What is Synth Pad?

A free synthesizer pad you can play right away. Tap or drag on the XY pad to play notes — the horizontal axis controls pitch and the vertical axis controls filter cutoff. Pick from classic waveforms, adjust the ADSR envelope, and add reverb or delay.

Pick a waveform, shape the ADSR envelope, and route it through a resonant filter, distortion drive, reverb and delay. An LFO can modulate the pitch for vibrato or the filter cutoff for tremolo-style sweeps. Switch between Mono with portamento glide or Poly for chords up to four voices. Five built-in presets (Pad, Bass, Lead, Pluck, Bell) get you started; the record button captures a WAV you can download.

How to use

1. Select a waveform (sine, square, sawtooth, triangle) and set the octave range.
2. Tap or drag on the XY pad to play — left/right changes pitch, up/down changes tone.
3. Adjust attack, decay, sustain, and release knobs to shape the sound, then record and download.

When to use

• Sketching a melodic idea when your hardware synth isn't set up.
• Recording short pad textures or stings to layer under a video edit.
• Teaching ADSR envelopes or filter cutoff without a physical instrument.

Result

You want ambient background sounds for a video. Select a sine wave, set a long attack and release, enable reverb, then slowly drag across the pad to create evolving pad textures. Record 30 seconds and download as WAV.

FAQ

Why does the first note take a moment to start playing?

Browsers require a user gesture before audio can start. The first tap initializes the Web Audio context and loads the reverb impulse response. After that, every note plays immediately.

What's the difference between the four waveforms?

Sine is pure and hollow, good for sub-bass and bells. Triangle is sine with a touch of edge. Square gives that hollow video-game tone. Sawtooth is bright and rich in harmonics, the classic synth-lead sound.

How does the XY pad map to sound?

The horizontal axis sets the pitch across roughly an octave. The vertical axis sweeps the low-pass filter cutoff — drag up for a bright, open tone and down for a muffled, closed one. Velocity follows pressure on touch devices.

Can I save my recordings?

Yes. Hit record before playing, then stop when you're done. You get an inline player to audition the take first, then a Download button saves it as a full-quality WAV (16-bit / 44.1 kHz) that opens in any DAW or media player.

Does this work on phones and tablets?

Yes. The XY pad is touch-friendly and multi-touch capable, so you can hold one note while sweeping the filter with a second finger. Performance depends on the device — older phones may glitch with reverb at long release times.

Related Tools