BMP to JPEG XL (JXL) Converter • Online & Free • MConverter

Convert BMP to JPEG XL (JXL) in bulk.
Large BMP files are supported.

Select files

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Drop Tap to Choose BMP Files Here

Or Browse

Paste files with Ctrl+V

To select multiple, hold and drag on the file icons

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How to convert BMP to JXL?

You can convert BMP to JPEG XL (JXL) with MConverter in three easy steps:

Choose BMP files from your device or cloud storage
At the top of this page, drag and drop your BMPs.

Alternatively, click on the Browse box to select files with your device's file picker, or copy and paste a BMP file by pressing Ctrl+V (or ⌘+V on Mac).

MConverter can easily import BMPs from Google Drive, OneDrive, and Dropbox.

Converting a folder with BMP files to JXL is also supported: simply paste, drag and drop it, or use the ADD FOLDER button.
Click or tap on JXL from the list of target formats
You could also use the search box at the top right to quickly find the format you need, whether it's JXL or something else.
Get your JXL files after MConverter has finished processing them
Click on DOWNLOAD ALL to save your JXLs to your default downloads folder, or select SAVE TO to choose another location.

You can also configure automatic file downloads during the conversion process or in the settings menu. When enabled, each JXL file is downloaded as soon as its conversion is complete, without waiting for the others to finish.

If supported by your device, you'll see a Share icon, allowing you to directly send converted files to other apps.

Common questions about converting BMP to JXL

Will the image metadata be preserved when converting to JXL?

Yes, MConverter preserves as much metadata as possible during conversions to JPEG XL (JXL). This includes the image capture date, geolocation, camera model, and other relevant EXIF information. However, some metadata may be lost if the target format does not support it.
Also note that due to a bug on Android, only the geolocation may be omitted when selecting your images.

Is converting BMPs to JXL safe with MConverter?

For cloud-based conversions, MConverter encrypts your BMP files using the latest technologies, such as TLS 1.3 and HSTS. They are transmitted securely to our cloud service provider’s EU-based data center, which holds internationally recognized ISO 27001 and SOC 2 certifications. There, each conversion is processed in a separate, isolated environment. This technique further reduces the risk of a malicious file impacting other conversions.
Four hours after the conversion is complete, your files are automatically deleted from MConverter’s systems. You can also permanently delete your BMPs and other converted files immediately after finishing the conversion with the trash icon.
When converting on-device, your files never leave your device. MConverter processes them locally. Note: on-device conversions are not yet available for some hardware-intensive formats.
For both cloud and on-device conversions, your files are never scanned or shared with third parties for marketing purposes.
Join thousands who have trusted MConverter to process over 20,474,396 files so far.

Can I convert BMP to JXL in bulk?

Yes, MConverter supports batch converting of multiple BMPs to JXLs simultaneously. You can even drag and drop folders containing BMPs to convert to JXL.
Pasting BMP files and folders copied in the clipboard also works: use Ctrl+V.

Can I convert a BMP file to JXL, if its size is 10 GB?

Yes, with MConverter Max you can convert big BMPs, up to 10 gigabytes each.
The free version lets you convert files up to 100 MB. If you need to convert BMP files over 100 megabytes, try MConverter Max. If your files aren’t over 1 GB, then you can use MConverter Plus instead, as it’s cheaper.

How long does it take to convert BMP 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).

About the formats

File extension	.bmp
Category	Image file formats
Developed by	Microsoft
Mime type	image/bmp

Format description

BMP files, also known as bitmap image files, are uncompressed raster images. They contain a file header with a bitmap identifier, width, height and color settings among other information, as well as bitmap pixels with different colors.
Because of the lack of any compression, BMP files often have a relatively large file size. Therefore, it may be beneficial to convert such images to newer, better-optimized formats like WebP and AVIF.

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 these browsers to display JXL images. Safari supports only non-animated JPEG XL images since late 2023.

MConverter’s conversions from JPEG XL to other image formats are lossless, so there is no reduction in the quality of your images.
When converting from JPG to JXL, the output quality is mathematically lossless. In all other cases, the JPEG XL image quality is kept visually lossless. Your images will look visually identical.