A1Z26 Cipher Converter

Convert letters to A1Z26 number groups or decode 1-26 groups back to text.

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This converter maps English letters to their alphabet positions, from A=1 through Z=26. Use it for puzzle notes, classroom examples and quick checks of number-letter clues.

Input format

In encode mode, letters become numbers and spaces become slashes. In decode mode, separate numbers with spaces, commas or hyphens, and use a slash between words.

Scope

A1Z26 is intentionally simple and easy to reverse. It is not encryption for private information.