When should I use JXL to PNG instead of JPG?
PNG keeps transparency for stickers, overlays, and design apps. JPG fills those pixels white. If you only need a photo that other apps and chats can open, use JXL to JPG.
Need the transparency from a JPEG XL, instead of a white JPG fill? Convert JXL to PNG on this device. This page defaults to PNG, and JPG is still there.
Processed locally, never uploaded
PNG keeps transparency for stickers, overlays, and design apps. JPG fills those pixels white. If you only need a photo that other apps and chats can open, use JXL to JPG.
Yes. Drop several JXL files and each one is converted on its own. Download them individually, or as one zip. You can add more files while a batch is running.
An animated JXL keeps the first frame only, as one still image. The page does not pretend the whole animation was converted. PNG keeps transparent areas. JPG fills them white. AVIF, WebP, and HEIC have their own local pages when those files won’t open.
It is not uploaded. Decoding runs in the page, so it does not depend on the browser being able to display JPEG XL. Camera data and location are removed unless you turn that off. If nothing writable is found, the page says so.