Free Online Tools
A collection of free encoding and decoding tools for puzzles, cryptography, and more. No signup required.
Encoding
Letters to Numbers Converter
Convert letters to their numeric positions (A=1, B=2...Z=26). Supports A1Z26, ASCII, hexadecimal, and binary encoding.
Encoding
NATO Phonetic Alphabet Translator
Convert text to NATO/ICAO phonetic alphabet and other spelling alphabets including Dutch, German, Swedish, and Russian.
Conversion
Phone Number Converter
Convert vanity phone numbers like 1-800-FLOWERS to digits or see letter options for any phone number using the telephone keypad.
Analysis
Cipher Identifier
Analyze encrypted text and identify the cipher or encoding type. Detects Base64, hex, binary, A1Z26, Morse code, Caesar cipher, and more.