WebGLGradient Engine

OKLab color science. 13 fluid algorithms. Halftone, ASCII matrix, and three export formats. Free, runs entirely in your browser.

13 algorithms3 export formatsfree · no login

Color, set in motion.

Start with a palette. Explore shape, movement, and texture. Three palettes, one live WebGL shader.

Core glow · Nested SDF
Make your own ↗

From a spark to a finished asset.

01 / palette

Find your colors

Add up to eight colors or sample a reference image. Choose RGB, OKLab, or OKLCH blending.

02 / motion

Shape the movement

Explore 13 algorithms. Tune the flow and form, then layer grain, halftone, and an ASCII matrix.

03 / export

Take it into your work

Export a still PNG, an MP4 animation, or a self-contained HTML file to embed on the web.

Six Capabilities

  • Palette & Color Space8 colorsoklchoklabrgbUp to 8 colors with RGB, OKLCH, or OKLAB blending. Drag to reorder or sample colors from an image.
  • Shape & Flow13 algorithmsglslgpu13 GPU-shaded fluid algorithms — from sine waves to curl noise vortices and signed-distance field shapes.
  • Post-Processingfilm grain6 blend modesFilm grain layered over the gradient, with intensity control and six blend modes.
  • Halftone4 matrices6 shapesgpuDithered halftone rendered as a GPU compositing pass. Random plus 3 Bayer matrices × 6 dot shapes with contrast control.
  • ASCII Matrix7 charsetsmouseheatmapFull-canvas character grid that reacts to mouse proximity in real time. 7 character sets plus custom text input.
  • Exportpngmp4html1×–3×PNG and fixed-30fps MP4 at 1×, 2×, or 3× output scale, plus a self-contained HTML file with zero dependencies.

13 Algorithms

Every algorithm runs as a GLSL fragment shader on the GPU.

classic

  • Sin/CosSmooth periodic waves
  • Smooth NoiseSoft organic noise patterns
  • Linear StratifiedArchitectural layered bands

organic

  • Fractal (FBM)Layered noise at multiple scales
  • Domain WarpMarble-like UV distortion
  • Curl NoiseDivergence-free vortex flows
  • Polar VortexCosmic spiral structures

topology

  • Radial TopographyConcentric contour rings
  • Conic SweepAngular polar color sectors
  • Nested SDF ShapeGeometric glow from SDF math

diffusion

  • 3D Liquid DepthProcedural fluid depth
  • Diffusion FluidImage-warped blend field
  • Procedural SDFMulti-point distance fields

Export Anywhere

PNG

static asset

Full-resolution screenshot at 2× minimum device pixel ratio. Includes all active layers: gradient, halftone, ASCII matrix, and grain.

MP4

video loop

Offline frame-by-frame H.264 encoding at a fixed 30 fps, with optional ping-pong playback.

HTML

embed anywhere

Self-contained file with the full WebGL shader and all parameters embedded. Drop into an iframe with zero dependencies.

Built for Makers

ui/ux designer

Generate animated gradient backgrounds for landing pages and hero sections. Export PNG for static mockups or MP4 for presentations.

frontend developer

Export standalone HTML and embed via iframe. Full-bleed animated backgrounds in any web project, one file, no build step.

brand designer

Upload a brand reference photo to sample colors. Blend into a fluid gradient and export MP4 for social media.

content creator

Record short MP4 loops with ping-pong playback for seamless social media content. No watermark; encoding depends on browser and device support.

Free. No account. No install.