Design multi-layer CSS box shadows with live blur, spread, and inset controls.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Enter or configure your parameters in the input panel.
The tool calculates and formats the result instantly in real-time.
Click copy or download to export your results.
No, Utilifi processes all data 100% locally in your browser sandbox.
Yes, all Utilifi utilities are free with unlimited usage.
Zero-egress companion tools in the Color & Palette suite
Generate lightweight CSS linear-gradient checkerboard grids for transparent canvas backgrounds.
Generate high-contrast, low-tension palettes (Base, +150°, +210°) on the 360° color wheel.
Generate modern iOS / macOS frosted glass cards with translucent borders and backdrop blurs.
Generate vibrant 4-color palettes spaced evenly at 90° angles around the color wheel.
