In computing, file comparison is the calculation and display of the differences and similarities between data objects, typically text files such as source code.The methods, implementations, and results are typically called a diff, after the Unix diff utility. The output may be presented in a graphical user interface or used as part of larger tasks in networks, file systems, or revision control. PTSource DiffTool graphically compares two or more versions of a file. True to its name, PTSource DiffTool allows the user to easily merge the two or more versions into one file. The utility is often used to track changes to source code.

• Small (900k) & fully portable
• Visual differencing and merging of text files
• Syntax highlighting
• Handles WIN, UNIX and MAC text file formats
• Diff a single file, or entire directories
• File filters in directory diff
• Merge differences
• Directory recursion
• Integrated editor (with multi-level undo/redo)
• Find & Replace
• Drag & Drop support
• … and much more