GSAK is the free Geocaching Swiss Army Knife software that manages databases of Geocaches and waypoints.  This top notch software can manage multiple databases, send or receive waypoints (with Geocache information) to your GPSr or Google maps, convert to many mapping formats, provide extensive sorting and filter actions, and uses powerful macros to manipulate reports and output for a countless amount of situations (profile stats, challenge requirements, map distance/direction calculations, etc.).  GSAK is by far the most robust tool available to Geocachers!

Here are a few things you can do with GSAK (We could fill pages with GSAK’s capabilities and not scratch the surface)

• Download here
• Load Caches Into GSAK
• Macros
• Create detailed profile stats using graphs, charts, and maps
• Print cache lists
• See your current filter of caches in Google Earth or Google Maps
• Find caches that you have logged more than once
• Plan a caching trip with your friends and create a list of caches that haven’t been found by all participating users
• Publish logs to multiple caches easily (perfect for Power Trails)
• Create a list of caches into a GPX Route file
• Change the status of a large number of caches at once
• Use Macros that bring GSAK alive and provide customized data and reports