CodeCompanion is a desktop AI coding agent that turns ideas into fully functional applications in seconds. It researches your entire codebase to find relevant files and context before executing tasks, and operates in an environment with an integrated terminal and browser—just like a human developer. The app can execute shell commands, read output, open a web browser, and automatically fix developer console errors and warnings. It can also browse and search the web to extract the latest documentation and use it to update your code. All data is stored locally for privacy and security, and it works with any size project thanks to semantic code search and custom instructions. To get started, you simply bring your own API key and download the app for free.