Options
Build a black/white random bitmap (each pixel independently black with the chosen probability). Download as PNG — all local.
Uses your browser’s Web Crypto CSPRNG (crypto.getRandomValues) — strong PRNG for games, picks, and development. Not atmospheric true-random like RANDOM.ORG.
Bitmap
Black px0
Total0
FAQ
Is this RANDOM.ORG’s bitmap?
No. Pixels come from crypto.getRandomValues in your browser, not atmospheric noise or their API.