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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

0343dda83243fc2b45d94a0e11e78ebf2642f959e7c8490a5803e54b8980015582
0443dda83243fc2b45d94a0e11e78ebf2642f959e7c8490a5803e54b89800155822baa58278a827cb6f62933629c9df9c908d18468cc9f6cfca611ff0adc911cdb

Ethereum

0x954800A1333875036803bAc38750EC9d9EEf286f

Bitcoin

1H6KF1H43rkcr8RMs4m619f9AftxBFovfP
KzKsyak7ouyLRVh9SDpxqQpbSmzsouRu2zhkomAVZqy6QbfFvtaQ
5JX77UanVkimGyLyHbAxhRRq8eqTTwUPfWqf25Zxs32qMQ5BVvX

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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