Tool Hub

ROT13 / Leet Speak

ROT13 bidirectional + 1337 leet conversion

Output

How to use

  1. Select a mode: ROT13 (symmetric letter shift), Leet encode, or Leet decode.
  2. Type or paste text into the input field.
  3. Read the transformed output in the output box.
  4. Copy the result with the copy button.

Examples

  • Typing 'Hello World' in ROT13 mode produces 'Uryyb Jbeyq'; applying ROT13 again to 'Uryyb Jbeyq' restores 'Hello World'.
  • Typing 'leet' in Leet encode mode produces '1337' using the standard substitution map (l→1, e→3, t→7).

Verify outputs before using in production. No warranty — see Terms.