Turn a track into a broadcast-quality 1440p visualizer video. Every frame is computed offline from the audio itself — never a dropped frame, never a capture artifact, no matter how slow the machine.
Most visualizers play the track and screen-record the animation live — which drops frames and compresses badly. Pulse does the opposite: it analyzes the whole track first, then renders every single frame deterministically, with no clock to race against.
Meyda extracts spectral features — volume, bass/mid/high energy, onsets, a 32-band spectrum — while music-tempo detects BPM and beats. The result is one feature entry per output frame.
An offscreen Electron window steps through the track and calls the exact same render function used in the live preview, frame after frame, at whatever resolution and fps you export at.
Each frame's raw pixels stream directly into ffmpeg via stdin, muxed with the source audio. Output: H.264, CRF 16, up to 60fps — visually lossless, every time.
No mockups — this is the real app, mid-export, with a custom background and a layered scene running.
Every engine reads from the same standardized feature stream, so they all react to the same bass, mids, highs, onsets and beats. Enable a subset and Pulse rotates between them, or lock two together as stacked layers.
A WebGL port of the classic Winamp visualizer. Four bundled community preset packs — around 395 presets, searchable by name, with smooth crossfades between them.
A circular ring of audio-reactive spectrum bars, pulsing outward with the mix.
Concentric rings — one per low/mid/high band — expanding on beats. A calmer alternative to spectrum bars.
The classic mirrored equalizer layout, running across the middle of the frame.
An 8-fold radially symmetric mandala, built from audio-reactive petal shapes.
Hundreds of particles drifting along a swirling turbulent field. Bass and beats pump the turbulence and speed directly — an organic wind-map feel.
Overlapping harmonograph curves whose frequency ratios shift with spectral-band energy, so complexity tracks the music.
Genuine deterministic chaos, plotted point by point every frame — the shape reshapes continuously as its parameters drift with the music.
Each type has adjustable speed, size and density, and automatically picks up hues from whatever's on screen — so nothing clashes.
Sparks rising with turbulence, bursting on beats. Sharp techno / industrial energy.
Soft, slow-drifting light orbs — a gentler, trance-style alternative.
Points streaking outward from center, hyperspace-style, speed tied to overall energy.
Rotating triangles and hexagons drifting upward, pulsing with the beat. Crisper house-style look.
Short directional dashes that flash outward and fade fast on strong beats.
A glassmorphism now-playing panel — art, title, artist — fading in at the start and again for the outro.
| Setting | Detail |
|---|---|
| Resolutions | 16:9 (2560×1440) · 9:16 (1440×2560, Reels/TikTok/Shorts) · 1:1 (1440×1440) — always rendered at full quality regardless of orientation |
| Frame rate | Up to 60fps |
| Video | H.264, CRF 16 — visually lossless, yuv420p |
| Audio | AAC 320kbps, muxed directly from the source file |
| Input audio | WAV, MP3, FLAC, M4A, AAC, OGG |
| Background media | Images: PNG, JPG, WebP · Video: MP4, MOV, WebM, MKV |
| Backgrounds | Up to 4 images + 2 video clips, crossfading on a timer, with Ken Burns pan/zoom on stills |
| Safety | One-click epilepsy-safe mode dampens flash/pulse intensity app-wide |
Pulse is an actively developed personal project. It's honest about where it stands — check platform support before you dive in.
Pulse is free and built in spare time. If it has earned a spot in your export pipeline, a small tip keeps development going — no obligation, ever.
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