MurmurHash3 calculator

Computes the 32-bit MurmurHash3 value of a string and the remainder used for experiment rollouts.

Runs locally

Computes the 32-bit MurmurHash3 value of a string. It is the same hash the Discord client uses when it picks which servers an experiment rolls out to.

Text to hash

Leading and trailing spaces and letter case are hashed exactly as typed.

Show rollout position (mod 10000)Discord decides which servers are in an experiment by checking which range this remainder falls into. It only means a rollout position when the hashed text has the "hash key:server ID" form.

Type something and the hash value will appear here.

Build a rollout key

Enter the experiment hash key (or the experiment name) and a server ID to fill the box above in the form Discord hashes.

Hash key or experiment nameServer ID

Two different strings can produce the same value, and the hash cannot be reversed reliably either. MurmurHash3 is a distribution hash, not a cryptographic one, so never use it to hide passwords or personal data.