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DevToolsChrome 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.
DevTools supports a wide range of common web development tasks. Jump ahead on this page and explore some of DevTools' key features. Don't know where to start or your first time using DevTools?
Watch an intro to DevTools.
Get AI assistanceConsole insights and AI assistance help you debug and fix JavaScript errors, performance, and styling more efficiently.
Inspect resourcesLearn how to inspect resources loaded by your page and edit them from your browser.
Analyze networkAnalyze and overwrite network requests and responses on the fly.
AI assistance & console insights Get startedLet Gemini help you analyze and improve your website's styling, network, sources, and performance.
Get inspiredExplore use cases for AI assistance in Chrome DevTools and learn how it can support your debugging workflow across styling, performance, and more.
Explore our monthly video series explaining how to use DevTools to solve common web development problems.
Record and analyze a performance traceLearn how to record a performance trace in DevTools and analyze it to identify and fix performance issues.
Monitor live Core Web VitalsDebug LCP issues and use CrUX data to see if you're debugging a similar experience to your users
Caching demystifiedDive into the different types of browser cache and how to inspect and manage them in Chrome DevTools!
Freeze screen & inspect disappearing elementsTrying to inspect an element, and “poof” it's gone? It's like your code is playing hide-and-seek with you!
Get performance insightsA wide range of tools to help you measure and optimize different aspects of your runtime performance: the Performance panel, Lighthouse, and more.
Performance tool overviewLearn about all the features in the Performance panel: how to record a performance trace, how to view and analyze the trace, and more.
Learn about the new performance insights, the power of Lighthouse directly in the DevTools Performance panel.
Inspect and edit resources Feature referenceLearn about all the features in the Sources panel: how to view and edit files, debug JavaScript, and set up a workspace.
Set up a workspaceWorkspace 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.
Analyze network activity Network panelLearn about all the features in the Network panel: inspect response and request bodies, overwrite headers, and more.
Discover all the other features and capabilities in DevTools.
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UTF-8
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