Kaleidoscope's Folder Scope can show you the differences between the contents of two folders.
When comparing two directories, the Folder Scope will highlight files or folders that are different. Double-clicking on a folder or file pair will open them in a new tab for comparison.
Folder Differences
Files and folders on the left that do not have matches on the right are highlighted in red.
Files and folders on the right that do not have matches on the left are highlighted in green.
Files or folders that are equal on both sides are not highlighted.
Files or folders that are in both directories but are different are highlighted in blue. Differences could be due to file size, contents, etc.
Filtering Results
You can use the toolbar buttons in the top right of the window to filter the folder listing to make reviewing the differences easier. The window subtitle shows the count of different, equal and unmatched items.
Different will display files that are different and folders that have differences in their content.
Equal will display files and folders that are the same on both sides.
Unmatched will display items that do not have a match on the other side.
Kaleidoscope can help you merge your files from one side or both. Learn more about Folder Merging.