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Convert SIXEL to J2K

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

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DEC Six Pixels (.sixel)

The SIXEL, or "six pixels", is a bitmap graphics format created by Digital Equipment Corporation (DEC) for their terminals and printers. Initially designed for DEC dot matrix printers like the LA50, it enabled the efficient transfer of bitmap graphics using a series of ASCII characters. Each character represents a 6-pixel high row, making it suitable for 7-bit serial communication. This format was later adapted for modern terminal emulators, extending its utility beyond its original scope.

SIXEL Converter

JPEG 2000 Code Stream Syntax (.j2k)

The J2K file extension stands for JPEG 2000 Code Stream Syntax, a part of the JPEG 2000 standard developed by the Joint Photographic Experts Group (JPEG). Introduced in 2000, JPEG 2000 offers superior image compression and quality compared to the original JPEG format. The J2K codestream is highly flexible, supporting both lossy and lossless compression, and allows for scalable decoding, which means images can be efficiently accessed at various resolutions and quality levels. This makes J2K ideal for applications requiring high-quality image storage and transmission, such as medical imaging, digital cinema, and satellite imagery.

J2K Converter

How to convert SIXEL to J2K?

  1. Upload SIXEL File

    Select any SIXEL image you wish to convert by clicking the Choose File button.

  2. Select SIXEL Tools

    Pick any SIXEL to J2K tools if you need to edit your SIXEL file, then click the Convert button.

  3. Download Your J2K

    Let the file convert, then you can download your J2K file right afterward.

Convert SIXEL to J2K

Frequently Asked Questions

How to change SIXEL format to J2K?

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

Convert Files on Desktop

macOS
Windows
Linux

Convert SIXEL to J2K on macOS

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

  1. Open macOS Terminal.
  2. Either cd to SIXEL file location or include path to your input file.
  3. Paste and execute the command below, substituting in your SIXEL_INPUT_FILE name or path. $ vertopal convert SIXEL_INPUT_FILE --to j2k

Convert SIXEL to J2K 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 SIXEL file location or include path to your input file.
  3. Paste and execute the command below, substituting in your SIXEL_INPUT_FILE name or path. $ vertopal convert SIXEL_INPUT_FILE --to j2k

Convert SIXEL to J2K on Linux

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

  1. Open Linux Terminal.
  2. Either cd to SIXEL file location or include path to your input file.
  3. Paste and execute the command below, substituting in your SIXEL_INPUT_FILE name or path. $ vertopal convert SIXEL_INPUT_FILE --to j2k

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