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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

035eb01aef88a0d191f2ace97f8d5fb4515fad4f28ee424033c61b52c2d1f4db05
045eb01aef88a0d191f2ace97f8d5fb4515fad4f28ee424033c61b52c2d1f4db05759efad60d0859e62a0572d893c8059ff3452c038d5ecafeba7cc2a102985cdd

Ethereum

0x1421fFe6877046Ad65197660DfAF6D0FCA0f290F

Bitcoin

1YwsWz1ZzD97DB6MV2h7qwjfgRrkbGvgR
L4mwBJSkP5JXT6GdtugNCLbDLPP2MZkdwQ8D8fJ8z4k1JDWH3r4p
5KXa7sAusmUXv36osjJ5MExL7CsJXVGKnreRxCrCKpX8mm6YeHT

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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