Annotate Images Locally, Privately
PreAnnotate is a lightweight web application for annotating 2D images directly on your device. Your data never leaves your computer.
Why Choose PreAnnotate?
A powerful annotation tool designed with privacy and efficiency in mind
Privacy First
Your data never leaves your device. Enjoy complete privacy with no server uploads or tracking.
Intuitive Interface
Effortlessly move through your images with responsive controls and keyboard shortcuts.
Versatile Formats
Easily import and export annotations in YOLO format, perfect for machine learning projects.
Highly Customizable
Manage classes, annotations, and workflows seamlessly to fit your specific needs.
How It Works
Simple, efficient, and secure image annotation in just a few steps
Upload Images
Upload your images directly to your browser. All data stays local on your device.
Create Annotations
Add custom classes and draw bounding boxes around objects in your images.
Export Results
Export your annotations in YOLO format for use in machine learning projects.