Solid.js

Solid.js is a modern JavaScript framework for building reactive user interfaces. Unlike React (which uses virtual DOM reconciliation), Solid.js uses fine-grained reactivity—only components that depend on changed data re-execute. This results in smaller bundle sizes, faster performance, and less memory usage. Solid's syntax is similar to React (JSX, hooks-like API), making it accessible to React developers. Solid.js is particularly strong for performance-critical applications, islands architecture (mixing static and dynamic content), and edge-deployed apps that need small JavaScript bundles.