Leetspeak Converter
Turn ordinary text into leetspeak with number swaps.
Quick answer: enter your details below and click Convert — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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Text & Writing
Enter your details below.
How to use
- Type or paste your text into the box.
- Click Convert.
- Copy the leetspeak version.
About this tool
Leetspeak Converter swaps certain letters for lookalike numbers, turning plain words into classic hacker-style text. The letter A becomes 4, E becomes 3, I becomes 1, O becomes 0, S becomes 5, and T becomes 7, with a few extra swaps for good measure.
Frequently asked questions
Can leetspeak be converted back to normal text?
Not reliably, because several letters can share one number, so the original wording cannot always be recovered.
Does it change capital letters?
The swaps apply regardless of case, and all other characters are left exactly as typed.