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>> J2K file

J2K file format description

Many people share .j2k files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .j2k file can be edited, converted or printed with. On this page, we try to provide assistance for handling .j2k files.

1 filename extension(s) found in our database.

.jpc - JPEG 2000 Code-stream Data

JPC file is a JPEG 2000 Code-stream Data. JPEG 2000 is a wavelet-based image compression standard. It was created by the Joint Photographic Experts Group (JPEG).

.jpc file format description:
JPC format
Graphic files
- / -
j2c, j2k
JPEG 2000 Code-stream Data related links:
Graphics Converter Pro
JPEG 2000 Code-stream Data related extensions:
ZX Spectrum Hobetta Image
Pocket PC Bitmap Image
Amapi Image
Sony Mavica Picture
GoDot Image
TI-73 Bitmap

Naturally, other applications may also use the .j2k file extension. Even harmful programs can create .j2k files. Be especially cautious with .j2k files coming from an unknown source!

Can't open a .j2k file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .j2k file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

j2, j2l, jwk

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Gargoyle Story Document
Jazz Jackrabbit 2 Level Data
JSON Web Key

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If you have useful information about the .j2k file format, then write to us!