Read and Convert JPEG XL Files in Java with JDeli
JDeli Image Library adds JPEG XL support to Java, allowing you to read JPEG XL files and convert them to other image formats without native dependencies. Java’s built-in ImageIO has no JPEG XL support, meaning any Java application that needs to handle JPEG XL files must rely on a third-party library. JDeli reads JPEG XL images entirely in pure Java, with no native binaries, no platform-specific setup, and no risk of JVM crashes from native code.
Frequently Asked Questions
Does Java support JPEG XL natively?
No. Java’s built-in ImageIO cannot read JPEG XL files. JDeli adds JPEG XL read support in pure Java.
Can JDeli read JPEG XL files in Java?
Yes. JDeli can read JPEG XL files and return a BufferedImage, which can then be processed or converted to any other supported format.
Can JDeli write JPEG XL files in Java?
No. JDeli reads JPEG XL files but does not write them. To save JPEG XL images in another format, convert them to a format JDeli can write, such as JPEG, PNG, or TIFF.
Which JPEG XL images can JDeli read?
JDeli reads grayscale, RGB, and Lab JPEG XL images, including lossless images, images with an embedded ICC profile, and images with alpha transparency.
How do I convert JPEG XL to JPEG in Java?
JDeli’s convert method provides a single call to convert directly from JPEG XL to JPEG. JDeli handles the conversion entirely in Java with no native tools required.
How do I convert JPEG XL to PNG in Java?
JDeli’s convert method provides a single call to convert directly from JPEG XL to PNG. JDeli handles the conversion entirely in Java with no native tools required.
Does JDeli’s JPEG XL support require native libraries?
No. JDeli’s JPEG XL implementation is pure Java. It runs consistently across platforms without the JVM crash risk that comes from native-dependent alternatives.
Can JDeli be used with ImageIO to read JPEG XL files?
Yes. JDeli is available as an ImageIO plugin. Once the JPEG XL reader is registered through the plugin, existing code that calls ImageIO.read() will use JDeli to read JPEG XL files. See the ImageIO migration guide for details.