Segurança

Chave Privada para Endereço

Derive endereços Bitcoin (P2PKH) e Ethereum (EIP-55) a partir de uma chave privada secp256k1 de 32 bytes — todos os cálculos ficam no seu navegador

Private Key → Address

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

Public Key

03c76ecf4ee5695d57bb2b76bd846514d3f5a83e6fa46f69b87c6850f3178bc7cf
04c76ecf4ee5695d57bb2b76bd846514d3f5a83e6fa46f69b87c6850f3178bc7cff5babed66296f53265bde452b92c9215209f196e82d7093f8798dd05b04d3743

Ethereum

0x19793fDBE558Df99C27D028Ff31Da4FF70828127

Bitcoin

1FApnM3TDYqBPfqJBxvXZMWJqW9BQooMwx
L5YBt5XcPNbniehYVNhnvrqCh1mJ9TPLGtDw7GMPPneDZHRuNBVw
5Khbdwwy3oaiAtb7EE5FwLu9zYtiww1XeaotECdnrZzphv3QSMN

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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