Why nobody can guess your seed phrase — the numbers are astronomical
BIP39 Seed Phrase (11 words + checksum)
Total Possible Combinations
2048 choices per word (128 for checksum)
1
How Big Is This Number?
Progress bars use a logarithmic scale to visualize exponential growth
Time to try all combinations at 1 trillion guesses/second
0 seconds
Easily crackable — keep adding words!
ℹ️ Simplifications
This is an educational visualization, not a technical specification. Some details are simplified:
Word selection: Real BIP39 generates random entropy bits first, then encodes them as words — not picked one-by-one like a slot machine.
Brute force time: Doesn't account for current limitations (key derivation) nor future quantum breakthroughs — real attacks are much slower today, but quantum computing is a factor to prepare for.
Passphrase: BIP39 supports an optional passphrase ("25th word") for additional security, not shown here.
Blockchain variations: Different blockchains may have different implementations — some don't use a checksum word, others use different word lists or derivation paths.