Free Audio Visualizer

An audio visualizer turns sound into moving shapes. This one measures your song 30 times a second, once for every frame of the video, and splits each moment into bands of pitch, from deep bass to bright treble. How loud each band is decides how tall its bar stands, how wide its ribbon swells or how far its spoke reaches.

Movement matters as much as shape. Levels rise the instant a sound starts and fall back more slowly, so the picture follows the beat without flickering. A sudden attack, such as a drum hit or a plucked string, gets an extra lift above the band's recent average, which helps quieter, softer songs show their rhythm too.

The Oscilloscope is the one exception: it draws the sound wave itself rather than the bands, the way a lab scope traces a signal. Every style keeps a small resting shape in silence, so a quiet intro never leaves the screen empty.

Classic Bars draws a row of wide, rounded bars, a clean look that stays readable on a small screen. Neon Bars, the default, doubles the count with thin glowing bars over a fading reflection, which suits electronic, pop and anything with a strong low end.

Ribbon Wave joins the bands into layered, glowing ribbons that swell and narrow with the music, a softer look for ballads, ambient and acoustic songs. Circle Spectrum arranges 96 spokes around a centre disc that pulses with the bass and turns slowly; with a cover image, the art sits inside the circle.

Oscilloscope traces the raw sound wave as a single glowing line. It looks best on sparse mixes, spoken word and synth-led tracks, where the shape of the wave stays readable. Not sure which to use? Start the preview and switch styles while the song plays; the music keeps going, so you can compare them in seconds.

Pick the shape for where the video will live. Landscape 16:9 fills a YouTube player or a desktop screen. Vertical 9:16 fills a phone in TikTok, YouTube Shorts and Instagram Reels, and every style stays above the bottom fifth of the frame, where those apps lay captions and buttons over the video.

A cover image makes the video recognisable as your release. It's shown whole, never cropped, over a blurred and darkened copy of itself, with a soft shade under the visualizer so it stays readable on bright art. Without a cover, the visualizer plays on a plain dark background and becomes the whole picture.

Songs up to 8 minutes long can be turned into a video. For a teaser, trim the song to its strongest 30 to 60 seconds in an audio editor first; it renders faster and reaches the hook sooner. The finished MP4 uses H.264 and AAC at 30 frames per second, which the major video platforms accept as is.