About

Free browser oscilloscope that plots audio files, microphone input or generated signals in XY mode.

XXY Oscilloscope is a web page that emulates an XY oscilloscope. It can play an audio file, listen to the microphone, or generate signals from JavaScript expressions you type in, then draws the result with an authentic phosphor-style glow.

Controls cover gain, intensity, persistence, hue, sweep and axis swapping or inversion. It is a quick way to see oscilloscope music without installing anything. Its line drawing is adapted from the woscope project.

Features & Use Cases

XY and sweep modes
Audio file and microphone input
Signal generator using JavaScript expressions
Persistence, hue and intensity controls

Pricing

Free to use.

View current pricing

Sources

dood.al

Pricing checked 3 October 2026.