Code-GPT is an AI-powered extension for Visual Studio Code (VSCode) that provides users with instant explanations for their code within the code editor.. Code-GPT allows users to save time and increase their coding understanding and efficiency, as well as improve their coding skills with in-depth code analysis.. The extension is easy to install and use; users can select the code they want to understand, open the Command Palette, type “Explain Selected Code” and enter their email address if prompted.. Once the response is received, the explanation is prepended to the selected code in the VSCode editor. Code-GPT is developed by VaibhavAcharya, a web developer and AI researcher, and is available for free..