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Chrome DevTools is a set of web developer tools built directly into the Google Chrome browser. DevTools lets you edit pages on-the-fly and diagnose problems quickly, which helps you build better websites, faster.

Console insights and AI assistance help you debug and fix JavaScript errors, performance, and styling more efficiently.

Get a comprehensive and actionable view of your page's performance.

Learn how to inspect resources loaded by your page and edit them from your browser.

Analyze and overwrite network requests and responses on the fly.

Let Gemini help you analyze and improve your website's styling, network, sources, and performance.

Explore use cases for AI assistance in Chrome DevTools and learn how it can support your debugging workflow across styling, performance, and more.

Understand console messages and errors in DevTools and learn how to fix them - without any copy-pasting.

Learn how to record a performance trace in DevTools and analyze it to identify and fix performance issues.

Debug LCP issues and use CrUX data to see if you're debugging a similar experience to your users

Dive into the different types of browser cache and how to inspect and manage them in Chrome DevTools!

Trying to inspect an element, and “poof” it's gone? It's like your code is playing hide-and-seek with you!

Learn about all the features in the Performance panel: how to record a performance trace, how to view and analyze the trace, and more.

The Performance panel has been helping developers measure and optimize their runtime performance for the better part of 15 years. Learn how it's evolving going forward.

Annotate traces in place and save them directly within the trace file for straightforward sharing.

Learn about all the features in the Sources panel: how to view and edit files, debug JavaScript, and set up a workspace.

Workspace lets you to save changes that you make within DevTools to source code that's stored on your computer. Learn how to set up a workspace in your own projects.

Learn about all the features in the Network panel: inspect response and request bodies, overwrite headers, and more.

A hands-on tutorial to guide you through common tasks inside the Network panel.

Learn how to view and change a page's DOM.

Learn how to view and change a page's CSS.

Track changes to HTML, CSS, and JavaScript.

Log messages and run JavaScript.

Evaluate website performance.

Find memory issues that affect page performance, including memory leaks, and more.

Inspect, modify, and debug web apps, test cache, view storage, and more.

Inspect and modify animations.

Record, replay, measure user flows, and edit their steps.

Discover a collection of options that affect web content rendering.

Inspect and debug saved addresses.

Find and fix problems with your website.

Make sure that a page is fully protected by HTTPS.

View information and debug media players per browser tab.

Emulate device sensors.

Emulate authenticators.