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            Building a better web, together

              We want to help you build beautiful, accessible, fast, and secure websites that work cross-browser, and for all of your users. This site is our home for content to help you on that journey, written by members of the Chrome team, and external experts who specialize in web development topics such as accessibility, performance, design, and more.

            AI and the web

              Discover resources created to help you understand and build performant, web-first experiences with AI.
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            Optimize INP

              Interaction to Next Paint (INP) is now a Core Web Vital metrics. Start measuring and optimizing your site's INP.
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            Payments & Identity

              Read up on the latest features and best practices when it comes to identity and payment processing.
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      Explore the web platform

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              The web platform is a constantly evolving ecosystem of browser features and APIs for developers to make websites that are easy and delightful to use. These pages are pathways for you to dive into each part of the web platform on web.dev—at your pace.
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            HTML

              HTML is the document layer of the web, providing structure and semantics for pages.
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            CSS

              CSS is the presentation layer of the web, and allows you to make your web pages look exactly like you imagine.
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            JavaScript

              JavaScript adds rich interactivity to web pages, so you can build websites that help users to perform tasks and accomplish goals.
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      Learn the web platform

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              New to the web platform? We've got you covered! Dive into each layer, with courses curated specifically for beginners to HTML, CSS, and JavaScript.

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            Learn HTML

              A solid overview of HTML for developers, from novice to expert level HTML.
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            Learn CSS

              A guide to CSS with modules covering everything from accessibility to z-index.
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            Learn JavaScript

              An in-depth course on the basics of JavaScript.
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            Keep up on web development news

              Read our blog to learn the latest news in web development, including new web platform features, updates to Baseline, AI, Core Web Vitals, and more.
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      Baseline

        Get up to speed with the latest updates and news on Baseline.
      More on Baseline

            July 2026 Baseline monthly digest

              Read about various happenings with Baseline during July 2026.

            June 2026 Baseline monthly digest

              Read about various happenings with Baseline during June 2026.

            Introducing Baseline Alerts

              Baseline Alerts have landed on the Web Platform Status dashboard. Learn how they can shorten the time between awareness of a web feature, and when you can adopt it.

            Effortlessly get Baseline target data with the updated Baseline Checker tool

              Get data to select your Baseline target with Google Analytics data—now faster and easier.

      CSS and UI design

        Learn the latest tips and techniques to use in your work, right now.
      Explore CSS

            Adapting typography to user preference using CSS

              Adapt a font to your users' preferences, so they're maximally comfortable reading your content.

            New CSS color spaces and functions in all major engines

              All major engines now support the new CSS color spaces and functions. Find out how they can bring vibrancy to your designs.

            What are source maps?

              Improve web debugging experience with source maps.

            CSS subgrid

              Subgrid is now interoperable across all three major engines. Find out how to use it.

      Core Web Vitals

        Build faster websites and apps by understanding Core Web Vitals and other metrics.
      Explore Core Web Vitals

            The most effective ways to improve Core Web Vitals

              A collection of best practices for optimizing websites' Core Web Vitals performance based on the state of the web.

            How to optimize INP

              Learn how to optimize for the Interaction to Next Paint metric.

            Common misconceptions about how to optimize LCP

              Explore common misconceptions about optimizing Largest Contentful Paint by looking beyond image optimization and considering factors like Time to First Byte and resource load delay.

            Best practices for measuring Web Vitals in the field

              Guidance for collecting and reporting Web Vitals quickly and reliably.

      Progressive Web Apps

        Create capable web experiences.
      More on PWA

            Learn PWA

              A course that breaks down every aspect of modern progressive web app development.

            TransformStream is now supported cross browser.

              Now that transform streams are supported in Safari, Firefox, and Chrome they are finally ready for prime time.

            New patterns for amazing apps

              Dive into a fantastic collection of new patterns for amazing apps, including clipboard patterns, file patterns, and advanced app patterns.

            Project Fugu API showcase

              On the Chrome Developers site, explore capabilities APIs.

      Accessible for all

        Learn how to make your sites more accessible for people with disabilities, whether permanent, temporary, or situational.
      More on accessibility

            Learn Accessibility

              Our new course is a great entry point and reference for accessibility topics.

            Testing web design color contrast

              An overview of three tools and techniques for testing and verifying accessible color contrast of your design.

            Building the main navigation for a website

              This tutorial describes how to build an accessible main navigation of a website. You learn about semantic HTML, accessibility, and how using ARIA attributes can sometimes do more harm than good.

            Community highlight: Melanie Sumner

              Read our interview with Melanie, a software engineer who specializes in digital accessibility.

      Payments and identity

        Find the latest techniques and best practices for payments and helping users safely log into your sites and apps.
      More on identity

            Create a passkey for passwordless logins

              Passkeys make user accounts safer, simpler, easier to use.

            Sign in with a passkey

              Create a sign in experience that uses passkeys while still accommodating existing password users.

            Web payments overview

              Learn more about Web Payments and how they work.

            Payment and address form best practices

              Maximize conversions by helping your users complete address and payment forms as quickly and easily as possible.

      Developer Newsletter

        Get the latest news, techniques and updates straight to your inbox.

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