Welcome to the documentation of Computer Vision Annotation Tool.

CVAT is a free, online, interactive video and image annotation tool for computer vision. It is being developed and used by to annotate millions of objects with different properties. Many UI and UX decisions are based on feedbacks from professional data annotation team. Try it online

Our documentation provides information for annotators, AI researchers, system administrators, and developers. The documentation is divided into three sections, and each section is divided into subsections basic and advanced.

Getting started

Basic information and sections needed for a quick start.


Answers to frequently asked questions.

GitHub Repository

Computer Vision Annotation Tool GitHub repository.


This section contains documents for CVAT simple and advanced users.


This section contains documents for system administrators.


This section contains documents for developers.