Convert normal text into leetspeak, the classic 1337 5p34k where letters are swapped for lookalike numbers and symbols, and decode it back to plain English again. Leetspeak started in early internet and gaming culture as a playful, hard to read style, and it still turns up in usernames, passwords, memes and edgy captions. This tool maps common letters to their leet equivalents such as a to 4, e to 3, i to 1, o to 0, s to 5 and t to 7, and it can reverse the swap to translate leet back to readable text. Type in the box and the result updates instantly. Everything runs in your browser, so your text never leaves your device and the converted output is ready to copy.
It swaps letters for lookalike numbers and symbols, such as e to 3 and a to 4, turning words into 1337 style text.
Yes. It reverses the common substitutions to turn leetspeak back into plain readable text.
It uses a consistent set of common leet substitutions so the same input always produces the same output.
Convert normal text into leetspeak, the classic 1337 5p34k where letters are swapped for lookalike numbers and symbols, and decode it back to plain English again. Leetspeak started in early internet and gaming culture as a playful, hard to read style, and it still turns up in usernames, passwords, memes and edgy captions.
Yes. Leetspeak Converter is completely free, with no sign-up and no usage limits.
Yes. Leetspeak Converter runs in any modern web browser. There is nothing to download or install.
Yes. Leetspeak Converter runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
Link this tool from a README, doc or site. The badge links back to this page.
[](https://yourhack.ai/leetspeak-converter)