Fumadocs vs Astro Starlight: Features, Pricing and User Reviews 2026

Fumadocs is a documentation framework that helps developers build professional documentation sites using React and Next.js. Unlike traditional documentation tools, it gives you complete control over your content and design while handling the complex parts automatically.

It supports writing content in Markdown and MDX, which means you can use simple text formatting or add interactive React components. The framework includes built-in search, syntax highlighting, and beautiful pre-designed themes. It also works with any content source, whether you store your docs in files, a database, or a content management system.

Fumadocs is built around three parts: a content layer for managing your docs, a core library for features like search, and a UI library for beautiful components. You can use just what you need.

Astro Starlight is a documentation theme built on the Astro web framework. It provides a ready-made structure for creating documentation websites that are fast, accessible, and easy to maintain. Unlike other documentation tools, Starlight ships minimal JavaScript to the browser, resulting in faster load times and better performance.

The tool supports writing content in Markdown, MDX, and Markdoc formats, giving you flexibility in how you create your documentation. It includes automatic navigation generation, built-in search powered by Pagefind, and responsive design that works on all devices. Starlight also supports multiple languages out of the box, making it suitable for global documentation projects. The theme is highly customizable through configuration files, allowing you to match your brand while keeping the simplicity of setup.