What's New in DevTools (Microsoft Edge 103)

To check out the latest features of Microsoft Edge DevTools and the Microsoft Edge DevTools extension for Microsoft Visual Studio Code and Visual Studio, read these announcements.

To stay up to date and get the latest DevTools features, download an Insiders preview version of Microsoft Edge. Whether you're on Windows, Linux, or macOS, consider using Canary (or another preview channel) as your default development browser. The Beta, Dev, and Canary versions of Microsoft Edge run as separate apps, side-by-side with the stable, released version of Microsoft Edge. See Microsoft Edge Insider Channels.

For the latest announcements, follow the Microsoft Edge team on Twitter. To report a problem with DevTools or ask for a new feature, file an issue in the MicrosoftEdge/DevTools repo.

Video: What's new in DevTools 103

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New node types in the Memory tool

In Microsoft Edge 103, when taking a heap snapshot in the Memory tool, there are two new node types:

  • BigInt - Used to represent and manipulate values that are too large to be represented by the Number node type. See BigInt.
  • Object shape - Refers to the hidden classes and descriptor arrays that V8 (the JavaScript engine of Microsoft Edge) uses to understand and index the properties on objects. See HiddenClasses and DescriptorArrays in Fast properties in V8.

BigInt and Object Shape memory node types

For history, see Issue 12769: Improve categorization of objects in heap snapshots.

See also:

  • Constructor entries in Record heap snapshots using the Memory tool ("Heap snapshot" profiling type).

Launch the browser from an HTML file and use the Application tool within Visual Studio Code

To make it easier to start a new embedded instance of Microsoft Edge from within Visual Studio Code, when you right-click an HTML file in the Explorer, there's now an Open with Edge submenu that has the commands Open Browser and Open Browser with DevTools:

Right-click an HTML file to open a browser instance and the 'Edge DevTools' tab

You can now also use the Application tool to gain insights into the storage and service worker information of your project, without leaving Visual Studio Code:

The Application tool in the 'Edge DevTools' tab within Visual Studio Code

See also:

Bug fixes for Focus Mode UI

In the new Focus Mode DevTools UI, various bugs affecting controls and keyboard shortcuts for DevTools have been resolved:

  • Improved behavior of collapsible panes such as Styles in the Elements tool.
  • Fixed some instances in which the name of an open tool wasn't visible.
  • Improved reliability of Quick View controls.
  • Improved behavior of opening DevTools by using keyboard shortcuts.
  • Fixed an issue with navigating to a specific line of code in the Sources tool by using keyboard shortcuts.
  • Restored the keyboard shortcut to open Search in the Quick View panel, which is Ctrl+Shift+F (Windows, Linux) or Command+Option+F (macOS):

The Search keyboard shortcut opens the Search tool in the Quick View panel

The 3D View tool responds better in narrow layouts

In previous versions of Microsoft Edge, the 3D View tool didn't display correctly in narrow layouts. The toolbar options were cut off when DevTools was narrow. In Microsoft Edge 103, this issue has been fixed. The toolbar options in 3D View now stack when the width of the DevTools window is decreased:

Responsive layout of toolbar in 3D View tool

See also:

Fix: The Close button for DevTools is now accessible in high contrast mode

In previous versions of Microsoft Edge, the Close button for DevTools didn't render correctly in high contrast mode. In Microsoft Edge 103, this issue has been fixed. The Close (Close icon) button for DevTools is displayed correctly in high contrast mode:

The Close DevTools (X) button in high contrast mode

See also:

Redesigned Welcome tool

In Microsoft Edge 103, the Welcome tool has a new, modern design with improved and expanded content. It's easier than ever to find documentation, videos, and information about new features and bug fixes.

  • In the Learn section, use the links to quickly jump to documentation for common tasks in DevTools.

  • In the What's New section, find out about the latest changes, new features, and bug fixes.

  • In both sections, learn about existing and new web development features through our new video series, Videos about web development with Microsoft Edge.

The redesigned Welcome tool

See also:

Announcements from the Chromium project

Microsoft Edge 103 also includes the following updates from the Chromium project: