Letter2Number Converter

Overview

• Purpose: Map A-Z to 1-26 or convert numbers back into letters
• Input: Plain text (e.g. HELLO) or numeric sequence (e.g. 8 5 12 12 15)
• Output: Numbers or letters separated by your chosen divider

How to Use

1. Enter your data
   Paste letters or numbers into the input field.
2. Select Divider
   Choose Space or Hyphen to separate values.
3. Choose Mode
   Pick Encode to convert letters → numbers, or Decode to convert numbers → letters.
4. Process
   View the result in the output box.
5. Export
   Click Copy or Download to save your output as .txt.

Common Scenarios

• Creating simple alphabetic ciphers and puzzles
• Teaching the order of the alphabet to students
• Preparing datasets that require letter-index mapping

Pro Tips

• 🔄 Wrap numbers above 26 back to the start (e.g. 27 → 1) for cyclic ciphers
• ➖ Use the Hyphen divider for URL-safe codes like 8-5-12-12-15
• ✂️ Combine with the Text Transform tool for complex text workflows