Fast, royalty-free, interoperable codecs to deliver high-quality web content.
Add features to browsers for a customized experience.
A style sheet language used to define HTML document presentation.
Tools to help you make your web content more performant, delightful, and secure.
A featureful, privacy-respecting browser with the development tools you need.
A lightweight, dynamic scripting language essential to interactive web applications.
Products, tools, resources, and standards related to VR and AR on the web.
A systems programming language focused on safety and performance.
Open source tools and resources for voice interactivity development.
A low-level assembly-like language that runs with near-native performance.
An open IoT platform for monitoring and controlling devices over the web.
Use one codebase to make rich, interactive user experiences, no native code required.
Get the latest features, fast performance, and the development tools you need to build for the open web.
Resources for developers, by developers.
Browser extensions enable developers to add features to browsers and empower users to customize their browsing experience.
AV1 is a royalty-free open codec for transmitting high-quality video over the internet, created by Mozilla and the Alliance for Open Media.
CSS is a declarative stylesheet language used to describe the layout and presentation of HTML documents.
Build delightful, secure, performant web content more quickly and easily with a toolset backed by a strong community with your needs in mind.
Build delightful, secure, performant web content more quickly and easily in a featureful, privacy-respecting browser.
A lightweight, dynamic scripting language that is an essential part of interactive web applications.
Rust is a multi-paradigm systems programming language syntactically similar to C++. It is focused on safe concurrency and high performance.
A portfolio of open source tools and resources supporting the development of voice interactivity on the web and beyond.
WebAssembly (WASM) is a low-level assembly-like language with a compact binary format that runs with near-native performance.
Compatibility is about more than browsers. Thanks to open web standards, you can use one codebase to make rich, interactive user experiences for everything from simple feature phones to the latest game consoles, VR headsets, and future devices not yet imagined. No native code required. Mozilla is here to help.
WebThings is an open IoT platform from Mozilla for monitoring and controlling devices over the web. It includes the open source WebThings Gateway and Framework.