Zestial

Live

Music visualizers, in your browser.

Zestial turns a track into a visual. Forty-two effects and fifteen metadata overlays, every numeric parameter bindable to what the audio is actually doing, and a deterministic MP4 export sized for wherever you're posting it. The editor is free forever and un-watermarked; there's no account unless you want your work synced.

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42 effects · 15 overlays
MP4 export up to 4K
No account · Works offline

The Zestial editor, showing a composition of audio-reactive layers

The editor · free, un-watermarked, no account

What's inside

Everything reacts to the audio

That's the soul of it. Every other feature is chrome around the idea that a parameter should be able to follow the track.

42 effects, 15 overlays

Thirty scene effects and twelve post effects, plus overlays for title, artist, album art, BPM, lyrics and more.

Bound to the audio

Any numeric parameter can follow RMS, peak, beat, beat phase, progress or any of seven FFT bands, each with its own range, curve and smoothing.

Deterministic MP4 export

Every frame computed at an exact timestamp and muxed with audio via WebCodecs. Presets for Reels, TikTok, YouTube, Square and Spotify Canvas.

Custom shaders

Write GLSL directly, or build it in a node graph that compiles to GLSL. Both reachable from the Add menu.

Starter Looks

Five complete compositions applied in one click, and a Surprise Me roll that generates a full audio-reactive composition.

Installs and runs offline

A precached PWA with a purpose-built phone shell, not a squeezed desktop layout, that opens without a network.

Binding

Any parameter, any feature

Every numeric parameter in Zestial can be a constant, or bound to something the audio is doing. Each binding carries its own minimum and maximum, a response curve, and smoothing, so a kick can punch a scale parameter without the whole composition twitching.

Graph mode puts the whole composition on a node canvas where the edges are those bindings.

Bindable sources

RMS Peak Beat Beat phase Progress 7 FFT bands

Export presets

Reels / TikTok YouTube Square Spotify Canvas

Pricing