Annotate Images Locally, Privately
PreAnnotate is a powerful, lightweight web application for annotating 2D images directly on your device. Enjoy complete privacy with no data uploads, ensuring your annotations remain secure.
Start annotating instantly—no sign-up required.
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Why Choose PreAnnotate?
Privacy First
Your data never leaves your device. Enjoy complete privacy with no server uploads.
Intuitive Navigation
Effortlessly move through your images with responsive controls and keyboard shortcuts.
Versatile Formats
Easily import and export annotations in YOLOv5 format, perfect for diverse machine learning projects.
Highly Customizable
Manage classes, annotations, and workflows seamlessly to fit your specific needs.