BIP-39 · built in your hive, never leaves the browser
Honeycomb
Seed Builder
Pack the first 11 cells of your mnemonic in whatever order your brain will actually keep — a story, a phone number, a melody. The final cell is a checksum, so we'll show every word that's mathematically allowed to seal the comb.
0/12 words
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11
12✓ sum
Yes — this is safe by design
BIP-39 is a public standard. The 2048-word list, the SHA-256 checksum math, everything happens right here in your browser. No network calls, no logging.
The last word does the math
For a 12-word phrase the final word encodes a 4-bit checksum, so only 128 of the 2048 words can legally complete it.
Make it memorable
Build a tiny story: "the ancient tiger eats coffee under the bridge…" — order matters, and that order is yours.