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ROT13 Encoder / Decoder

Apply ROT13 (or any Caesar shift) — the same step encodes and decodes. Free, no sign-up, and it runs in your browser — your files are never uploaded.

How to use

1. Type or paste text
2. Read the ROT13 result

Questions

Do I need an account?

No. Every tool is free to use without signing up.

Is my data uploaded?

No. This tool runs in your browser, so the text and files you use stay on your device.

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