A1Z26 Cipher (Letters to Numbers)
Security ToolsA=1, B=2 … Z=26 — letters to numbers and back
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All history →A1Z26 Cipher (Letters to Numbers) — at a glance
Change letters into their alphabet positions, or turn numbers back into text.
How to use it — step by step
Letters to encode, or numbers (1–26) separated by dashes and spaces to decode.
Add your text
Paste or type your input into the box. The Sample button fills in an example.
Choose the options
Pick the mode and settings you need. Results update when you run the tool again.
Press Run
The result is made instantly inside your browser.
Copy the result
Use the Copy button, or send it to another tool.
Pro tips
Small things that make the result better.
Quick facts
Frequently Asked Questions
What does A1Z26 mean?+
A is 1, B is 2 and so on up to Z which is 26.
How do I separate words?+
Words are split by spaces; letters inside a word by dashes.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
Is this tool really free?+
Yes — completely free, no signup, no watermark and no usage limit.