Syncomatic - Dry run

This option (from version 5) runs all Syncomatic's processing and uses the options chosen in the dialog box, but it does not apply any changes to the target files.

Instead it outputs to your web browser a modified version of the before/after report which allows you to see which images the plugin has matched, and review which fields will be changed when you run the plugin for real.

While it shows all affected IPTC fields, it doesn't display Develop adjustment values (though that is a possible future update).