Blockchain Watcher
Explore blockchain addresses instantly
Everything you need to explore blockchain data
Powerful features wrapped in a minimalist interface
Multi-chain Support
Seamlessly explore Bitcoin, Bitcoin Cash, and Ethereum addresses from a single interface.
Real-time Balance Checking
Get instant access to current balance information for any blockchain address.
Transaction History Overview
View comprehensive transaction history and activity for any address at a glance.
Address Validation
Automatically validate addresses to ensure accuracy before querying blockchain data.
Clean, Intuitive Interface
Minimal design that focuses on what matters - clear, actionable blockchain data.
Privacy-focused
No data collection, no tracking. Your queries stay between you and the blockchain.
How it works
Start exploring blockchain addresses in three simple steps
Install extension
Add Blockchain Watcher to Chrome with a single click from the Chrome Web Store.
Enter any blockchain address
Paste any BTC, BCH, or ETH address into the extension popup.
View detailed information
Instantly see balance, transaction history, and address details.
Supported Networks
Full support for the most popular blockchain networks
Bitcoin
BTC
Query Bitcoin addresses, check balances, and view transaction history on the BTC network.
Bitcoin Cash
BCH
Explore Bitcoin Cash addresses with real-time balance updates and transaction tracking.
Ethereum
ETH
Access Ethereum wallet information, token balances, and smart contract interactions.
Extension in action
Clean interface designed for quick blockchain queries
Blockchain Watcher
Enter address to explore
Balance
2.4851 ETH
≈ $5,847.32 USD
Transactions
147
Last Activity
2 hours ago