← Polkadot

🌱 Mnemonic Accounts

Derive accounts from a mnemonic and a derivation path, the way Polkadot.js, Talisman and SubWallet do (substrate-bip39 with //hard and /soft junctions).

Mnemonic or 0x seed

Derivation path Password (///password) Key type Address format

Also list numbered accounts (path + //0, //1, …) Show secret keys

Runs locally in your browser. Don't paste keys that hold real funds. The dev phrase is public: anyone can use //Alice, //Bob and the others.

The 32-byte seed (mini-secret) is PBKDF2-HMAC-SHA512 with the mnemonic's entropy as the password, "mnemonic" + password as the salt and 2048 rounds — not the BIP-39 seed. Hard junctions (//) can't be linked to the parent key; soft junctions (/) can, and exist only for Sr25519. Numeric junctions are encoded as u64, others as SCALE strings.