Oscilloscope music fans
Play the tracks you own in XY mode with the glow on, fullscreen in a dark room. This oscilloscope music visualizer online needs no hardware scope.
Free Oscilloscope Online for Audio and Oscilloscope Music
EzVisualizer is a free oscilloscope online for sound. Open an audio file or your microphone and watch the waveform as a steady trace, with trigger, timebase and gain. Switch to XY mode, left channel against right, and oscilloscope music draws its pictures in glowing lines. Fullscreen and PNG export included, and nothing is uploaded.
- Free, no sign-up
- XY mode with phosphor glow
- File or live microphone
- Nothing uploaded
What an Online Oscilloscope Shows
An oscilloscope draws a signal as it moves: time across, amplitude up and down. A waveform overview shows a whole song; an audio oscilloscope zooms to a few milliseconds and redraws them many times a second, so you see the shape of the sound itself. A sine wave is a smooth curve, a square wave has flat tops, a voice is a busy, repeating pattern. The trigger starts each sweep at the same point of the wave, so a steady note stands still instead of sliding across the screen.
Open the OscilloscopeWhat Is Oscilloscope Music?
Oscilloscope music is stereo audio written to be watched on a scope in XY mode. The left channel moves a dot left and right, the right channel moves it up and down, and the sound is shaped so the dot draws pictures: shapes, words, spinning 3D objects. What you hear is what you see. Artists such as Jerobeam Fenderson, working with Hansi Raber (Hansi3D), pioneered the form and publish their work at oscilloscopemusic.com. How it works:
- Two sine waves at the same pitch draw a line, an ellipse or a circle, depending on their phase.
- Simple ratios between the two pitches, such as 2:3, draw the looping shapes called Lissajous figures.
- The dot moves fast, and phosphor persistence on the screen turns its path into solid, glowing lines.
- MP3 encoding, EQ and stereo effects bend the picture, so these tracks are best played as WAV or FLAC.
- Ordinary music is not written for XY mode, so it draws a moving scribble rather than a picture.
Why Use This Audio Oscilloscope
A scope for sound that opens in a browser tab: no hardware, no cables, no install.
XY mode with a phosphor glow
Left against right, with the slow fade of an analog screen, so XY drawings look the way their makers intended.
A steady trace
Trigger, timebase and gain controls hold a repeating wave still and size it to fit the screen.
File or live microphone
Play a track you own, or point a mic at a synth, a guitar or your voice and watch it live.
Fullscreen
Fill the screen with the trace for a projector, a second monitor or a dark room.
Four views of one sound
The same audio opens as a waveform, a spectrum or a spectrogram in one click.
Free and private
A free oscilloscope with no account. Audio stays on your device, and a PNG of the screen is one click away.
How to View Audio on an Oscilloscope Online
Three steps with the scope above, on a computer, tablet or phone.
Drop a WAV, FLAC, MP3, M4A or OGG file, press the microphone button, or load the XY demo: a circle, a Lissajous figure, a rose, a square and a star.
Time mode draws the waveform with trigger, timebase and gain. XY mode draws left against right for oscilloscope music and stereo checks.
Expand the scope to fill the screen, or save the current picture as a PNG.
Step 1 · Open audio or your mic
Online Oscilloscope Features
Two classic scope modes, the controls that make them readable, and a glow worth watching.
XY mode, made for oscilloscope music
In XY mode the left channel drives the horizontal axis and the right drives the vertical. Phosphor persistence keeps each path glowing for a moment before it fades, the way the screen of an analog scope does. Play a track made for it and the music oscilloscope draws the artist’s pictures; play anything else and you see its stereo shape.
Switch to XYTrigger, timebase and gain
The trigger waits for the wave to cross a level before each sweep, so a held note stays put. The timebase sets how many milliseconds fit across the screen: short to see one cycle, long to see a drum hit. Gain scales the trace up or down. Levels are relative to digital full scale, not volts.
Steady the TraceCheck the stereo image of a mix
XY mode doubles as a stereo check. A mono sound draws a thin diagonal line, a wide stereo mix makes a cloud, and a line on the opposite diagonal warns that one channel is flipped and will cancel when played in mono. A correlation meter puts a number on it, and a 45 degree rotation turns the view into a goniometer, with mono standing upright.
Check My StereoLive from the mic, fullscreen
Point your microphone at a tuning fork, a synth or your own voice and the audio oscilloscope follows it live. Go fullscreen for a projector, a lesson or a dark room, and save a PNG of any moment.
Use My MicrophoneLissajous Figures on the Music Oscilloscope
What two sine waves draw in XY mode at a few simple frequency ratios: the alphabet of oscilloscope music.
What you are looking at
Feed the left and right channels two sine waves and the ratio of their pitches sets the figure: 1:1 makes a circle or a line, 1:2 a figure eight, 2:3 and 3:4 a woven knot. Change the phase and each figure turns as if it were rotating in 3D. Oscilloscope music builds on the same idea with far more complex waves. Load a test tone or a track above and switch to XY.
