capricorn86 / happy-dom

A JavaScript implementation of a web browser without its graphical user interface

A JavaScript implementation of a web browser without its graphical user interface.

Documentation | Getting started | Setup as Test Environment

DOM Features

• Custom Elements (Web Components)

• Declarative Shadow DOM

• Mutation Observer

• Tree Walker

• Fetch API

And much more..

Works With

• Vitest
• Bun
• Jest
• Testing Library
• Google LitElement
• Vue
• React
• Svelte
• Angular

Sponsors

Gold Sponsors

Sponsors

Backers

Contributing

See Contributing Guide.

License

MIT License © 2019-Present David Ortner