Free Software for anyone that enjoys Geocaching treasure hunts.
R.I. Software Developers
You can use this program to create and save an SHA1 signature for any files.
It can calculate and verify checksums (hash) of downloaded files.
Command-line based bulk SHA1 Hash Password Recovery Tool.
Free SHA1 Hash Generator Tool.
Geocache Manager is an intuitive geocache management and planning tool.
CWE computer services
Get waypoints from GPS devices and export to various formats.
HashTab provides OS extensions to calculate file hashes.
Calculates and displays checksums for any file using several algorithms.
Create and verify file checksums with this very simple utility.
The Earthmate GPS PN-20 updates the PN-20 with new features.
If you like to keep tabs on your geocaching statistics, you'll love CacheStats.
Spoiler Sync is a program written to help with geocaching.
CacheMagnet is a free, open source geocaching waypoint management program.
MiTAC International Corporation
It enables data transfer from Geocaching.com in GPX format.
Bit Debris Solutions
Converts geocaching Pocket Queries into readable reports.
WinCachebox is a paperless geocaching database management software.
A simple md5sum generator with SHA1 and MD5 support.
Unicode-enabled checksum tool for comparing files using CRC32, MD5, SHA1...
checksum a point-and-click sha1 and md5 hashing application for windows.
Shell extension for easily calculating a file's hash (MD5/SHA1/etc.).