You can convert .jp2 images (JPEG 2000) to a TIFF format (.tif, .tiff) with plenty of graphics editors or even dedicated image conversion utilities. It should be easy enough as both file types are fairly well supported.
Convert JPEG 2000 (ISO 15444-1) picture to Aldus Tagged Image File Format (TIFF) bitmap image.
We found 9 software records in the database related to .jp2 to .tiff file format conversion.
Microsoft Windows software - convert jp2 to tiff on Windows
One of the best bitmap graphic editing program
Convert from jp2 file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned jp2 to tiff. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A powerful vector graphics editor from Adobe
A Geospatial data authoring software
A free graphics and photo editor and authoring tool
A dedicated conversion software
Apple macOS / Mac OS X software - convert jp2 to tiff on OS X
Mac version of popular digital image editor
Mac version of Adobe's vector graphics editor
A basic document and image viewer in Mac OS X
On-line services software - convert jp2 to tiff on web
An online graphics converter and resizer