Hash Collision Probability
Estimate collision probability for a uniform hash space.
Processing stays in your browser. Uses the birthday approximation for independent uniform hashes. This does not test a hash function or model adversarial collisions.
How to use the hash collision probability
Estimate collision probability for a uniform hash space. Complete the hash bits (1–512), number of hashes fields above. Choose Run tool, review the output, then copy or download the result.
Example
A larger bit width reduces estimated collision probability.
Good to know
Uses the birthday approximation for independent uniform hashes. This does not test a hash function or model adversarial collisions.