File Tree Navigation
Browse the full Codex source tree including Rust core, TypeScript CLI, and Python SDK with an intuitive expandable explorer.
OpenAI Codex Source
Select a file from the tree to view its contents and get an AI explanation.
Understand Codex,
one file at a time
Explore the OpenAI Codex repository with an AI-powered code browser. Navigate the source tree, read files, and get instant explanations of how each component works.
AI File Analysis
Click "Analyze with AI" on any source file to get a detailed explanation of its purpose, key concepts, and role in the architecture.
Architecture Overview
Visit the Architecture page for an AI-generated deep-dive into how Codex components interact and the overall execution flow.