Unified Diff Creator

Unified Diff Creator is a tiny Java-based application with a very simple purpose: it compares two text documents and creates a separate file with any differences. It doesn't integrate complicated options or customization preferences, making it accessible to all types of users.

As long as you have Java installed on your computer, you don't need to set up anything else. This means that you can save the JAR executable file anywhere on the disk and simply click it to launch Unified Diff Creator. There's also the possibility to keep it stored on a USB flash drive, in order to directly run it on any machine with minimum effort and no previous installers.

Represented by a small window that shows all options provided by the utility, the interface lets you indicate the two files using the file browser, specify an output directory and file name, and initialize the comparison procedure with one click.

If the files are identical, Unified Diff Creator doesn't create the new file and informs you of this. Otherwise, it generates a PATCH-formatted file that's not associated with any program, but it can be opened with a word processor. The new file reveals which characters are identical and which are different, marked by minus and plus signs.

We haven't come across any stability issues in our tests, since the app didn't hang, crash or prompt error dialogs. It generated the new file swiftly while remaining light on system resources usage.

Although it doesn't include richer options and customization preferences, Unified Diff Creator offers a simple solution to help you learn the differences between two text documents, and it can be easily used by anyone.