cmanager is a Java application which enables you to load one or multiple gpx cache files. You can view the cache details, map the caches, delte or copy caches and do basic filtering.
Further more you can check if you have already logged the caches on www.opencaching.de. This can be quite handy if you run this check against a pocket querry of your caches found on www.geocaching.com. You might be interested in reading wiki.opencaching.de/index.php/Cmanager for detailed instructions on this topic.
Source: The source code is availble under the terms of the GPLv3 and can be found at https://github.com/RoffelKartoffel/cmanager .
Downloads: Precompiled donwloads are available under https://github.com/RoffelKartoffel/cmanager/releases .
Feel free to send feedback and patches to jm @ rq-project.net .