Let's look at how we started, how MDN became the most trusted resource for web developers, the impact it's had on the open web, and yes, there's cake, too. Web APIs

All the latest developer tools in beta in addition to features like the Multi-line Console Editor and WebSocket Inspector. A separate profile and path so you can easily run it alongside Release or Beta …

MDN Web Docs, previously Mozilla Developer Network and formerly Mozilla Developer Center, is a documentation repository and learning resource for web developers.

Jul 26, 2017 · The Mozilla Developer Network (MDN) provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and HTML5 Apps. It also …

Mozilla network, officially called Mozilla Developer Network (MDN), is the web’s most comprehensive resource for web development documentation. MDN provides detailed guides, references, and …

Oct 29, 2025 · Teaches the essential skills and knowledge every front-end developer needs for career success and industry relevance, as defined in the MDN Curriculum. Created by the MDN community …

MDN's mission is to provide a blueprint for a better internet and empower a new generation of developers and content creators to build it. The power of MDN Web Docs lies in its vast community …

Firefox Developer Tools A set of tools for inspecting and editing web code. Our team works closely with the community and is always happy to welcome new contributors.

Nov 7, 2025 · HTML (HyperText Markup Language) is the most basic building block of the Web. It defines the meaning and structure of web content. Other technologies besides HTML are generally …

MDN's mission is simple: to provide developers with the information they need to easily build projects on the open Web. If it's an open technology exposed to the Web, we want to document it.