To use Chrome's developer tools, select Menu (three dots) > More tools > Developer tools. Shortcut: Press Ctrl + U (Windows PC) or Command + Option + U (Mac). Right-click on the web page and choose View Page Source.
![]() They provide developers deeper access into their web applications and the browser. Down arrow to highlight + Shift + Delete.The Google Chrome Developer Tools, also known as Chrome DevTools, are web authoring and debugging tools built right into the browser. Remove predictions from your address bar. Search from anywhere on the page. Ctrl + l or Alt + d or F6. Chrome View Source Full List OfOpen from browser menuYou can open Chrome DevTools from the Chrome menu. Opening Chrome DevToolsThere are a few ways to open Chrome DevTools, which means you can use the method that works best for you. You can then use the settings panel in developer tools to toggle individual experiments.We will be mentioning some of the Chrome DevTools keyboard shortcuts below, but you can see a full list of them on the Google Developer website. Chrome Canary can be run side by side with Chrome so you can check any issues that may arise.You can enhance your development by going to chrome://flags and enabling the Developer Tools experiments feature. If you don’t find it there, hit Cmd+Shift+C (on Mac) or Ctrl+Shift+C (on Windows) to bring up the Developer Tools (Inspect Element) panel.To use the latest version of the developer tools, you may want to use Chrome Canary, which is the experimental version of Chrome that is updated nightly. Pretty printDid you know Chrome DevTools has a pretty print featured built in? You can easily change the formatting of your minimized code by clicking on. Quick file switchingYou can easily access any file within a current project or web page by pressing Cmd + P ( Ctrl + P) when Chrome DevTools is open and searching for the name. It also makes for a good crash course on the tools if you haven't used them before. Open with keyboard shortcutsYou can also use the following shortcuts:Below are just a few of the hundreds of things you can do with Chrome DevTools. Right click on any page element and then click Inspect (or Inspect Element). Open by right clickingYou can also open Chrome DevTools from the right click menu. Edit CSS propertyJust like with editing HTML, you can also change CSS in Chrome DevTools and preview what the result will look like. Any changes will show up in your browser as if the change had actually been made to the source code. The closing tags are automatically updated for you. The page will then run right to that breakpoint. You can set breakpoints in Chrome DevTools by clicking on the line number you want to break at then press Cmd + R ( Ctrl + R) to refresh the page. JavaScript breakpointsWhen debugging JavaScript it is sometimes useful to set breakpoints. Search source codeYou can quickly search all of your source code by pressing Cmd + Opt + F ( Ctrl + Shift + F). Simply select the element you want to edit and under the styles panel you can add/change any CSS property you want. What n64 emulator works on mac 2011Clear cookiesYou can also easily clear cookies from the Chrome DevTools. The dock position can be changed by pressing Cmd + Shift + D ( Ctrl + Shift + D) or through the menu. You can either undock into a separate window, or dock it on the left, bottom, or right side of the browser. Dock positionYou can also change the Chrome DevTools dock position. Multiple cursorsEver have multiple lines you need to add something to? You can easily add multiple cursors by pressing Cmd + Click ( Ctrl + Click) and entering information on multiple lines at the same time. In the example below we entered :375:18 to go to line 375, column 18. ![]() Toggle element stateHave you ever tried to figure out where a hidden style is coming from, say the :hover selector? In Firefox Developer Tools you can see this when selecting the element, but not in Chrome DevTools. Change color formatYou can toggle between RGBA, HSL, and hexadecimal formatting by pressing Shift + Click on the color block. There is also a color picker that can be used to pick out colors from a web page directly. You can access them by simply clicking on the color block in the style panel. There is no need to use a free online converter as it is already built into Chrome DevTools. Copy image as data URI (base64 encoded)You can save any image from a webpage out as a data URI or rather base64 encoded. This allows you to force an element state, like :hover, so that you can then use the styles panel to see the properties. Monitor performanceThe performance feature allows you to easily see what is costing you the most time and resources. After the page has refreshed it will show you how your page rendered from start to finish. This can be a great way to see how your font is rendering and if you're dealing with issues such as FOIT or FOUT.In the Network panel click on the settings icon, check the Capture screenshots option, and then press Cmd + R ( Ctrl + R) to refresh the page. DOMContentLoadedWe have a great article on blocking the DOM and how to fix it. You can then click Stop and evaluate the results. Record the amount of time that you want to be monitored. ![]() This is great for for debugging HTTPS migrations and quickly fixing mixed content warnings.In the Security panel press Cmd + R ( Ctrl + R) to refresh the page. Security checkThe Security panel can be very useful to check if the SSL/TLS certificate is valid, whether or not the connection is secure, and if all resources are served securely. And add the profile with your specifications. In the Network Throttling Profiles click Add custom profile. This can be beneficial if you are wanting to test more accurately at a specific speed.In the Network panel click the Throttle drop down and then Add. Read more about AMP validation errors. It will display if it successfully validated below. For Google to index the AMP version of your page you must make sure it is validated.In the Console panel append #development=1 to the AMP version in your browser's address bar and then press Cmd + R ( Ctrl + R) to refresh the page. Validating Google AMP HTMLGoogle AMP is an open source initiative to speed up the web using lightweight HTML pages.
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