Styles & the DOM
Editing Styles and the DOM
Use DevTools to do real-time editing of your web page. Edit the DOM directly or the CSS styles and see your changes rendered immediately.
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Use DevTools to do real-time editing of your web page. Edit the DOM directly or the CSS styles and see your changes rendered immediately.
You can now access your Android device directly in DevTools on your dev machine. Just plug it in over USB and you can view and debug!
A starting place if you haven't used DevTools before - this page will tell you everything you need to get started with the Chrome DevTools, from how to access the tools to a brief explanation of what the various menus and panels are used for.
Use the Javascript console in DevTools to debug your Javascript code and log diagnostics, or you can also just use it as a shell to try out Javascript commands and interact with pages.
Need to debug for a device but don't have the device on hand? DevTools can emulate many devices -- screen dimensions, touch events, geolocation, and user spoofing.
Save more time in your development workflow -- here is a page full of keyboard shortcuts that will make things quicker when you are using DevTools.
Does your page use too much memory or have a memory leak? Find out how to get and analyze a heap profile.
Is your site running slow? Analyze times for events, scripting, rendering, and painting using the Timeline.
Find out how much CPU is being spent on your various Javascript functions with the Javascript CPU Profiler.
Need to debug your Javascript? DevTools has a suite of tools to let you step through code, set breakpoints, handle exceptions, and so on.
Do you find that DevTools saves you some time and you wonder how to save more? This page guides you through some ways to make your workflow more efficient, both in editing files and styles but also with your Javascript and how you use the DevTools in general.
Do you hate switching between DevTools and your external editor to make your changes persist to disk? Workspaces allows you to map pages to local resources and edit and save them right inside DevTools.
Javascript functions you can call within the console or within your programs to log various results to the console.
Functions that you can call in the console for performing common tasks within the DevTools.
Various tips and tricks on things within the DevTools.
Let's learn some more about what you can control in the Settings panel.
Are you using a CSS preprocessor such as Sass, Less, or Stylus? You can live-edit your preprocessor source files in DevTools as easily as editing straight CSS, and enable CSS source maps.
Although we encourage you to use the new Screencast for debugging your Android devices, we do have Javascript runtime bindings for allowing DevTools to interact with mobile Chrome devices.
Write new extensions and protocol clients to make new features for Chrome DevTools!
Videos to get you started learning about Chrome DevTools.
Explore and master the DevTools with our free "discover DevTools" courses.
Summit a bug or a feature request on DevTools, and help the community get better.
Looking to use the DevTools to debug Chrome extensions? Watch our videos for more info.