X-MLAnnotation
Image annotation for Create ML
Only for Mac
Free
Mac
Annotate images faster with hotkeys, data augmentation, flexible export proportions, and Create ML–ready datasets.
X-MLAnnotation is a powerful macOS application for image annotation in machine learning and computer vision workflows.
It provides a clean, efficient environment to create and manage annotation projects, define object classes, and prepare datasets optimized for Apple Create ML.
Designed for developers, researchers, and engineers, X-MLAnnotation focuses on speed, precision, and full control over the annotation process.
Key Features
Project Management
• Create new annotation projects by selecting image folders
• Open and continue working on existing projects
Image Import and Organization
• Import multiple folders with images
• Navigate easily between folders and image groups
• Preview images with annotation counters
Annotation and Classification
• Create custom object classes with unique colors
• Draw bounding boxes using the mouse
• Resize and reposition annotations via corner anchor points
• Rename or delete classes via context menu
• Adjust class colors for better visual separation
Advanced Tools
• Export for Create ML with automatic dataset splitting:
• Default: 70% training, 15% testing, 15% validation
• Fully configurable proportions in Settings
• Export includes images and Create ML–compatible JSON files
• Rotate output images (90°, 180°, 270°) for data augmentation
• Remove annotations from individual images
Productivity Features
• Keyboard shortcuts for fast navigation:
• Q — previous image
• W — next image
• Activity log to track actions and changes
Multi-Language Support
• English
• German
• Russian
X-MLAnnotation helps you build high-quality datasets efficiently while keeping full control over your annotation workflow.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Denis Blumenstein, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Denis Blumenstein
- Size
- 1 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 14.6 or later.
- Mac
Requires macOS 14.6 or later.
- Mac
- Languages
English and 2 more
- English, German, Russian
- Age Rating
9+
- 9+
- Copyright
- © 2025 Denis Blumenstein