GCTools provides the tools to get your next multi and mystery caches done easily. Have a look at the features:
Coordinates
Target Guidance
Point Projection
Distance Between Coordinates
Intersection of Lines
Intersection of Line and Circle
Intersection of Circles
Coordinate Converter
Ciphers
Affine Cipher
Alpha Cipher
Bacon Code
Baudot Code (CCITT-2)
Braille Alphabet
Caesar Cipher (ROT-N)
Finger Alphabet
Flag Alphabet
Pigpen/Freemason’s Cipher 1
Pigpen/Freemason’s Cipher 2
Hexahue Code
Mobile Cipher
Morse Code
Puzzle Code
ROT-5
ROT-13
ROT-18
ROT-47
Semaphore Alphabet
Shutter Telegraph
Tomtom Code
Vigenere Cipher/One Time Pad
Tools & Data Tables
Cross Sum
Latin/Arabic Numbers
Maya Numbers
Resistors
Periodic System
Color Alphabet
Prime Numbers
PI Digits
Alphabet A = 1
Alphabet A = 26
ASCII Code
Binary Code
German Police Codes
Converters
Coordinates Converter
ASCII/Number Systems Converter
Length Converter
Area Converter
Volume Converter
Mass Converter
Speed Converter
Time Converter
Pressure Converter
Temperature Converter
Angle Converter
Data Size Converter