JPEG XL is technically excellent and barely supported anywhere yet. Filemorph converts a JXL file to a plain JPG on your iPhone so it actually opens where you need it to.
JPEG XL (JXL) is a genuinely better format than JPG on paper, but browser and app support remains patchy years after its release — plenty of software simply refuses to open a .jxl file. If you received one from a photographer, an archive or a specialized tool, you likely need it in a format your other apps actually recognize.
Filemorph decodes the JXL and re-encodes it as a standard JPG using ImageIO, producing a file that opens in every photo app, browser and messaging tool without exception.
In the app: Convert → To JPEG.
JPG remains the one format that is guaranteed to open everywhere, decades after JPEG XL and every other newer format arrived. Convert to JPG whenever you need to guarantee the image opens for someone else, and keep JXL only where you know the recipient supports it.
Yes. Unlike web converters that upload your files to a server, Filemorph converts every file locally using Apple's frameworks. Nothing leaves your device, and it works with no internet connection. This conversion is in the free tier.
JPEG XL support varies widely across apps, browsers and operating systems. Many current tools still do not read it, which is why converting to JPG is the more reliable option.
There is some recompression, but at Filemorph's default settings the difference is not visible for normal sharing and viewing.
Yes, it is part of Filemorph's free tier.
Free, on-device, no upload. Plus 300+ more file operations.
Download on theApp Store