LOCAL TEXT TOOL · VERIFIED LOCAL TOOL
A1Z26 cipher encoder and decoder
Convert letters to or from A1Z26 numbers.
LOCAL PROCESSING · No upload or network lookup · Maximum input 1 MB
Input
Result
Loading local tool…
All text conversion happens in this browser tab. You decide whether to copy or download the result. Outputs are not saved on CraftAI servers.
Convert A=1 through Z=26
Encode or decode simple alphabet-to-number substitutions for puzzles and teaching.
Is A1Z26 secure encryption?
No. It is a simple substitution cipher that is easy to reverse.
Related tools: caesar cipher encoder and decoder · rot13 text encoder