Calculate black bar padding pixels ($Pad_{top}, Pad_{left}$) required to fit 16:9 videos into 9:16 vertical TikTok/Reels or 4:3 frames.
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.
Configure input parameters, values, or strings in the interactive interface.
Review real-time computation output and copy or download the generated result.
Yes, all computations run 100% locally in your web browser using Web APIs with zero data sent to external servers.
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