Vertopal — Free Online Converter
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Convert J2K to JNG

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

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JPEG 2000 Code Stream Syntax (.j2k)

J2K Converter

Multiple-image Network Graphics (.jng)

JNG Converter

How to convert J2K to JNG?

  1. Upload J2K File

    Start uploading a J2K image by clicking the Choose File button or drag & dropping your J2K file.

  2. Select J2K Tools

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

  3. Download Your JNG

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

Convert J2K to JNG

Frequently Asked Questions

How to change J2K format to JNG?

To change J2K format to JNG, 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 JNG file afterward.

Convert Files on Desktop

macOS
Windows
Linux

Convert J2K to JNG 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 jng

Convert J2K to JNG 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 jng

Convert J2K to JNG 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 jng

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