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

0332d5790d0e61cbb7cec71237edd4f3d338fffd8f9fb1a225e190b6b5bc3c7f4b
0432d5790d0e61cbb7cec71237edd4f3d338fffd8f9fb1a225e190b6b5bc3c7f4bcd5844457235ce7834cd687dc2f88a90df4af8d6be88e86f34a19a015687689f

Ethereum

0x569FfD7648F4C2D1C6373d0600B003723c6080d5

Bitcoin

1KNrHycmPXQHp3oJcukyyRfwXJE6neGtYP
KyA7ueHCTgPhPxbUszA2bmSwfgz5y7cNudayi12Fii8FG9rvMhDZ
5JFkhvkzsuRdLhgz4rCZXzCKH1uMcNSEaDpaEpapHhapBkwys8X

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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