Public Randomness Screensaver
The Public Randomness screensaver shows the NIST Randomness Beacon, which publishes 512 fresh random bits every sixty seconds, key-less. It's free, runs in your browser, and ESC exits.
How the Public Randomness screensaver works
The saver reads the source described above and draws it on a canvas — no account, no tracking.
The NIST Randomness Beacon, which publishes 512 fresh random bits every sixty seconds, key-less. The point is not the randomness but the proof: each pulse is signed and hashes the one before it, so anyone can verify a value existed at a given minute and was not chosen later.
It refreshes on a schedule, so what you see stays current.
Colours and any options can be changed in settings; nothing is stored beyond your own browser.
A worked example
The NIST Randomness Beacon, which publishes 512 fresh random bits every sixty seconds, key-less. The point is not the randomness but the proof: each pulse is signed and hashes the one before it, so anyone can verify a value existed at a given minute and was not chosen later.
Settings & tips
- Accent and Background recolour the display.
- Every value on screen comes from the live source — nothing is simulated.
- Press ESC to leave fullscreen.
Frequently asked questions
- Is this real data?
- Yes — it comes from the source named on this page and is refreshed on a schedule.
- Is a key needed?
- No. This source is fully key-less.
- Is it free?
- Yes — free, no download, in your browser.