7 Best Free and Open Source Graphical Linux Diff Tools
Linux has many good GUI tools that enable you to clearly see the difference between two files or two versions of the same file.
These utilities are an essential software development tool, as they visualize the differences between files or directories, merge files with differences, resolve conflicts and save output to a new file or patch, and assist file changes reviewing and comment production (e.g. approving source code changes before they get merged into a source tree). They help developers work on a file, passing it back and forth between each other. The diff tools are not only useful for showing differences in source code files; they can be used on many text-based file types as well. The visualizations make it easier to compare files.
Here’s our ratings chart capturing our verdict. Only free and open source software is eligible for inclusion. DiffPDF is different from the other tools, as it compares two PDF files.