JPG / PNG / WebP to JXL Bulk Converter
Switch to single file (server side) converter »Bulk converter works differently than the rest of the converters on this website. All files are processed in your browser and no data is sent to our servers. It's faster and more private (the files never leave your computer), but you won't be given links to the rest of the editing tools, so if you want to resize, crop, rotate or do anything other to the images, you'll need to upload them to the relevant tools.
Drag & Drop JPG / PNG / WebP images here or click to browse
Supports .jpg, .jpeg, .png, .webp filesOutput JXL images:
Batch Convert Images to JPEG XL (JXL)
A secure and efficient tool for bulk converting your existing images to the modern JPEG XL (JXL) format. JPEG XL offers superior compression and quality compared to older formats like JPEG and PNG, and it's designed to be a successor to the original JPEG format.
Lossless JPEG Transcoding: If you upload JPEG files, this converter will automatically use lossless transcoding (recompression). This means the original JPEG data is preserved perfectly bit-for-bit while reducing the file size by approx 20%, without any quality loss or re-encoding artifacts. They can be reconverted back to JPEG at any time without any loss of quality.
All conversion happens locally in your browser, so your photos remain private and never touch our servers. This also means no file size limits or upload waiting times.
Usage is simple: drag and drop your JPG, PNG, or WebP files, set your desired quality, and convert them all at once. Note that most current browsers do not have JXL support enabled by default, so you might not be able to preview the output images directly in the browser. Download the JXL files individually or as a ZIP archive, ready for use.
For converting the other way around, use our JXL to JPG bulk converter.