Encode
- Input
- Hello
- Expected output
- Uryyb
Apply again to reverse it.
Carregando ferramenta… / Loading tool…
rot13 translator
ROT13 shifts every letter 13 positions through the alphabet (A becomes N, B becomes O...). Since the alphabet has 26 letters, applying ROT13 twice returns the original text, that's why it has been used for decades on forums to hide spoilers reversibly, not for real security.
Apply again to reverse it.
Unreadable until decoded.
Select the Binary format, keep the direction on Text → Code and type your text. Each character becomes an 8-bit group (for example, 'A' becomes 01000001), separated by spaces. For the reverse, paste the binary and switch the direction to Code → Text, it works with space-separated groups or with one continuous run of bits.
Just apply ROT13 again to the encoded text, since the shift is 13 (half of 26), the operation undoes itself. There is no separate "key" needed to decode.
No, not at all. ROT13 can be reversed by anyone with no key or password needed. To actually protect data, use a real encryption algorithm, like AES.
No. Only letters A through Z are shifted; digits, spaces, punctuation and accents stay exactly as they were.
This format is self-inverse: applying it again undoes the conversion.
All translation happens in your browser. No text is ever sent to a server, safe for passwords, tokens and sensitive data.