, shorter, more percussive tone. Marimbas are typically larger and have a lower range. If you love warm, singing tones, the marimba is your instrument.
Is this marimba free?
100% free, forever. No signup, no download, no ads interrupting play. Works on all modern browsers on desktop, tablet, and mobile.