Watch Folders
What Are Watch Folders?#
Watch folders are directories that Tag-AI scans for images to process and tag. These folders (and their
subfolders) are the source of all images in your Tag-AI database.
When you run a scan, Tag-AI will:
Recursively search through all watch folders and their subfolders
Identify all supported image files
Process new or changed images
Skip images that have already been processed
Managing Watch Folders#
Viewing Current Watch Folders#
To see your current watch folders:
Open the Configuration Editor (Actions → Edit Config)
The watch folders are listed at the top of the configuration
Adding Watch Folders#
To add a new watch folder:
Open the Configuration Editor
Click the + button in the Folders section
Enter the folder path directly or click Find... to browse
Click Save to confirm changes
Removing Watch Folders#
To remove a watch folder:
Open the Configuration Editor
Click the Remove button next to the folder you want to remove
Click Save to confirm changes
Removing a watch folder does not delete any data from the Tag-AI database. Images from that folder will
remain in the database until you use the Purge tool.
Folder Structure Recommendations#
Tag-AI works with any folder structure, but certain organizations can improve efficiency:
Hierarchical Organization#
A hierarchical structure with logical subfolders works well:
Photos/
├── 2023/
│ ├── January/
│ ├── February/
│ └── ...
├── 2024/
│ ├── January/
│ └── ...
└── Events/
├── Vacation2023/
└── Wedding/
Copy
Multiple Root Folders#
You can set multiple separate watch folders for different collections:
C:/Users/username/Pictures (personal photos)
D:/Professional/ClientPhotos (work photos)
E:/Archive/OldPhotos (archived collections)
Copy
Folder Size#
The number of images in your watch folders affects performance:
Small libraries (under 10,000 images): Excellent performance with minimal setup
Medium libraries (10,000-50,000 images): Good performance; initial scan may take hours
Large libraries (over 50,000 images): May require optimization; initial scan could take
a day or more
Subfolder Depth#
Very deep folder hierarchies may slow down scanning:
1-5 levels deep: Optimal performance
6-10 levels deep: Acceptable but may slow scanning
10+ levels deep: May cause significant slowdown during scanning
Excluded Files#
Even in watch folders, Tag-AI skips certain files:
Automatically Excluded File Types#
.xmp - Metadata sidecar files
.txt - Text files
.csv - Spreadsheet files
.json - Data files
.log - Log files
._* - macOS resource files
.DS_Store - macOS system files
Thumbs.db - Windows thumbnail cache
Filtering by File Type#
Tag-AI only processes files with these extensions:
.jpg, .jpeg
.png
.gif
.tiff, .tif
.bmp
.heif, .heic
.nef (Nikon)
.cr2, .cr3 (Canon)
.arw (Sony)
.dng (Adobe)
.raf (Fujifilm)
.raw, .3fr, .sr2, .kdc, .pef, .mos (various)
Remote and Network Folders#
Tag-AI can work with network and remote folders, but with some limitations:
Mapped Network Drives#
Supported on all platforms
Performance depends on network speed
Use format: Z:/Photos
(Windows) or /Volumes/Photos
(macOS)
UNC Paths#
Supported on Windows
Use format: \\server\share\photos
May require proper network permissions
Cloud Storage#
Cloud storage solutions with local sync folders work well:
Dropbox, Google Drive, OneDrive, etc. with local sync
Use the local sync folder as a watch folder
Example: C:\Users\username\OneDrive\Pictures
Direct cloud URLs without local sync are NOT supported. Files must be accessible through the local
filesystem.
Best Practices#
Organization Tips#
Start small: Begin with a subset of your collection before adding all folders
Logical grouping: Group related photos in meaningful subfolders
Avoid redundancy: Don't add subfolders of existing watch folders
Use exclusions: Keep non-photo files in separate directories
Balance folder count: Use fewer, larger folders rather than many small ones
Local storage: Keep frequently accessed collections on fast, local storage
Regular maintenance: Use the Purge tool to remove missing files from the database
Stay organized: Don't reorganize folders frequently; this can cause duplicate entries