Calculate scaled width and height dimensions while locking exact aspect ratios.
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.
Input original width and height (e.g. 1920x1080).
Type desired target width or height in pixels.
Copy exact proportionally scaled dimension pair.
Height = Target Width / (Original Width / Original Height), maintaining exact proportions.
aspect-ratio: W / H allows elements to maintain proportions without explicit height calculations.
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