Stable by seed
Use a human-readable seed for assets that should remain identical across builds and devices.
URL builder
Abstract placeholder generator
Create deterministic mesh, blob, aurora, marble, wave and low-poly imagery from a URL.
No accountNo API keyStable seeds
Rendering…Smallest suitable format
Auto keeps compact vectors as SVG and chooses AVIF with a WebP fallback for photographic output. JPEG is avoided when transparency is active.
Safe limits
Dimensions, text, effects and total pixels are validated before expensive work begins.