Bitcoin wallet import format

This is a bitcoin mnemonic generator and WIF converter. It is based on the BIP-0039. It generates 12 mnemonic word list, which can be used to generate a seed phrase, and it convert the phrase to private key and the private key is converted to WIF.

Installation

Using npm

npm i bitcoin-wif

Node.js

const BitcoinWIF = require("bitcoin-wif");

Basic Usage

let network = "testnet";
const btcWIF = new BitcoinWIF(network);
// network can be "mainnet", "testnet" and "regtest"

Example 1 - Generate a mnemonic phrase

let mnemonic = btcWIF.mnemonic();
console.log(mnemonic);
// cactus juice camera muscle recall turkey birth fever dust cactus average impact

Example 2 - Convert mnemonic phrase to seed

let words =
  "army van defense carry jealous true garbage claim echo media make crunch";
let seed = btcWIF.seed(words);
console.log(seed);
//  5b56c417303faa3fcba7e57400e120a0ca83ec5a4fc9ffba757fbe63fbd77a89a1a3be4c67196f57c39a88b76373733891bfaba16ed27a813ceed498804c0570

Example 3 - Convert seed to private key

let seedResult =
  "5b56c417303faa3fcba7e57400e120a0ca83ec5a4fc9ffba757fbe63fbd77a89a1a3be4c67196f57c39a88b76373733891bfaba16ed27a813ceed498804c0570";
let privateKey = btcWIF.privateKey(seedResult);
console.log(privateKey);
// b2a0d576b828b537688b561f2cfa8dac3602d54c62bde619ad5331e6c235ee26

Example 4 - Convert private key to WIF

let privateKeyResult =
  "619c335025c7f4012e556c2a58b2506e30b8511b53ade95ea316fd8c3286feb9";
let wif = btcWIF.wif(privateKeyResult);
console.log(wif);
// 92KuV1Mtf9jTttTrw1yawobsa9uCZGbfpambH8H1Y7KfdDxxc4d

Reference

• Mastering Bitcoin
• Seed Prase to private key
• Private key to wif : github gist
• Private key to wif : bitcoin wiki