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Random Seed Generator

Turn any text into a reproducible number sequence with mulberry32 or xorshift128, and see the seed hash behind it.

Seed a generator

Seed hash: —
First value: —
Values: —
These generators are fast and reproducible, but they are not cryptographically secure.

How to use the Random Seed Generator

  1. Type any seed text, or leave the example and change it later.
  2. Choose mulberry32 or xorshift128 and pick how many values you want.
  3. Generate the sequence, or use re-seed to continue from a fresh random seed.

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Frequently Asked Questions

Common questions about the free online random seed generator.

A seed is the starting value for a pseudo random generator, and the same seed always produces the same sequence of numbers.
Mulberry32 is a small fast 32 bit generator that passes common statistical tests and needs only a single integer seed.
Xorshift128 keeps four 32 bit words of state and mixes them with shifts and exclusive or operations on every step.
The text seed is hashed into four 32 bit words, and those words seed the generator so any text can be used.
Reseeding fills the box with a fresh random seed from your browser, which is handy for starting an unrelated sequence.
No. These generators are deterministic and not cryptographically secure, so never use them for keys or passwords.
Yes. Save the seed text and the generator name, and the exact same numbers will be produced again.
You can list decimals between zero and one, whole numbers in a range, or hexadecimal words for each value.
No. The whole sequence is generated in your browser and never uploaded.
Yes. The seed generator is completely free and unlimited.

Last updated: October 10, 2026