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How to convert NEF to JXL?
You can convert NEF to JPEG XL (JXL) with MConverter in three easy steps:
Choose NEF files from your device
At the top of this page, drag and drop your NEFs. You can also click to select NEF files using your operating system's file picker. Another method is to press the keyboard shortcut Ctrl+V (⌘+V on Mac) to paste a NEF file you have copied to clipboard. Converting a folder with NEF files to JXL is also supported: simply paste or drag and drop it.
Click or tap on JXL from the list of target formats
Alternatively, you can use the search field to quickly find the format you need, whether it's JXL or something else.
Download your JXL files, after MConverter has finished processing them
There's an option to automatically download the converted JXL files, so you don't have to press the download icon for each JXL. On desktop platforms, you can download the JXL files to a different folder by clicking on SAVE TO... You may see a share icon as well. Use it to directly share the JXLs with other apps.
About the formats
File extension
.nef
Category
Image file formats
Developed by
Nikon
Mime type
image/x-nikon-nef
Format description
No information is currently available.
File extension
.jxl
Category
Image file formats
Developed by
Joint Photographic Experts Group
Mime type
image/jxl
Format description
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 converting NEF to JXL
Can I convert NEF to JXL in bulk?
Yes, MConverter supports batch converting of multiple NEFs to JXLs simultaneously. You can even drag and drop folders containing NEFs to convert to JXL. Pasting NEF files and folders copied in the clipboard also works: use Ctrl+V.
Can I convert a NEF file to JXL, if its size is 2 GB?
Yes, with MConverter Pro you can convert big NEFs, up to 2 gigabytes each. The free version lets you convert files up to 100 MB. If you need to convert NEF files over 100 megabytes, try MConverter Pro. If your files aren’t over 1 GB, then you can use MConverter Plus instead, as it’s cheaper.
Is converting NEFs to JXL safe with MConverter?
Yes, we encrypt your connection using industry standards. Plus, your NEF 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 NEFs and other converted files immediately after finishing the conversion by clicking the bin icon. Join thousands who have trusted us to convert over 11,563,135 files so far.
How long does it take to convert NEF to 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).
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