P: Support JPEG XL (JXL) Export and Download in Lightroom for Web

Please add support for exporting and downloading images in the JPEG XL (.jxl) format directly from Lightroom for Web (lightroom.adobe.com).

Current Limitations At present, the web interface only offers standard JPEG options for downloaded items. While Lightroom desktop and mobile have introduced broader modern format support, the web ecosystem remains constrained to legacy formats, limiting modern delivery workflows when accessing collections remotely.

Key Benefits

• HDR and Wide Color Gamut Preservation: JPEG XL provides superior handling of high dynamic range (HDR) photography and wider color spaces without requiring lossy conversion or banding artifacts.

• Efficient File Sizes: JXL achieves significantly smaller file sizes than standard JPEG at equivalent or superior visual fidelity, saving bandwidth and cloud storage overhead.

• Workflow Consistency: Bringing JXL export options to Lightroom Online creates parity across the cloud ecosystem, allowing seamless handoffs regardless of whether the user edits on desktop, mobile, or browser.