RNG Test Tool
Paste or upload raw RNG output and this tool runs the actual NIST statistical randomness tests â computing real p-values and pass/fail with nothing sent to a server. This is the same analysis that backs a CCF Labs certificate. The code runs entirely on this page; view source to audit it.
This runs 8 core tests from the NIST SP 800-22 battery (Frequency, Block Frequency, Runs, Longest Run of Ones, Discrete Fourier Transform, Serial, Approximate Entropy, and Cumulative Sums). Each computes a real p-value using the same statistical methods as the NIST reference suite. Passing means the output shows no statistically detectable departure from randomness for these tests.
A full CCF Labs certification goes further: it fixes the exact game build being tested, runs the battery over a certification-grade sample (⥠1,000,000 bits) collected under a defined sampling protocol, records the sample's SHA-256 hash, and version-locks the certificate to the build so it only covers the code that was actually tested. The complete procedure â sampling requirements, decision rule, and revocation policy â is published as CCF-STD-001, the RNG Statistical Testing Standard. A passing result here is a necessary signal, not a substitute for that process. Certification does not constitute gambling authorization or regulatory approval.