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NATO Phonetic Alphabet

Spell English letters with NATO code words, or decode code-word sequences into uppercase text.

✓ Browser-local processing
Up to 50,000 UTF-16 code units. Conversion runs locally.

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How to use NATO Phonetic Alphabet

Prepare a clear spelling of a name or reference for a call. Letter words use Alfa and Juliett; this is a spelling aid, not pronunciation audio or Morse code.

  1. Choose letters-to-code-words or code-words-to-letters.
  2. For decoding, separate code words with spaces and text words with /.
  3. Run the conversion and review any literal digits or punctuation.

Good to know

  • The official 26 letter code words are supported. Digits and punctuation remain literal, without aviation numeral pronunciation.
  • Whitespace collapses to word separators. A literal slash is escaped as [/]. Non-ASCII input is rejected in encoding mode.
  • Decoding outputs uppercase; it is not a translation, speech generator, or radio-procedure certification.

Common questions

Why Alfa rather than Alpha?

Alfa is the spelling in the international radiotelephony spelling alphabet; Juliett similarly has two final t letters.

How is this different from Morse?

It replaces letters with spoken code words rather than dot-and-dash signals.

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