tzutalin (GitHub open-source maintainer / author of labelImg)

tzutalin is the GitHub username of an individual open-source developer and maintainer best known for creating and maintaining labelImg, a widely used graphical image annotation tool for computer vision datasets. The project is developed in Python and Qt and provides a simple GUI for drawing bounding boxes and saving annotations in common formats (Pascal VOC, YOLO, etc.). Prebuilt Windows executables (labelimg.exe) and community-supported builds have made the tool popular for researchers and practitioners preparing training data for object detection models.

There is no formal company behind the name; tzutalin represents an open-source project lead and a community of contributors who maintain the repository and its forks. The code and releases are hosted on GitHub, and development activity, issue tracking, and contributions occur there. The project’s history and ongoing maintenance are best followed via the GitHub repository and its release notes rather than a corporate website or socia...