Adobe Photoshop Lightroom library file
File type: Various data file
The .aglib file extension is used by Adobe Photoshop Lightroom for its library files.
An .aglib file stores information about a user's photos, preferences, and index data. It is a library database rather than an image file.
File type category:
Various data file
Date updated: October 2, 2026
The .aglib file extension is associated with Adobe Photoshop Lightroom, Adobe's digital photo editing and management software for Microsoft Windows and Apple macOS.
The file contains library information used to organize and manage photos, including photo-related data, user preferences, and index data. The image files themselves are stored separately.
Open an .aglib file from within a compatible version of Adobe Photoshop Lightroom. On Windows, use the Windows version of Lightroom; on macOS, use the Mac version.
Open the .aglib file in a compatible version of Adobe Photoshop Lightroom, then use the program's library-management and export functions to preserve the available photo information or export the photos to standard image formats.
Software apps that create aglib files:
Microsoft Windows
Apple macOS / Mac OS X
Software applications that handle other tasks involving aglib files:
Microsoft Windows
Apple macOS / Mac OS X
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