Bitcoin Address Validation
Validate Bitcoin Addresses with Confidence
Validate Bitcoin addresses - P2WSH, P2WPKH, P2PKH, P2SH and P2TR. A lightweight, fast, and reliable JavaScript library supporting all major Bitcoin address formats.
Trusted by Industry Leaders
Used by leading companies and projects in the Bitcoin ecosystem
MetaMask
Leading Web3 wallet
The world's most popular Ethereum wallet with over 100 million users trusts this library for Bitcoin address validation.
Fedi
Superapp powered by communities
A federated Bitcoin custody platform building the future of community-driven Bitcoin infrastructure.
Caravan
by Unchained Capital
A Bitcoin multisig coordinator for secure collaborative custody, built by the team at Unchained Capital.
Join 1,800+ repositories using this library
View All DependentsTry It Live
Get detailed information about any Bitcoin address
Try these example addresses:
1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLybc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4bc1p5d7rjq7g6rdk2yhzks9smlaqtedr4dekq08ge8ztwac72sfr9rusxg3297mrsmaKFjW4XsUbcYCfu9HmMtqUq2mRKQHUQuick Installation
Get started in seconds with your favorite package manager
Why Choose This Library?
Built with performance and reliability in mind
Validates all Bitcoin address formats: Legacy (P2PKH), Script Hash (P2SH), SegWit (Bech32), and Taproot (P2TR).
Proven in production with over 5 million downloads and used by 1,800+ repositories. Trusted by developers worldwide.
Full TypeScript support with detailed type definitions for better development experience.
About the Author
Rui Gomes
CTO at OpenNode
CTO at OpenNode with 7 years in Bitcoin development. Leading Bitcoin payment infrastructure used by thousands of businesses globally. Trusted by industry experts for building reliable, production-grade Bitcoin tools.