SQLTools is a popular VSCode extension for connecting to various databases, with over 2 million downloads. The extension works using drivers installed separately from the main extension, allowing users to connect to different databases such as SingleStoreDB. Installing the driver can be done easily via code --install-extension mtxr.sqltools, and it offers features like running queries, browsing database schema, SQL auto completion, and more. The extension is part of a broader effort to make SingleStore a first-class citizen across multiple platforms, with plans for additional integrations in the coming months.