Browse 314 websites in this category • Page 1 of 16
Sites where Web Framework is a core feature are shown first, marked with a Core badge.
Schema.org offers shared vocabularies that help you add structured data to your website, making your content more understandable to search engines and apps.
Explore microformats to add structured data to your web pages, find guides, tools, and community support for building a more data-rich web.
jQuery is a fast, lightweight JavaScript library that helps you simplify web development, making it easier to create interactive websites and apps.
Check your website’s HTML or XHTML for errors and standards compliance with this easy-to-use markup validation service from the World Wide Web Consortium.
Django is an open-source web framework for Python that helps you build secure, scalable websites quickly and efficiently.
Sass is a CSS extension language that lets you write cleaner, more powerful stylesheets for websites. It helps you organize and simplify your CSS code.
Prototype is an open-source JavaScript framework that helps developers build web applications more easily by handling cross-browser issues.
Leaflet is an open-source JavaScript library for building interactive, mobile-friendly maps on the web. Easily add custom maps to your website or app.
Backbone.js is a JavaScript framework that helps you build structured web apps with models, views, and easy API connections using RESTful JSON.
JSON-LD.org helps you learn, use, and test JSON-LD for connecting data on the web, offering guides, documentation, and an interactive playground.
The Khronos Group creates and manages open standards for 3D graphics, VR/AR, parallel computing, and machine learning to support cross-platform development.
WebKit is an open source web browser engine powering Safari and other apps, offering features, documentation, and ways to contribute or report bugs.
phpMyAdmin is a free web-based tool that lets you manage MySQL or MariaDB databases easily, offering a user-friendly interface for common database tasks.
Next.js is a full-stack web framework for building fast, scalable React applications, offering features like server-side rendering and easy routing.
Official Less.js documentation for developers to learn, use, and reference Less, a CSS extension language with variables, mixins, and functions.
Three.js is a JavaScript library that lets you create 3D graphics and interactive experiences directly in your web browser using simple code.