Astro is a new, lightweight static site generator developed specifically for building modern websites. Its unique selling point is that it aims to eliminate the complexity associated with the build process, aiming to enable developers to concentrate on writing great code without worrying about how it will compile or how long it will take to deploy.
Nextra is a flexible and customizable documentation generator for Next.js projects. It provides a simple and intuitive way to create beautiful and interactive documentation websites. With Nextra, you can easily write your documentation in Markdown and customize the layout, styling, and navigation to fit your project's needs.
Astro is designed for large, scalable applications and supports popular frameworks like React, Vue, and Svelte. It provides a flexible architecture that allows developers to mix and match different technologies. Nextra, on the other hand, focuses on simplicity and is primarily built for creating documentation sites with Next.js.
Astro prioritizes performance and achieves fast loading times by pre-rendering pages and using critical CSS extraction. It also supports incremental static regeneration for dynamic content. Nextra leverages the performance benefits of Next.js and uses server-side rendering (SSR) or static site generation (SSG) depending on the configuration.
Community and Ecosystem
Astro has comprehensive and well-maintained documentation that covers various topics and features. It also offers tutorials and examples to help newcomers get started. Nextra has a decent documentation base, but it might not be as extensive as Astro's documentation.