How to open DIFF files

Did your computer fail to open a DIFF file? We explain what DIFF files are and recommend software that we know can open or convert your files.

What is a DIFF file?

Files that contain the .diff file extension are most commonly used for difference data files. The DIFF files contain the patch script information for the difference data files that are saved with the .diff file suffix. These files are used to show the differences between two different files, such as the difference between a former and later file version.

These changes that are logged in a DIFF file are shown via per-line changes for text files and the output can be applied using a Unix program patch. This is why files with the .diff file extension are sometimes referred to as "patch" files.

Software that will open, convert or fix DIFF files

These apps are known to open certain types of DIFF files. Since many different programs may use DIFF files for different purposes, you may need to try a few of the apps to open your specific DIFF file.

Edge Code CCEdge Code CCUser submitted
BluefishBluefishUser submitted
BracketsBracketsUser submitted
FileViewProFileViewProUser submitted
We have not verified any programs that we know for certain can work with DIFF-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with DIFF-files. If you know one, please use the Suggest link below and tell us about it!