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개인키에서 주소로

32바이트 secp256k1 개인키에서 비트코인(P2PKH)과 이더리움(EIP-55) 주소 도출 — 모든 계산은 브라우저에서 수행

Private Key → Address

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

Public Key

035765bd6e326eaac6bd722a849ef8ce44f31de32c945d390c41e08d114f243823
045765bd6e326eaac6bd722a849ef8ce44f31de32c945d390c41e08d114f243823441307661889b8efb8ec4f6b61067fd8e73f39143d5fa054ab7ac1bf807e2d75

Ethereum

0x3C50BD2B5E4f0559a93f13B0d428F665d971f71E

Bitcoin

12UaRRr88jM2JFcY79bKBq99osari22Bcn
L54XJeiYc87zkA5H8HSbmDokZRgtQ92XvBd2xkSWjiNZqS8qxaZm
5KbL6p4XGfKMLJ1WwDLPq5iQTqBrFkxdTYrrP9Uz2yVuJNkVySE

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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