Current Hash

Live: Updated as of --

Generate a random string

Generate A Random String

Derive custom values from the beacon

Length:
4 64
Include:
Select at least one character type
Source: Round #

Is it really random?

Is This Really Random?

Analyse the last rounds.

Live: Updated as of --

See the data

Benchmarked Against Gold Standards

For the last rounds.

Test rng.dev drand NIST

beacon, drand, NIST samples compared ยท Learn how we test

Live: Updated as of --

Where does our Entropy come from?

Entropy Sources

Our randomness comes from the blockchain, you can read more about it in our docs

Check our Math

Check Our Math

Prove It Works

1. Enter Your Text
/ 1000
2. Verify Hash
Your text:
Our result (server):
Your result (browser):
3. Code Snippet
4. Run It
Or open an online editor, and paste the code in
CodeChef OneCompiler
If your output shows "Match: YES", the computation is verified.

Why does this exist?

Why Does This Exist?

Verifiable randomness from eight blockchains. Free forever.

"Anyone who attempts to generate random numbers by deterministic means is, of course, living in a state of sin."
- John von Neumann

rng.dev combines randomness from eight independent blockchains to create a transparent, verifiable random number every minute. Every output can be independently verified. Every entropy source is documented. You can read more in our documentation.

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