What is the A1Z26 cipher?
A1Z26 is a simple letter-to-number substitution: A equals 1, B equals 2 and Z equals 26. It is common in beginner puzzles and classroom cryptography activities.
How to decode A1Z26
- Choose Decode numbers.
- Enter numbers from 1 to 26, separated by spaces or hyphens.
- Use a slash between words if needed.
Is A1Z26 secure?
No. It is a learning cipher rather than modern encryption, and it is easy to decode without a key.