Astro is a modern web framework built on React that provides lightning-fast performance with no JavaScript required for delivery, allowing websites to be entirely static while still supporting dynamic components. Next.js is an open-source React framework that adds structure and features to quickly create server-rendered React applications, offering pre-built techniques for data retrieval. Remix is an edge-native full-stack JavaScript framework that unifies client and server with web standards, providing a modern user experience without partial hydration support like Astro. All three frameworks have a low learning curve due to their React foundation and offer developer-friendly documentation.