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KŌINI Dice — a simple, fair dice roller. Roll one or more six-sided dice with a single tap. Every roll uses your device's secure random generator for provably fair results. Works fully offline — no account, no ads, no tracking.
99 dice per press. True entropy from your device. 6^99 possible outcomes.
One press. 99 dice. Absolute randomness. KŌINI Dice rolls 99 individual six-sided dice the instant you press the button — every number created live by your device's own cryptographic core (SecRandomCopyBytes on iPhone, SecureRandom on Android). Nothing is pre-computed, nothing is stored, and there is no pool to pick from. Pure random generation, roll by roll. TRUE ENTROPY Every byte of randomness comes straight from your device's operating-system CSPRNG — the same hardware-backed source that secures your passwords and payments. Nothing is seeded, cached, or reused between presses. OPTIMIZED ENTROPY The raw entropy stream is distilled through an exact mapping: only bytes in the range 0–251 are consumed (252 = 6 x 42), so every face draws from an identical share of the stream — each outcome landing at exactly 1/6. Anything outside that range is discarded and instantly replaced with fresh entropy. ABSOLUTE SCALE With 99 live rolls there are 6^99 (about 1.0888 x 10^77) ways a sequence can land — more than the number of atoms in a hundred million observable-universe galaxies. Yours is created in real time, then gone the moment you clear it. COMPLETELY OFFLINE The app requests zero network permissions. Your rolls never leave your device — they can't. - 99 independent d6 rolls per press - Full numbered results grid with per-face counts and total - Haptic feedback, dark KŌINI design - VoiceOver / TalkBack accessible - No ads, no tracking, no accounts, no network From the team behind dice.koini.io.