Letters to Numbers Converter A=1, A=0 & Reverse Alphabet Mapping
Encode messages or decode ciphers with custom alphabet position algorithms.
Bi-Directional Sync
No need to click a switch to reverse the tool. The Alpha and Numeric plates talk to each other simultaneously. Type letters to get numbers, or type numbers to get letters.
The Cryptex Core
A centralized, mechanical-looking cylinder that houses your cipher settings. It includes a moving ticker tape that visually confirms the active mapping (e.g., A=1, B=2).
Multiple Cipher Modes
Support for standard A=1 encoding, zero-indexed A=0 encoding for programmers, and the famous reverse Z=1 (Atbash-style) cipher for escape rooms and puzzles.
Custom Delimiters
Control exactly how your numeric output is formatted. Choose between dashes (8-5-12-12-15), spaces, or commas to match whatever decoding system you are using.
Zero-Latency Engine
There is no "Translate" button. Our JavaScript Regex engine fires on every keystroke, parsing strings and arrays in milliseconds to provide an instant flow state.
100% Client-Side
Whether you are encrypting a love letter, a secret password, or geocaching coordinates, the math happens strictly in your browser's RAM. Nothing is sent to a server.