Pad photos to exact 1:1, 4:5, or 16:9 ratios without cropping or stretching.
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.
Load your photo into the canvas workspace.
Choose 1:1, 4:5, 16:9, 9:16, 4:3, or 3:2.
Pick a custom padding color or enable transparent PNG padding.
Export the padded graphic.
Yes, the original image pixels are preserved without downsampling.
Yes, check the Transparent Padding option to export a transparent PNG.
Zero-egress companion tools in the Image Processing suite
Convert and compress WebP, PNG, and JPEG images locally with zero server uploads.
Clean, minify, and sanitize SVG files and markup locally.
Generate multi-size web, Apple Touch, and Android PWA favicons instantly.
