Blockchain - Bitcoin Block Explorer is popular and powerful bitcoin (the bitcoin core fork) block explorer. The web page also provides detailed Bitcoin usage statistics, block details, mining information, network activity charts and more.
The Bitcoin.com Explorer provides block, transaction, and address data for the Bitcoin Cash (BCH) and Bitcoin Core (BTC) chains. The data is displayed within an awesome interface and is available in several different languages.
BitRef will help you view the current balance of any Bitcoin address. You need only a device with the Internet and a valid Bitcoin address string. The tool shows the last 50 transactions for every address (or combination of addresses).