mdn

MDN, short for Mozilla Developer Network, is a web documentation project maintained by Mozilla and a global community of contributors. It provides comprehensive, standards-focused references and tutorials for web technologies, with content covering HTML, CSS, JavaScript, Web APIs, and related topics such as accessibility, performance, and networking.

MDN Web Docs offers reference materials that describe syntax, usage, and behavior, complemented by examples, code snippets, and explanations designed for developers at various skill levels. It also includes learning resources, guides, and learning paths that help users understand concepts and build practical projects. A notable feature is the browser compatibility data that shows how features are supported across major browsers, helping developers assess cross-browser behavior.

Content on MDN is produced collaboratively and openly. Authors include Mozilla staff and community contributors, with updates reflecting evolving web standards. The site is widely used as an authoritative reference in the web developer community.

MDN content is available through an open license, and contributions are typically submitted via established workflows on public repositories. The project emphasizes open web standards and interoperability, aligning with organizations that shape the web.

MDN remains a central resource for learning and referencing web technologies, frequently cited in documentation, tutorials, and professional development.