Last updated: October 28, 2026 · By Ned Walsch

Cipher Identifier & Decoder

Paste ciphertext. The tool tries common encodings and classical ciphers — Base64/32/hex, binary, Morse, Caesar/ROT (all shifts), ROT13/47, Atbash, Vigenère and XOR with your key — and ranks the candidates by how English-like they look, so the real plaintext usually floats to the top. All in your browser.