Lit

Lit: A 5 KB library for building fast, interoperable Web Components using standard browser APIs (Custom Elements, Shadow DOM).

Lit is the lightweight library for crafting web components: it’s tiny, fast, and built on native browser standards. Weighing in at only 5 KB (minified and compressed), Lit provides the `LitElement` base class for reactive properties and scoped styles, plus the `lit-html` templating system for declarative, efficient DOM updates. This approach minimizes boilerplate and maximizes interoperability: every Lit component is a standard Web Component, ensuring seamless use across any framework—or none at all—making it ideal for robust design systems and future-proof applications.

https://lit.dev