File System Library – Unreal Engine
File System Library is cross platform blueprint library that allows you to easily interact with files and directories. It includes basic features like copy, move and delete for both files and directories. It also allows you to use your operating system’s default dialog windows to open or save files from any blueprint class. This plugin works both in editor and packaged builds (dev, debug and shipping)!Features:
Open/Save File Dialog: Prompt the user to save or select a file on his computer.
File Operations: Copy, move, delete and rename any files.
Folder Operations: Copy, move, delete and rename any folder/directories.
File String I/O: Load and create files on the go from strings.
MAC (Tested on Mac OS 10.7 BigSur):
If you encounter issues when packaging, move the plugin from /Users/Shared/Epic Games/UE_4.XX/Engine/Plugins/Marketplace/FileSystemLibrary to [Project Name]/Plugins/FileSystemLibrary.
Technical details:
Version 6 (16/06/2025):
– Added OpenDialogFolderMultiSelect function to open a dialog to select multiple foldersVersion 5 (19/09/2022):
– CreateProc() now returns a Process ID used to track the process.
– Added 2 new functions: IsProcessRunning() & GetProcessName()
Version 4 (07/09/20):
– All dialogs now work in-editor (including Editor Utility Widgets, and Blutilities).
– Node update, OpenDirectory(). Opens Explorer or Finder at the specified path.
Number of Blueprints: 1
Number of C++ Classes: 4
Supported Development Platforms: All Desktops (Win, MacOS)
Supported Target Build Platforms: All Desktops (Win, MacOS)
Supported Unreal Engine Versions: 4.23 – 4.27 and 5.0 – 5.7
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