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

02013040a3363e8890bffbb1f899a32c306be87e4d1647fc3066e93e114d14e57c
04013040a3363e8890bffbb1f899a32c306be87e4d1647fc3066e93e114d14e57c7773d289395fcb378ae4cb146bc953144cfab343c56217881a1bd11a214d031c

Ethereum

0x289098B916bBA3C6FC6fE76F41c007bC6Bc23BfE

Bitcoin

18L4UCUgEYf2guT92nFD28s1cyeJsTMtk
KyncJggK97TCHs2e4oYfEMx8WDk9jz5qrmq3qSQecQ1rfnJT14wp
5JQ2CiAMsmxn9ogLj6ZYmiT5saFJqi2YuxvUq8ZzusyqQo52mZR

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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