JP2 File - opening and understanding

Did your computer fail to open a JP2 file? We explain what they are used for and recommend software that we know can open or otherwise handle your .JP2 files.

What is a JP2 file?

Files that contain the .jp2 file extension normally store compressed bitmap images. These files are most commonly created using the JPEG2000 Core Coding application.

The JPEG2000 Core Coding software uses a wavelet compression algorithm instead of the common DCT compression method that is used with standard JPEG images.

The JP2 file format can be used to store either lossy or lossless compressed JPEG images and provides the user with a better quality and smaller file size than the traditional JPG image files.

JP2 files are identical to JPX files, except they are stored with the .jp2 file suffix rather than the .jpx file extension.

How to open JP2 files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension JP2 for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 10 different JP2 openers which you will find listed below.

Suggest another file format using extension JP2

While we know of one file format using the .JP2 file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .JP2 file.

Various viewers for this file format

These apps are known to open certain types of JP2 files. Remember, different programs may use JP2 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Free File ViewerFree File ViewerUser submitted
Pixillion Image ConverterPixillion Image ConverterUser submitted
WinRARWinRARUser submitted
QuickTimeQuickTimeUser submitted
IrfanViewIrfanViewUser submitted
HoneyView3HoneyView3User submitted
PhotoPad Image EditorPhotoPad Image EditorUser submitted
Picexa ViewerPicexa ViewerUser submitted
HoneyviewHoneyviewUser submitted
Paint Shop ProPaint Shop ProUser submitted
We have not verified any software that we know for certain will work with JP2-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with JP2-files. If you know one, please use the 'Suggest a program' link below and tell us about it!