Browser Analog Synthesizer

Free Online Synthesizer

Shape live sound waves using Web Audio API synthesis. Tweak filters, resonance, and octave transpositions directly in your browser.

C4
Sound Engine

Percussive Synthesis Engine

Utilizes high-frequency noise bursts, FM modulation, and rapid exponential decay envelopes to create punchy, transient-rich percussive hits.

  • ✓ Crisp transient attacks
  • ✓ Zero-latency scheduling
  • ✓ Dynamic velocity curves
Synthesis
FM & Additive
Latency
< 10ms
Polyphony
64 Voices
Timing

Hardware Clock Precision

Schedules beats directly to your device's audio hardware clock, guaranteeing 0.00% jitter and perfect metronomic stability.

  • ✓ Professional tempo lock
  • ✓ Bypasses JavaScript lag
  • ✓ Flawless rhythm tracking
Clock
AudioContext
Jitter
0.00%
Accuracy
Sub-millisecond
Playability

Multi-Touch Pad Grid

Designed for rapid finger-drumming and rhythm sequencing, supporting simultaneous multi-key presses across desktop and mobile.

  • ✓ Play multiple pads instantly
  • ✓ No browser shortcuts conflict
  • ✓ Responsive hitboxes
Control
Touch & QWERTY
Feedback
Visual Glow
Rollover
N-Key Support

Browser Synthesizer & Sound Design Tool

Our browser synthesizer provides electronic musicians, beatmakers, and sound designers with an instant playground for subtractive synthesis. Control oscillator waveforms (Sawtooth, Square, Sine, Triangle) and adjust the resonant lowpass filter cutoff frequency.

Tableau de Bord de Pratique & Utilitaires

Analog Synthesizer Centre de Pratique & Contrôle

Raccourcis complets, doigtés, techniques et commandes tactiles pour une jouabilité optimale.

Raccourcis Clavier

Disposition des Touches QWERTY

  • A - K Keyboard notes (C3 to C4)
  • W, E, T, Y, U Black keys
  • Space Filter LFO / Pitch Bend

Synth Voicings & Arps

scales & Techniques

  • Synth Lead Stack
    C - G - C octave
  • Filter Sweep Pad
    Cmaj9 (C-E-G-B-D)
  • Bass Octave
    C1 - C2 Sawtooth
  • Arp Pattern
    C - E - G - B up/down

Guide Étape par Étape

Comment Pratiquer Efficacement

  1. 1 Select oscillator waveform (Saw, Square, Triangle).
  2. 2 Adjust Cutoff Frequency & Resonance knobs in realtime.
  3. 3 Shape Amp & Filter ADSR envelopes for punchy or atmospheric sounds.

Conseils Pro

Technique & Ergonomie

  • ✓ Lower filter cutoff while increasing resonance for classic analog squelch.
  • ✓ Use LFO pitch modulation for subtle vintage drift.
  • ✓ Long attack & release settings create cinematic pads.

Erreurs Courantes

Pièges à Éviter pour Débutants

  • ✕ Setting resonance too high causing harsh self-oscillation clipping.
  • ✕ Overlapping long release envelopes resulting in muddy chords.
  • ✕ Detuning oscillators excessively causing out-of-tune chorus.

Mobile & Tactile

Commandes Tablette & Smartphone

  • • Multi-touch keyboard with realtime XY pad filter parameter control.
  • • Touch-drag sliders for smooth cutoff sweeps.
  • • Low latency Web Audio synthesis.

Knowledge Base & FAQs

Online Synthesizer — Frequently Asked Questions

Everything you need to know about our browser-based Web Audio engine, instruments, and music theory workspace.

How does the virtual synthesizer work?

Our virtual synth features selectable wave shapes (saw, square, sine), resonant filter cutoff controls, and octave shifts powered by Web Audio.

Click keys to play.

What is the difference between saw, square, and sine waveforms?

Sine waves produce pure smooth tones, square waves produce hollow reed-like timbres, and saw waves create bright leads rich in all harmonics.

How does filter cutoff and resonance (Q) shape synth leads?

Cutoff removes frequencies above a threshold, while resonance boosts frequencies at the cutoff point for squelchy synth sweeps.

What is an ADSR envelope in synthesis?

ADSR stands for Attack, Decay, Sustain, and Release — shaping how volume and filter brightness evolve over time.

What keyboard keys play synth notes?

Keys A-S-D-F-G-H-J-K-L-; map to white keys, W-E-T-Y-U to black keys, and on-screen octaves shift pitch.

Does the virtual synthesizer support WebMIDI keyboard controllers?

Yes, connect any USB or Bluetooth MIDI keyboard in supported browsers for velocity-sensitive synth performance.

What is an LFO (Low-Frequency Oscillator) used for?

An LFO modulates parameters like pitch (vibrato), filter (tremolo/wah), or volume at slow speeds below 20 Hz.

Can I record synth leads online?

Yes, use our transport bar to record audio live and download a high-quality .

webm file.

Is this virtual synth free for music production?

100% free with zero paywalls for producers, synth enthusiasts, and electronic music students.

How does Web Audio synthesize analog synth warmth?

Our engine uses biquad filter nodes and soft clipping saturation to emulate classic analog voltage-controlled filters.