svelte-preprocess is a versatile tool for Svelte projects, enabling the use of languages like TypeScript, PostCSS, SCSS, and more directly within your Svelte components. It streamlines development by handling transformations and pre-compilation, meaning you can write modern code without extra build steps. Easily configure preprocessors to manage styles, scripting, and markup, ensuring efficient and maintainable code. A crucial dependency for professional Svelte workflows.