About PreAnnotate
PreAnnotate is a tool designed to streamline the process of annotating 2D images directly on your device. Our user-friendly interface and robust features empower you to manage your image datasets efficiently while ensuring your data remains private.

Core Features
Everything you need for efficient image annotation
Secure and Private
All operations are performed locally on your device. Your images and annotations never leave your computer, ensuring complete privacy and security.
Intuitive Interface
Easily manage classes, annotations, and export/import your data in formats compatible with your machine learning workflows.
Modern Toolset
Benefit from advanced features like keyboard shortcuts, batch operations, and custom class management.
For Everyone
Whether you're a researcher, developer, or hobbyist, PreAnnotate caters to your image annotation needs without the complexity.
How PreAnnotate Works
Simple and efficient workflow for all your annotation needs
Upload Images
Import your images directly to your browser through drag-and-drop or file selection. All data remains local on your device.
Create Classes
Define the object classes you need to annotate. Each class is automatically assigned a unique color for easy identification.
Draw Annotations
Use our intuitive drawing tools to create bounding boxes around objects in your images and assign them to your defined classes.
Export Results
Export your annotations in YOLO format, ready to use in your machine learning projects and model training workflows.
Our Roadmap
Exciting features on the horizon
Auto-Annotation
Leverage pre-trained models to automatically generate annotations, significantly speeding up your workflow.
Train Models Live
Support for live training of models throug Preannotate on your local PC.
Multi-Format Support
Export and import annotations in various formats including COCO, Pascal VOC, and more.
Enhanced UI Customization
Customize your workspace with themes, layout options, and personalized shortcuts.
Ready to start annotating?
Try PreAnnotate now and experience efficient, private image annotation.
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