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CipherLockcryptography hub
CipherLock is a free online cryptography tool and learning platform. Encrypt and decrypt text using the Caesar cipher, Vigenère cipher, AES encryption, Morse code, Base64 and Hexadecimal, directly in your browser, with no account required and zero tracking. The Academy section provides a complete guided introduction to cryptography, covering the history of classical ciphers including Atbash and the Rail Fence cipher, how substitution and transposition ciphers work, polyalphabetic encryption, modern symmetric and asymmetric cryptography, and the evolution from ancient ciphers to AES and post-quantum cryptography.
▎ chiffres modernes et classiques · apprentissage interactif · cryptographie appliquée

Outil de Chiffrement en Ligne – Chiffrez et Déchiffrez du Texte Gratuitement

CipherLock is a free browser-based cipher tool and cryptography academy. Use the interactive tool to encrypt or decrypt any text using classical and modern algorithms including the Caesar cipher, Vigenère cipher, AES-256, Morse code, Base64 and Hexadecimal. All processing happens client-side, so your messages never leave your browser.

New to cryptography? The CipherLock Academy teaches the complete history of secret codes and encryption, from the Scytale used by Spartan generals in 650 BC, through the Caesar cipher of ancient Rome, the Vigenère cipher known for 300 years as unbreakable, the Enigma machine broken by Alan Turing, up to modern AES encryption and post-quantum cryptography algorithms. Learn how substitution ciphers, transposition ciphers, polyalphabetic ciphers and symmetric key encryption work, with interactive examples and step-by-step explanations, for free, with no account required.

De César à Kyber. Chaque chiffre a une histoire, une faiblesse et une raison d'exister. Utilisez l'outil. Puis comprenez pourquoi il fonctionne.

Académie
Nouveau en cryptographie ? Commencez par la théorie→

Interactive Cipher Tool – Encrypt and decrypt with classic and modern algorithms

Cryptographie (clé ou règle requise)
Encodage (format standardisé)
▸ entrée
▸ sortie