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Interface Builder

Found 3 file extension associations related to Interface Builder and 3 file formats developed specifically for use with Interface Builder.

Platform, operating system:  Apple macOS / Mac OS X icon Apple macOS / Mac OS X

Go to: Interface Builder description

Developer: Apple, Inc.

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Interface Builder picture

Apple, Inc. logoInterface Builder

Developer / company: Apple

Interface Builder is a software development program for Mac OS X and part of Xcode. Interface Builder is an application for designing and testing user interfaces. Developers can use Interface Builder to create user interfaces that follow the Mac OS X human-interface guidelines by dragging user-interface elements from a palette of predefined controls and dropping them into the window or view they are configuring. Interface Builder works closely with Xcode to provide a development experience that facilitates the concurrent but specialized development of an application's user interface and business logic.

Interface Builder is Apple's graphical editor for designing user interface components for both Carbon and Cocoa applications. Interface Builder makes creating an application's user interface easier by allowing developers to use its graphical editing environment to manage virtually every aspect of creating a well designed user interface that adheres to the Aqua user interface guidelines.

Key Interface Builder Features

  • Helps you design Aqua-compliant user interfaces with the "Snap to Aqua Guidelines" feature
  • Creates both Cocoa nibs and Carbon nibs
  • Simplifies usage of CarbonEvents by allowing you to associate command/control IDs with your controls/menu items directly in Interface Builder
  • A key part of the Cocoa application development process - lets you subclass, connect objects, and establish default values, helping your application require less code
  • "Test Interface" mode lets you try your UI without writing any code
  • Spell Checks your UI text as you go

Interface Builder icon

Interface Builder icon png 128px
Interface Builder icon
size: 128px x 128px (.png with transparency)

Interface Builder pictureInterface Builder works with the following file extensions:

Note: You can click on any file extension link from the list below, to view its detailed information. The list of extensions used or otherwise associated with the application may not be complete, because many common file extensions on our website, such as jpg (pictures) or txt (text files), can be opened by a large number of applications, or are too general file format. However most, if not all directly associated file extensions should be listed with its appropriate program. Although its likely, that some file extensions may be missing from the list of associated file extensions with the application, yet they can be opened, be part of, or otherwise be associated with the program.

Interface Builder default file extension associations

nib file icon.nibproj file icon.projxib file icon.xib

Comparison table of actions that Interface Builder can perform with each of its associated file type beta

This table might not contain all possible associated or supported file types or may contain incorrect data.
If you need more information please contact the developers of Interface Builder (Apple, Inc.), or check out their product website.

File type \ Action
























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