Online
- Number base converter
- Binary Translator
- QR Reader
- Binary to Hex and back
- Image Ops
- Cipher Tools
- GCA Toolbox
- Geocaching Toolbox
- Introduction to cryptocaches by tenebrus
- Puzzle pages by Parmstro
- Solve My Math
- RSA Calculator
- Tineye Image finder
- Braingle Brain Teasers
- Numberworld
- Alphametric Puzzle Solver
- Kenny translator
- Coordinate converter
- HTML Color Picker
- Phone Number from Letters
- ROT13
- Decrypting Text
- An assortment of helpful tools: http://www.braingle.com/
- List of other sites, including parmstro: http://www.winterdragon.org/
Coordinate Checking Tools
- Evince: http://www.evince.locusprime.net/
- GeoCheck: http://www.geocheck.org/
- Certitudes: http://www.certitudes.org/
- GeoChecker: http://www.geochecker.com/
- Geochk: http://www.geochk.com/
Android
GCC – GeoCache Calculator: https://play.google.com/store/apps/details?id=eisbehr.gcc&hl=en
iOS
Downloadable Software
