Opening Developer Tools with a keyboard shortcut

The fastest way to open Chrome's Developer Tools is to press F12 on Windows or Command + Option + I on Mac. A panel will appear on the right side of your screen (or at the bottom, depending on your settings) showing the code behind the webpage you are viewing.

If F12 does not work on your keyboard — some laptops reassign this key — you can use Ctrl + Shift + I on Windows or Command + Shift + I on Mac instead. Both shortcuts do the same thing and open to the same place.

The panel that opens shows several tabs across the top: Elements (or Inspector on newer versions), Console, Sources, Network, and others. You are now looking at the actual HTML, CSS, and JavaScript that make the page work.

Opening Developer Tools through the Chrome menu

If you prefer using the menu, click the three vertical dots in the top right corner of Chrome (next to your profile picture). A dropdown menu will appear.

Hover over or click More Tools, and a submenu will expand. Select Developer Tools from that submenu. This opens the same panel as the keyboard shortcut, just with more steps.

This method is useful if you forget the keyboard shortcut or if your keyboard does not respond to it the way you expect.

Key Takeaways

  • Press F12 (Windows) or Command + Option + I (Mac) to open Developer Tools when ready.
  • If F12 does not work, try Ctrl + Shift + I (Windows) or Command + Shift + I (Mac) instead.
  • You can also open Developer Tools through Chrome's menu: three dots, then More Tools, then Developer Tools.
  • The panel shows the Elements tab by default, which displays the HTML code of the webpage you are viewing.
  • Developer Tools stay open until you close them, and you can move the panel to the right, bottom, or a separate window.

Understanding what you see when Developer Tools opens

When Developer Tools first opens, you are looking at the Elements tab (called Inspector in newer Chrome versions). This tab shows the HTML structure of the webpage — the actual code that tells your browser what text, images, and buttons to display and where to put them.

On the left side of the Elements tab, you see the HTML code in a tree structure. On the right side, you see the CSS — the styling rules that control colors, sizes, spacing, and fonts. When you click on any element in the tree, the CSS that applies to it appears on the right.

The other tabs — Console, Sources, Network, process — show different kinds of information. The Console is where error messages appear and where you can type commands. The Network tab shows every file the page downloaded. You do not need to understand all of these right now; most people start with the Elements tab.

Moving Developer Tools to a different position

By default, Developer Tools opens in a panel on the right side of your screen. If you want more horizontal space, you can move it to the bottom, or even pop it into its own separate window.

Look for three vertical dots in the top right corner of the Developer Tools panel itself (not the Chrome menu — this is a smaller menu inside the tools). Click it, and you will see Dock side options. Choose Bottom to move the panel below the webpage, Right to keep it on the right, or Undock into separate window to open it in its own window on a second monitor.

Moving the tools to the bottom gives you more width to see the webpage, which is often helpful when you are inspecting how a page responds to different screen sizes.

Closing Developer Tools

Press F12 again (or whichever shortcut you used to open it) to close Developer Tools. The panel will disappear, and you will see the full webpage again.

You can also click the X button in the top right corner of the Developer Tools panel, or right-click anywhere in the panel and select Close DevTools. All three methods close it completely.

Inspecting a specific element on a webpage

Developer Tools has a special feature that lets you point at something on the page and see its code when ready. Look for a small square icon with an arrow in the top left corner of the Developer Tools panel — this is the Inspect Element button.

Click that button, then move your mouse over any part of the webpage. As you hover, that element will highlight in blue, and its HTML code will appear in the Elements tab. Click on the element you want to inspect, and the panel will lock onto it so you can see all its code and styling.

This is the most common way people use Developer Tools when they are starting out — they want to understand how a specific button, image, or text block is built.

Frequently Asked Questions

Why does my F12 key open something other than Developer Tools?

Some laptops and keyboards reassign F12 to control volume, brightness, or other functions. Try Ctrl + Shift + I (Windows) or Command + Shift + I (Mac) instead. If that does not work, use the Chrome menu method: three dots, More Tools, Developer Tools.

Can I use Developer Tools on websites I do not own?

Yes. Developer Tools shows only the code that your browser downloaded to display the page — the same code any visitor can see. You cannot change anything on the actual website, and the website owner cannot see that you opened the tools. You are just looking at what is already public.

What is the difference between the Elements tab and the Console tab?

The Elements tab shows the HTML and CSS structure of the page — what the page looks like and how it is styled. The Console tab shows error messages and lets you type commands to test code. Most beginners start with Elements to understand how a page is built.

Will opening Developer Tools slow down my browser?

Developer Tools uses a small amount of memory while it is open, but it will not noticeably slow down your browsing. Close it when you are done if you want to free up that memory, but leaving it open for a while will not cause problems.

Can I edit the code I see in Developer Tools and change the website?

You can edit the code in Developer Tools and see the changes on your screen, but those changes are temporary and only on your computer. When you refresh the page, the original code comes back. You cannot permanently change a website you do not own using Developer Tools.