ChainIDE combines the simplicity of a source code editor with powerful developer tooling, like IntelliSense code completion and debugging. First and foremost, it is an editor that gets out of your way. The delightfully frictionless edit-build-debug cycle means less time fiddling with your environment, and more time executing your ideas. ChainIDE is a cloud-based multi-chain IDE that can be easily switched to different smart chains with only one click. It supports a multi-chain online IDE development environment. Due to its unmatched features and user-friendly interface, it is convenient for engineers to quickly set up and develop the environment, and realize the deployment and interaction of contracts on the chain, saving developers costs and accelerating blocks. The environment supported by ChainIDE includes Facebook Diem, Ethereum, Binance Smart Chain, AntFinancial OpenChain, FiscoBcos, Hyperledger Fabric, and a total of 10 different public and consortium chains. It has been used by developers in more than 120 countries, and more than 3.5 million contracts have been compiled at the same time. It can support a variety of underlying online compilation, chain deployment, contract interaction, and other functions.