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          Developer Tools

          Descriptions of the options found under the Developer Tools file menu.

          Windows
          MacOS
          Linux
          On this page

          DeveloperTools2.png

          The Developer Tools provide you with several information gathering tools such as debuggers, analyzers, profilers, and more. Using these tools can help in your optimization efforts or to diagnose aspects of your project, code or content that may not be performing as expected.

          You can access the Developer Tools from the File Menu under Window and Developer Tools.

          OpenDevTools.png

          The Developer Tools are broken up into three categories:

          • Debug - which houses debugging tools.

          • Log - which contains the Message and Output Log windows.

          • Miscellaneous - which includes loggers, mangers, profiles and others.

          See the table below for more information and links to additional pages.

          Tools Available

          Option

          Description

          Blueprint Debugger

          Opens the Blueprint Debugger . Allows you to step through any graph of a Blueprint or Level Blueprint through the use of Breakpoints.

          Collision Analyzer

          Opens the Collision Analyzer tool.

          Debug Tools

          Show the Debug Tools panel, that contains an assortment of functions for common debug tasks.

          Message Log

          Opens the Message Log. This is where errors or warnings from the Editor will go.

          Output Log

          Opens the Output Log. If you are debugging something using Print it will appear here.

          Visual Logger

          Opens the Visual Logger . A tool to help you debug and fine-tune AI in your projects.

          Class Viewer

          Opens the Class Viewer . Displays a hierarchical list of classes used by the editor.

          Device Manager

          Opens the Device Manager.

          Device Profiles

          Opens the Device Profiles tool. Allows you to manage device-specific configurations inside your project.

          Merge Actors

          Opens the Merge Actors tool.

          Pixel Inspector

          Opens the Pixel Inspector . Provides information about a specific Pixel from a viewport.

          Session Frontend

          Opens the Session Frontend tool. Multipurpose tool used for daily game development (prepping builds, deployment, launching).

          Widget Reflector

          Opens the Widget Reflector.

          Select Skin
          Light
          Dark

          Welcome to the new Unreal Engine 4 Documentation site!

          We're working on lots of new features including a feedback system so you can tell us how we are doing. It's not quite ready for use in the wild yet, so head over to the Documentation Feedback forum to tell us about this page or call out any issues you are encountering in the meantime.

          We'll be sure to let you know when the new system is up and running.

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