Easy-bitcoin-js is a lightweight JavaScript library that simplifies Bitcoin development for web applications. It provides straightforward methods for generating private and public keys, creating and managing addresses, and constructing signed transactions without needing to master the low-level Bitcoin protocol.
Key Features
- Key Generation – Create secure elliptic-curve key pairs compatible with the Bitcoin network.
- Address Support – Generate Legacy (P2PKH) and modern SegWit (bech32) addresses from a public key.
- Transaction Building – Construct and sign raw transactions with multiple inputs and outputs.
- Unit Conversion – Easily convert between satoshis and BTC.
- Browser & Node.js Compatible – Works in both client-side and server-side environments.
Getting Started
Including Easy-bitcoin-js in your project is straightforward. You can install it via a package manager such as npm (if published) or add the minified script directly to your HTML page. Once loaded, create a new instance to start working with Bitcoin keys and transactions.
// Example snippet (conceptual)
const EasyBitcoin = require('easy-bitcoin-js');
const btc = new EasyBitcoin();
const keys = btc.generateKeyPair();
console.log('Address:', btc.p2pkhAddress(keys.publicKey));
Basic Transaction Example
With Easy-bitcoin-js you can build a simple payment transaction:
const tx = btc.createTransaction()
.from([{ txid: '...', vout: 0 }])
.to('1BitcoinExampleAddress', 100000)
.sign(keys.privateKey);
console.log('Raw hex:', tx.toHex());
Always test on Bitcoin testnet first to avoid losing real funds.
Security Considerations
- Never expose your private keys in client-side code that can be inspected.
- Use secure random number generators for key creation.
- Verify transaction details before broadcasting to the network.
For more cryptocurrency guides and tools, visit the CryptoGava homepage or check our Crypto category for related articles.