Cipher Auto-Decoder

Paste text and this tries Base64, Hex, Binary, URL-encoding, ROT13, and a Caesar brute-force — then flags the most English-like result.

Base64 Encoding Analysis

Cipher Auto-Decoder

Tries Base64, Hex, Binary, URL-encoding, ROT13, and a Caesar-shift brute force, then flags whichever result looks most like readable English. Runs entirely in your browser — nothing is sent anywhere.

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