🔐
🔄

Encode and Decode ROT13

Use ROT13 to obscure text — the go-to cipher for spoilers, puzzle answers, and content warnings.

Giriş tələb olunmur

Shifts each letter by 13. Self-inverse — applying it twice returns the original.

Input
Output
Gur dhvpx oebja sbk whzcf bire gur ynml qbt.

ROT13 tips

🔄

ROT13 shifts every letter by 13 positions. It's self-inverse: applying it twice returns the original text — so encode = decode.

💡

ROT13 is widely used on forums and communities to hide spoilers. Readers can decode at their own choice without the answer being immediately visible.

🧩

Puzzle solutions and hints in some games are ROT13-encoded in readme files and FAQs — a convention dating back to Usenet in the 1980s.

📋

ROT13 does not encrypt letters, digits, or punctuation — only the 26 Latin letters are shifted. Non-letter characters pass through unchanged.

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