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What is JXL?
Image file formats
Joint Photographic Experts Group
JPEG XL (or JXL) is a new image format with better compression than other image formats like legacy JPEG, PNG, WebP, AVIF and others. Designed for the modern web and with professional photography in mind, JPEG XL offers a more efficient way of storing images. In addition to supporting alpha channels/transparency, lossless, progressive loading and animations, the new image format promises high speed encoding and decoding even on phones.
JPEG XL has experimental support in Firefox, Chrome and other Chromium-based browsers like Edge. For now, you need to enable a feature flag for the browsers to display JXL images.
MConverter’s conversions from JPEG XL are lossless, so there is no reduction in the quality of your images.
When converting from JPG or GIF to JXL, the quality is mathematically lossless. In all other cases when converting to JXL, the image quality is kept visually lossless. Your images will look visually identical.
Common questions about JXL conversions
How to open a JXL file?
If you don't know how to view a JXL file, you can convert it to another format you already recognize. You can use MConverter for the conversion.
Can I convert JXL files in bulk?
Yes, MConverter supports batch converting of multiple JXL files at once. You can even drag and drop folders containing JXLs. Pasting JXL files and folders copied in the clipboard also works: use Ctrl+V.
Can I convert a JXL file, if its size is 1 GB?
Yes, with MConverter Premium you can convert big JXLs, up to 1 gigabyte each. The free version lets you convert files up to 100 MB. If you need to convert JXL files over 100 megabytes, try MConverter Premium.
Is converting JXLs safe with MConverter?
Yes, we encrypt your connection using industry standards. Plus, your JXL files are only accessible by you. 4 hours after the conversion completes, they are automatically deleted from MConverter’s servers. You can also delete your JXLs and other converted files immediately after finishing the conversion by clicking the bin icon. Join others who have trusted us to convert over 5,203,986 files so far.
How long does it take to convert JXL?
For most images, the wait should be less than a minute. If they are animated, it may take a little longer. However, MConverter also supports converting larger images, meaning that it could take a while (up to over an hour, for example).
JXL Converter Rating
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