Your visualizer is deaf. Ours isn't.

Most visualizers map volume to size. MusicMind's 14 cognitive layers map musical key to color, chords to harmony, energy bands to motion, and drops to drama. Upload any MP3. Free.

Open Visualizer Studio

What MusicMind hears that others don't

14 cognitive layers. 6 shown here.

L1 — Section Detection

Verse, chorus, drop, bridge, intro, outro — identified automatically. Each section gets a distinct visual identity.

L3 — Chord Detection

Real-time chord recognition. A minor to C major key change? The palette shifts warm. Every harmonic move is visible.

L5 — Build Detection

Risers, snare rolls, filter sweeps, drops — detected and mapped to visual build-ups and scene-change triggers.

L6 — Key Color Mapping

Scriabin-inspired HSL assignment. A minor gets cool indigo. C major gets warm red. Musical colors, not random ones.

L8 — Spatial Intelligence

Stereo width, pan position, depth — mapped to visual space. Wide mixes get expansive scenes. Mono gets intimate.

L10 — Timbral Fingerprint

Texture, brightness, roughness, warmth — the 'feel' of sound. Warm pads get smooth textures. Harsh synths get sharp edges.

The comparison

Every other free visualizer

  • ✕ Volume bars — louder = bigger
  • ✕ Random colors, no musical relationship
  • ✕ One effect, no structure or arc
  • ✕ Looks the same for every song

Zeltor Labs

  • ✓ Key-driven color palettes from harmonic theory
  • ✓ Band-reactive visual layers (bass, drums, vocal energy)
  • ✓ Auto-directed scenes with dramatic arc
  • ✓ Every track gets a unique visual fingerprint

How it works

1

Upload any MP3

Drag and drop — analysis starts instantly.

2

MusicMind analyzes in real-time

Key, BPM, stems, drops, and energy extracted via ML.

3

Auto-Director builds your video

A screenplay with scenes, transitions, and dramatic arc.

MusicMind Engine. Client-side. Private.

MusicMind is a 14-layer musical cognition engine that analyzes BPM, key, chords, tension, builds, emotional arc, spatial characteristics, timbral texture, and more. Built on native Web Audio analysis and WebGL, the entire engine is client-side — your audio never leaves your browser.

Frequently Asked Questions

Is it really free?+
Yes — 13 free visual effects, full MusicMind analysis (BPM, key, energy bands, sections), and watermarked 720p export at full length are available on the free plan. Create a free account to open the visualizer studio, keep projects, and export. Artist unlocks all 49 effects and clean 1080p export.
Does my audio leave my browser?+
No. All audio analysis runs client-side using native Web Audio APIs. Your files are never uploaded to our servers. The entire engine — FFT, beat detection, energy band estimation — runs in your browser.
What audio formats are supported?+
MP3, WAV, FLAC, OGG, and AAC. The engine decodes audio via the Web Audio API, so anything your browser can play, Zeltor can analyze.
How is this different from a YouTube visualizer?+
YouTube visualizers are simple spectrum bars reacting to volume. Zeltor analyzes musical key, estimates bass, drum and vocal energy bands, detects song structure, and auto-directs scene changes with 50+ GPU effects. Every song gets a unique visual fingerprint.
Open Visualizer Studio