Zcash Labs Launches Zcash JS JavaScript Development Kit Zcash Labs has announced the launch of Zcash JS, a JavaScript development kit that developers can use to build web, server-side, and mobile applications based on Zcash. The official announcement states that applications that can be developed include wallets, lightweight clients, and data dashboards. Zcash Labs says it will continue to maintain Zcash JS and build a supporting ecosystem of tools and code repositories around it. Project documentation and the GitHub repository are now publicly available.