Audio & Music tool
Audio Reaction Visualiser
Build a local playlist and play it through 13 colourful audio-reactive effects, including a flowing 3D soundscape and a real Mandelbrot journey that travels deeper with the music. Choose a theme, customise the colours or let random mode change the look automatically.
Live audio visualiser
Let your music move the screen
Choose one track or build a playlist, then fill the screen with colourful effects that react to the sound—all in your browser.
Build your playlist
Add up to 50 browser-supported tracks, each up to 100 MB. They play back-to-back in the order shown.Shape the visual
Processed privately in your browser — your audio and playlist are not uploaded.
Processed privately in your browser — your entries are not uploaded.
Good to know
How this tool works
Choose one or more browser-supported audio files, arrange your playlist and press Play. The display reacts to each track's frequency and waveform data in real time. Pick from 13 effects, including a flowing 3D soundscape and a Mandelbrot journey that travels deeper with the music, change the colours yourself or let random mode switch the look automatically. Your audio and playlist stay on this device.
Frequently asked questions
What is Audio Reaction Visualiser useful for?
Turn an uploaded track into a live, full-screen music visual. Listen through the finished file at a comfortable volume and keep the unedited original.
Is my information stored?
Your audio remains temporarily in this browser tab and is not uploaded or saved in browser storage. Reset releases the loaded track; your original file remains unchanged.
How accurate is the result?
The calculation follows the assumptions shown on the page. Rounding, provider methods and real-world charges can produce small differences.