Online Oscilloscope Specs
What this audio oscilloscope draws and how. Specs checked November 2026.
| This siteEzVisualizer oscilloscope | |
|---|---|
| Input | An audio file, your microphone or another browser tab (live; tab audio in desktop Chrome or Edge), or two demo signals: test tones and XY figures |
| Files | WAV, FLAC, MP3, M4A/AAC, OGG, or anything else your browser can decode; up to 400 MB and 20 minutes (10 on phones) |
| Time mode | Amplitude over time; trigger on the rising or falling edge at a level you set, or free run; timebase 0.05 to 100 ms per division; gain |
| XY mode | Left channel on X, right on Y, or rotated 45 degrees; adjustable phosphor persistence and glow; stereo correlation meter |
| Levels | Relative to digital full scale, not volts |
| Display | In page or fullscreen |
| Export | PNG of the current screen: up to 3840 × 2160 in time mode, 2160 × 2160 in XY |
| Other views | Waveform, spectrum and spectrogram of the same audio |
| Privacy and price | Runs in your browser, nothing uploaded; free, no account |
Audio Oscilloscope Options Compared
Compared by type of tool. A bench scope measures circuits; desktop oscilloscope music software is built for composing; this page is for watching and checking sound.
| This siteEzVisualizer | Bench oscilloscope | Desktop oscilloscope music software | |
|---|---|---|---|
| Plays audio files | Yes | No | Yes |
| Live microphone | Yes | With a probe or mic preamp | Varies |
| XY mode with persistence | Yes | Yes, on most models | Yes |
| Measures voltage in circuits | No | Yes | No |
| Composes oscilloscope music | No | No | Yes, the main purpose |
| Install or hardware | None, runs in the browser | Hardware | Install |
| Price | Free | Hardware cost | Free or paid |
Who Uses an Online Oscilloscope
From oscilloscope music fans to physics teachers, here is who opens a scope for sound.
Synth players and sound designers
See what a filter does to a saw wave, how a square wave rounds off, or where a patch starts to clip. Check the harmonics in the spectrum analyzer.
Mix engineers
XY mode shows width and phase at a glance. Pair it with loudness and clipping checks in the waveform analyzer.
Physics and music teachers
Show a tuning fork’s sine, beats between two close notes, or Lissajous figures on a projector, live from the classroom mic.
VJs and visual artists
A glowing phosphor trace makes a striking backdrop. For full-screen visuals that react to a room, try the live audio visualizer.
Curious listeners
See what your voice, a bird or a favorite song looks like as a wave, then compare it in the online spectrogram.
Oscilloscope Online FAQ
XY mode, oscilloscope music and what an audio scope can and cannot measure.
What is oscilloscope music?
Stereo music made to be seen on an oscilloscope in XY mode. The left channel moves the trace sideways and the right channel moves it up and down, so the sound draws pictures and animations as it plays. Artists such as Jerobeam Fenderson and Hansi Raber (Hansi3D) pioneered it.
How do I view audio on an oscilloscope online?
Open the oscilloscope online at the top of this page, drop an audio file or turn on the microphone, and press play. Use time mode to see the waveform, or XY mode to see left against right. No scope, cables or install needed.
Is this online oscilloscope free?
Yes: both modes, fullscreen and PNG export, with no account and no time limit. It is a free oscilloscope for sound in any modern browser.
What is XY mode?
A scope mode that plots one signal against another instead of against time. Here the left channel is X and the right channel is Y, so a stereo track becomes a shape rather than a wave.
Why does my song look like a scribble in XY mode?
Because it was not written for it. Only oscilloscope music is shaped to draw pictures. An ordinary mix draws a cloud that shows its stereo width, which is useful in its own way.
Where can I find oscilloscope music to play?
Jerobeam Fenderson and Hansi3D publish theirs at oscilloscopemusic.com, and other artists release tracks too. Get WAV or FLAC files where you can: compression bends the picture. Then open them here.
Do I need oscilloscope music software?
Not to watch it: this page plays the files and draws them in XY mode. To compose your own, you need music oscilloscope software or synth plugins built for drawing with sound, which this page does not replace.
Can I use my microphone?
Yes. Allow microphone access and the scope follows the mic live. Most built-in mics are mono, so XY mode shows a line, and phone mics filter the deep bass. Levels are relative, not calibrated.
Can I measure electronics with this audio oscilloscope?
No. It only sees what your browser hears through a microphone or an audio file, limited to the audio range and with no voltage scale. For circuits, use a bench oscilloscope, and never connect anything but a proper audio source to your computer.
What is an oscillogram?
The picture an oscilloscope records: a trace of a signal over time. Saving a PNG from this page gives you an oscillogram of the current screen, in either mode.
What do trigger, timebase and gain do?
The trigger starts each sweep at the same point of the wave, so it stands still. The timebase sets how much time the screen shows. Gain makes the trace taller or shorter without changing the sound.
Why does a mono track draw a diagonal line?
In XY mode, identical left and right channels give equal X and Y values, which is a diagonal line. Stereo spreads it into a shape; a line on the other diagonal means one channel is inverted.
Can I make a video of the scope?
This page saves PNG stills. For a video, the audio visualizer has an Oscilloscope style that draws left against right over your cover art and exports an MP4, and the sound wave generator offers the same style.
Is an oscilloscope visualizer the same as a music visualizer?
An oscilloscope/visualizer is one kind of music visualizer: it shows the real waveform, nothing added. This oscilloscope audio visualizer stays true to the signal, which is why oscilloscope music works on it.
Is my audio uploaded?
No. Files and microphone audio are drawn inside your browser tab and never leave your device. Unlike an oscilloscope website that streams to a server, nothing is sent anywhere.
More Audio Analysis Tools
Turn the Oscilloscope Music Visualizer Into Video
Scope-style waveform videos, podcast clips and visualizers for every platform.
- Sound Wave GeneratorSound wave videos and images from any audio file.
- Audiogram GeneratorWaveform clips for podcast episodes and interviews.
- YouTube Visualizer16:9 visualizers for singles, albums and long mixes.
- TikTok VisualizerVertical 9:16 clips built around your hook.
- MP3 to MP4 ConverterYour MP3 and cover art as an MP4 that video sites accept.
- Circle Audio VisualizerRadial spectrum bars around your cover.
Open the Oscilloscope Online
Drop an audio file or turn on your microphone: the oscilloscope online draws the waveform as a steady trace, or left against right in XY mode for oscilloscope music. Free, private and in your browser.