An ERC721 explorer that is build on top of Ethereum blockchain. This site is build with React and Mobx as state manangement, the app directly interact with Ethereum blockchain through JSON-RPC library called Web3.js.
Steem Web Wallet, also known as SWW in short. A Steem wallet that can be used on modern web browser, to do micro payment with ease. With SWW, all transaction are signed on the front end and there is no any backend server involved.