Is this JFIF converter safe?

Yes. All processing happens in your browser using WebAssembly and Web Workers. Files are never uploaded.

JXL is useful for next-gen archiving because of its HDR support.

Convert JFIF to JXL Online

Convert JFIF to JXL for archival-friendly or high-fidelity workflows. All processing happens locally in your browser with WebAssembly.

Allocating memory and preparing WebAssembly