Module 01 · Physical D6
Dice-to-Mnemonic
READY
Roll a six-sided die. Rolls of 1–4 each contribute 2 bits
(1=00, 2=01, 3=10, 4=11).
Rolls of 5 or 6 are discarded, keeping every surviving value perfectly uniform.
Entropy strength
LAST
—
RECENT
no rolls yet
Progress
0 / 64 rolls · 0%
Entropy buffer
0 / 128 bits · 0 discarded
—
Keyboard: 123
456
Module 02 · Fair Coin
Coin-Flip Entropy to Mnemonic
READY
Flip a fair coin. Heads = 1, Tails = 0. Each flip contributes exactly 1 bit of entropy. Every flip is recorded; nothing is discarded.
Entropy strength
LAST
—
RECENT
no flips yet
Progress
0 / 128 flips · 0%
Entropy buffer
0 / 128 bits
—
Keyboard: H heads · T tails · ←→
Module 03 · Analysis
Seed Phrase Entropy Visualizer
READY
Paste a BIP39 English mnemonic of 12, 15, 18, 21 or 24 words. Each word is mapped to its
11-bit index; the concatenated bitstring is split into the entropy portion and the checksum portion,
and the checksum is verified against SHA-256(entropy).