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Convert J2K to JXL

Convert J2K images to JXL format, edit and optimize images online and free.

Convert J2K to JXL
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JPEG 2000 Code Stream Syntax (.j2k)

J2K Converter

JPEG XL Image (.jxl)

JXL Converter

How to convert J2K to JXL?

  1. Upload J2K File

    Select any J2K file from your device to start uploading it.

  2. Select J2K Tools

    For an advanced conversion, use the J2K to JXL optional tools available on the preview page and click the Convert button.

  3. Download Your JXL

    You will be redirected to the download page to see the conversion status and download your JXL file.

Convert J2K to JXL

Frequently Asked Questions

How to change J2K format to JXL?

To change J2K format to JXL, upload your J2K file to proceed to the preview page. Use any available tools if you want to edit and manipulate your J2K file. Click on the convert button and wait for the convert to complete. Download the converted JXL file afterward.

Convert Files on Desktop

macOS
Windows
Linux

Convert J2K to JXL on macOS

Follow steps below if you have installed Vertopal CLI on your macOS system.

  1. Open macOS Terminal.
  2. Either cd to J2K file location or include path to your input file.
  3. Paste and execute the command below, substituting in your J2K_INPUT_FILE name or path. $ vertopal convert J2K_INPUT_FILE --to jxl

Convert J2K to JXL on Windows

Follow steps below if you have installed Vertopal CLI on your Windows system.

  1. Open Command Prompt or Windows PowerShell.
  2. Either cd to J2K file location or include path to your input file.
  3. Paste and execute the command below, substituting in your J2K_INPUT_FILE name or path. $ vertopal convert J2K_INPUT_FILE --to jxl

Convert J2K to JXL on Linux

Follow steps below if you have installed Vertopal CLI on your Linux system.

  1. Open Linux Terminal.
  2. Either cd to J2K file location or include path to your input file.
  3. Paste and execute the command below, substituting in your J2K_INPUT_FILE name or path. $ vertopal convert J2K_INPUT_FILE --to jxl

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