Quickly add a border around a JPG picture.
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.
Select your image file.
Set margin thickness and pick your frame color.
Save your bordered picture.
No, the canvas expands to surround your original image.
Zero-egress companion tools in the Image Processing suite
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