Patchword

Select two files or paste two texts and compare them.

Select two directories and compare them to see which files have been added, removed or modified, and selectively reset modified files to match the original ones. If files have slightly different names, you can match them by alphabetical order or a custom name map, and selectively rename them afterwards so that the names are equal.

Export patches from two compared text files, or apply saved patches to an existing file.

Create edit scripts that are applied non-destructively to a text file and export the resulting text.