Interactive Hash Microlab

Explore pre-image resistance, second pre-image resistance, collision resistance (MD5), the avalanche effect, and uniform output distribution.

Input A

Input B

Input A — Differences

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Input B — Differences

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Hash A
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Hash B
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Same?
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Hash A — Differences vs B

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Hash B — Differences vs A

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Tip: Switch algorithms, select a demo, or toggle hex: mode for binary collisions. Equal chars show green; differences show red.

Uniform Distribution Demo (continuous)

Hashes integers 0,1,2,… and updates continuously using the current algorithm.

Notes: MD5 is shown for educational contrast (collisions exist). SHA-1 is deprecated; SHA-256 remains standard.