Sécurité

Clé Privée vers Adresse

Dérivez des adresses Bitcoin (P2PKH) et Ethereum (EIP-55) à partir d'une clé privée secp256k1 de 32 octets — tous les calculs s'exécutent localement

Private Key → Address

Derive Bitcoin (P2PKH) and Ethereum (EIP-55) addresses from a 32-byte secp256k1 private key

Public Key

032d74a60a66f6e89bb1e71358bd2c8641b3293e0643a791918bb31a7fe150cae9
042d74a60a66f6e89bb1e71358bd2c8641b3293e0643a791918bb31a7fe150cae9719513773e0e037975c7fd4d9e3e044743e3b98f2afe67ab2ee834c852eed55f

Ethereum

0xbf96F1e315694a2583d81b79d850D5653d47Bd06

Bitcoin

1D7381Vj7J8CV8oUhQDQs3RWuMwULzU9yq
KzoKFhXZm3b3UX6xuLcuSTBXj1CoruzvouWQjm1dF9FAEwQ5XtXY
5JdKdrxs1v9cuTJfVdAVeV8pk3mN3FGqtrxbqCnTLWxmgvP6fJW

How it works

  • BTC and ETH both use the same secp256k1 curve, so a single 32-byte key derives addresses on both chains.
  • ETH address = last 20 bytes of keccak256(pubkey_xy), then EIP-55 checksum casing.
  • BTC P2PKH = base58check(0x00 || RIPEMD160(SHA256(pubkey))).
  • WIF (Wallet Import Format) is the base58check encoding of the private key for use in Bitcoin Core / Electrum.

Never paste a real private key controlling real funds into a website.

This tool computes everything locally with no network calls, but you cannot verify that with the naked eye. Use it only for testnet keys, learning, and burner wallets.

Powered by the audited @noble/curves and @noble/hashes libraries. Pure JavaScript, no WASM, no network.

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