CodebaseChat is an online tool that converts GitHub code repositories into files compatible with OpenAI's GPT or Assistants. It allows users to upload their codebases and generate an index file that can be used by GPT for functionalities such as code retrieval and auto-completion. CodebaseChat supports various popular programming languages and provides a user-friendly interface for managing and configuring GPT usage. This product is suitable for developers, researchers, and anyone who requires automated assistant interactions based on code repositories.