Tap Code Translator — Free Online Tool

Encode text as prisoner tap-code row,column taps and decode taps back to letters (K→C). Tap Code Translator is a free online tool from the ToolsRift Text Encoding Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

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How to use Tap Code Translator

  1. Open the Tap Code Translator above — it loads instantly, no account needed.
  2. Enter or upload your input. Everything is processed locally on your device.
  3. Get your result immediately and copy or download it with one click.

Frequently asked questions

What is tap code?

A knock-based cipher on a 5×5 Polybius-style grid where each letter is signalled as a number of taps for the row, a pause, then taps for the column. It was used by American POWs in Vietnam.

Why is there no K?

The 25-cell grid omits K; the letter K is sent using the code for C. When decoding, the C cell always returns C.

How is the output formatted?

Each letter is shown as 'row,column' (for example T = 4,4). You can read each number as that many taps separated by a short pause.

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