Design alpha gradient masks for images, card fadeouts, and modern hero UI transitions.
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.
Choose from Bottom Fadeout, Top Fadeout, Center Spotlight, or Vignette.
Adjust start opaque point and end transparency percentages.
Copy the cross-browser -webkit-mask-image and mask-image stylesheet rules.
The mask-image CSS property hides portions of an element using the alpha channel of a gradient or SVG, creating smooth edge fadeouts.
Webkit-based browsers (Chrome, Safari, Edge) require the -webkit- prefix for full mask-image compatibility.
Zero-egress companion tools in the Developer Tools suite
Convert raw CSS declarations, selectors, and stylesheets into clean Tailwind CSS classes.
Transpile JSON Schema Draft 7 & 2020-12 into strict TypeScript interfaces and runtime Zod schemas.
Generate compliant RFC 1035 BIND zone files with SOA, NS, A, AAAA, CNAME, MX, and TXT records.
Convert legacy TypeScript numeric/string enums into modern, bundle-friendly string union types.
