Type your text, and the tool swaps letters for lookalike numbers and symbols to produce 1337 h4x0r leetspeak.
Leetspeak (1337) is an internet writing style that replaces letters with similar-looking numbers and symbols, such as E to 3 and A to 4.
Common substitutions include a→4, e→3, i→1, l→1, o→0, s→5, t→7, b→8, g→9, z→2 and c→(. Other letters stay the same.
It is popular in gaming usernames, gamertags, retro hacker culture and playful internet handles.