ADSR Envelope Designer
Design ADSR (Attack, Decay, Sustain, Release) envelopes with interactive sliders and real-time SVG visualization. Preview the envelope shape with an oscillator sound.
How to use
Adjust the ADSR sliders
Set the Attack, Decay, Sustain, and Release values using the interactive sliders.
See the envelope shape
Watch the envelope shape update in real-time on the SVG canvas as you adjust.
Press Play to preview
Click Play Preview to hear an oscillator with the ADSR envelope applied.
Use cases
Synthesizer design
"Shape the envelope for pads, leads, or plucks in your synth patches."
Sound learning
"Understand how ADSR parameters affect timbre and dynamics of a sound."
Music production
"Prototype envelope settings before applying them in your DAW."
Frequently Asked Questions
?What does ADSR stand for?
Attack (time to reach peak), Decay (time to drop to sustain level), Sustain (held level while key is pressed), Release (time to silence after key release).
?Can I export the envelope?
The tool shows real-time values you can copy to your synth or DAW manually.
?Is my data private?
Yes. Everything runs locally in your browser. No data is sent to any server.
?What ranges can I set?
Attack 0-2s, Decay 0-2s, Sustain 0-100%, Release 0-3s.
?Is this tool free?
Yes. Completely free with no limits, no sign-up required.
?Can I use this with my DAW?
The tool helps you prototype envelopes visually. Copy the values to apply them in your DAW.