OutdoorOnly Toolkit
Field tools for geocachers
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Free
About
OutdoorOnly Toolkit is your digital field gear for geocaching — fast, offline and without an account.
22 tools in your pocket:
COORDINATES
• Convert between DD, DDM, DMS, UTM, RD and Plus Codes
• Project a waypoint from distance and bearing
• Find distance and compass bearing to a target
• Read your live GPS position
CODES & PUZZLES
• Morse, braille, pigpen, keypad and more
• Caesar, Vigenère, Atbash and other ciphers
• Letter values, checksums and number bases
• Text tools for mystery caches
WHY THIS APP
• Completely free, no ads, no account
• Works offline — even deep in the woods
• Privacy-friendly: your coordinates stay on your device
Made for the field, by OutdoorOnly.
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What's New in OutdoorOnly Toolkit
1.1.0
July 19, 2026
NL: "Formule-oplosser: met de nieuwe +-knop voeg je extra letters toe (t/m Z), zodat je antwoorden per station kunt noteren vóórdat je de eindformule intypt." EN: "Formula solver: use the new + button to add extra letters (up to Z), so you can jot down station answers before typing the final formula." DE: "Formel-Löser: Mit dem neuen +-Button fügst du zusätzliche Buchstaben hinzu (bis Z), um Antworten zu notieren, bevor du die Formel eintippst."
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