CodeMate is a VS Code extension that helps programmers write error-free code faster. It offers several key technical features: - Autocorrects errors in real-time without leaving the coding environment - Provides an intuitive interface for smoother coding experience - Automates tasks like debugging, error fixing, code reviewing, and optimization - Offers a chat functionality powered by GPT-4 for tailored answers based on the user's codebase - Provides detailed code review and performance reports