In this article, I will walk you through how to write out images as WebP images in Java. We also have a related article covering how to read WebP files in Java.
ImageIO does not support WebP images by default so you will need to use an ImageIO plugin or an external library. I will demonstrate using an Open source ImageIO plugin (which extends ImageIO to provide WebP support), and using the JDeli Image Library.
How to write a WebP image in Java with ImageIO
- Download webp-imageio plugin and add it to your classpath.
- Create a File (or OutputStream) object
File file = new File("/path/to/outputFile.webp"));
- Pass image, WebP type, and File (or OutputStream) object into write method
ImageIO.write(bufferedImage, "webp", file);
How to write an image as a WebP file with JDeli
- Add JDeli to your class or module path. (download link to the trial jar).
- Create a File (or OutputStream) object
File file = new File("/path/to/outputFile.webp"));
- Pass image, WEBP type, and File (or OutputStream) object into write method
JDeli.write(bufferedImage, "webp", file);
In JDeli you can also use a typesafe version
JDeli.write(bufferedImage, OutputFormat.WEBP, file);
or pass in a WebpEncoderOptions object for more control over WebP image output, such as level of Compression.
WebpEncoderOptions options = new WebpEncoderOptions();
JDeli.write(bufferedImage, options, file);
Why do developers choose JDeli over free alternatives?
- Works with newer image formats such as AVIF, HEIC, JPEG XL, WEBP (AVIF next release) that are not supported in Java.
- Better support than alternatives for JPEG, PNG, TIFF.
- Process images up to 3x faster than ImageIO and other Java image libraries.
- Prevent JVM crashes caused by native code in other image libraries such as ImageIO.
- Image security as JDeli processes images on your servers with no calls to any external system or third party library.
Are you a Java Developer working with Image files?
// Read an image
BufferedImage bufferedImage = JDeli.read(dicomImageFile);
// Read an image
BufferedImage bufferedImage = JDeli.read(heicImageFile);
// Write an image
JDeli.write(bufferedImage, "heic", outputStreamOrFile);
// Read an image
BufferedImage bufferedImage = JDeli.read(jpegImageFile);
// Write an image
JDeli.write(bufferedImage, "jpeg", outputStreamOrFile);
// Read an image
BufferedImage bufferedImage = JDeli.read(jpeg2000ImageFile);
// Write an image
JDeli.write(bufferedImage, "jpx", outputStreamOrFile);
// Write an image
JDeli.write(bufferedImage, "pdf", outputStreamOrFile);
// Read an image
BufferedImage bufferedImage = JDeli.read(pngImageFile);
// Write an image
JDeli.write(bufferedImage, "png", outputStreamOrFile);
// Read an image
BufferedImage bufferedImage = JDeli.read(tiffImageFile);
// Write an image
JDeli.write(bufferedImage, "tiff", outputStreamOrFile);
// Read an image
BufferedImage bufferedImage = JDeli.read(webpImageFile);
// Write an image
JDeli.write(bufferedImage, "webp", outputStreamOrFile);
I don’t see any difference between the lines of code for “how to write image with ImageIO” and “JDeli.” Did you accidentally copy the same lines of code to both examples?
Hi Roman. Thank you for letting us know, we must have missed that! We have now changed it and updated the article, hope that helps.