J2K Converter
Use our trusted tool with a wide range of features to convert J2K images in seconds. It provides an advanced solution for file conversion and processing.
How to Convert .j2k Images in Bulk
1. Install reaConverter
2. Select J2K Files
3. Start Conversion
Convert J2K on your PC
For quick and effortless J2K file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.
Do more with your images
Converting J2K images for use in a workflow? Touch up, transform, apply editing and effects to your images during conversion.
Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.
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Last updated on February 26, 2025
J2K images: Frequently Asked Questions
What are J2K files?
JPEG 2000 (JP2 or JPEG 2000) is an image compression standard and coding system. It is based on the discrete wavelet transform, which can provide better image quality and compression ratios compared to traditional JPEG. The file extension of JPEG 2000 is commonly .j2k
Can reaConverter open J2K files?
reaConverter fully supports the J2K image format – open, edit, and export J2K files to any other popular file format with ease.
How do I change J2K to another format?
reaConverter is a user-friendly tool for converting J2K files. Once installed on your computer, it allows you to convert all your .j2k files at once with just a few clicks. You can even convert j2k images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert J2K online?
If you only want to convert a few J2K images, you are welcome to try our free online J2K converter.
How can I turn J2K files on my computer to another format?
The best way to convert J2K images on your PC is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from J2K.
How can I automate J2K files conversion?
reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.
Can I convert J2K files using scripts or the command-line interface?
reaConverter provides full access to all its features from the Windows command-line shell, including the command-line j2k converter.
What else can I do with reaConverter?
Convert Gerber filesCrop imagesConvert vector filesConvert RGB to CMYKChange format settings
What formats can I convert a J2K file to?
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