For fun
Leetspeak Translator (1337)
Leetspeak, or 1337, swaps letters for lookalike numbers and symbols. E becomes 3, A becomes 4, and elite becomes 31337. Type text to convert it, or paste 1337 to read it back.
31173 h4ck3r
It started with hackers and gamers and became internet folklore. The conversion happens live in your browser.
How the Leetspeak (1337) works
Common letters are replaced by numbers or symbols that resemble them: a to 4, e to 3, i to 1, o to 0, s to 5, t to 7, and so on. Letters without a swap stay as they are.
Decoding reverses the number swaps back to letters. Because leet has many informal variants, this tool uses the most widely recognised substitutions.
Examples
History and origins
Leet grew out of 1980s bulletin board culture, where users replaced letters to slip past word filters and to mark themselves as insiders. Leet is short for elite.
It spread through early online gaming and hacker communities and now survives mostly as a nostalgic, playful style rather than a way to evade filters.
Frequently asked questions
What does 1337 mean?
1337 spells leet, short for elite. It is the signature word of leetspeak and a badge of internet old-school culture.
Is there one correct leetspeak?
No. Leet has many styles, from light letter swaps to dense symbol-heavy text. This translator uses the common, readable substitutions most people recognise.
Not sure this is the right tool?
If you have a message and you are not certain what it is, the cipher identifier reads the character set and the letter statistics and tells you which scheme it most likely uses, and why. It covers every code and cipher on this site.