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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

02047e59dbaa9eacbc2ed214962f1ddf68e41bd6e4d207e5feefee8f6b71cff51b
04047e59dbaa9eacbc2ed214962f1ddf68e41bd6e4d207e5feefee8f6b71cff51b4fac843066bb381dc7746279f7050c064b79142a5d5d5d75687a0c70ac4aedf2

Ethereum

0x7fbCcde2c81B5f053A9f44624ce5157ed0583007

Bitcoin

1JR7Rgz4CtmWDfYVBLTHkvrana5kmADrsF
KxP7PGRSXTSY5McuPv3p4wEg7srNE6W3kWxER5MymqTc4e8PgRQi
5J5ZG1mxdMVScstdnyRerNobh5GiWhfkfrqJzZi1BAAerNvTsFJ

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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