CipherLock
Learn ciphers by breaking them
CipherLock launched on May 1, 2026 with 67 votes, #631 of 20,538 launches that month and more than 95% of that year's launches.
What it does
CipherLock is a minimalist interactive hub to explore cryptography. Features Caesar, Vigenère, Morse, Atbash & Rail Fence ciphers. Includes an Academy for foundations and a Daily Enigma challenge. 100% client-side, open source & privacy-focused.
Free online cipher tool to encrypt and decrypt text: Caesar, Vigenère, AES, Morse, Base64. With plus a visual academy on how every cipher works. No tracking.
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…from cipherlock.me
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