70+ interactive visualizers and breakers. From a Caesar shift to cracking real Enigma traffic with the Bombe.
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ARIA is South Korea's national block cipher, a close cousin of AES that shares its S-box but mixes bytes with a different, self-inverse diffusion layer. Learn how its alternating rounds, key schedule, and 1/π constants work.
Camellia is the cipher that stands next to AES in international standards. Learn how this Japanese Feistel design combines byte S-boxes, a linear mixing layer, and key-dependent FL layers to match AES-level security.
CAST-128, also called CAST5, was the default cipher in some versions of PGP and GnuPG. Learn how its three alternating round functions, huge 8x32-bit S-boxes, and key-dependent rotations work, and why its 64-bit block now limits it.
Ever wondered how your data stays secure? Cipher Visualizers makes learning cryptography intuitive and engaging. We break down complex encryption algorithms into simple, interactive visualizations, allowing you to see the entire process flow from plaintext to ciphertext.
Watch algorithms like AES and RSA transform data in real-time. Follow every substitution, permutation, and key mix to truly understand the process, not just the theory.
Input your own custom data and keys. Pause, rewind, and inspect the state at any stage. See instantly how changing a single bit can affect the entire outcome.
Each visual step is paired with clear, concise explanations. Understand the "why" behind the math, not just the "how," with insights linked directly to the on-screen action.
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