Sécurité

Clé Privée vers Adresse

Dérivez des adresses Bitcoin (P2PKH) et Ethereum (EIP-55) à partir d'une clé privée secp256k1 de 32 octets — tous les calculs s'exécutent localement

Private Key → Address

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

Public Key

038e27bad309a1323eea967b83ba6a29f9008f4a609445053655a7146b764dbc8e
048e27bad309a1323eea967b83ba6a29f9008f4a609445053655a7146b764dbc8e9eae19e09db8c622619bd33c58a6eb021d10d6bff2280f554c557d01e6c87afb

Ethereum

0x6dcfa4855e5c495F6052e5e510980D379BF60bDd

Bitcoin

13xTXBh8tzQSsd7BjBqYPiPPMGHChv2nWh
Kxc4Z3JtTU232F4nwodJdq1GHK69cRpiQoPjFfUK6ci1CFK7NP7r
5J8VSqZ9VCZQZuaV5iNpVjbVqZC8qornBNqeffd6TeYVbMRvVpW

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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