Twig is a terminal-based viewer for JSON and YAML that makes navigating deeply nested data fast and intuitive. Instead of scrolling through raw text, you can move through the structure like a file tree, search instantly, and stay oriented even in large files. It runs fully locally, is read-only by design, and is built to handle real-world data sizes, making it well suited for logs, API responses, and configuration files in SSH or headless environments.