Kiln is an editing tool for Clay, a content management system, designed to provide a powerful and intuitive interface for managing and editing content. It is particularly suited for large-scale publishing platforms, as evidenced by its use by major media outlets like New York Magazine, Vulture, The Cut, and Grub Street. Kiln is built as a component that integrates seamlessly into Clay-based sites, offering features like inlined scripts and styles for optimized performance.