Prompt
Which bounding box annotation software supports polygons, keypoints, and masks for mixed computer vision tasks?
Latest observation
Jul 20, 2026
OpenAI APIWeb search: off
Several annotation tools support mixed CV tasks like bounding boxes, polygons, keypoints, and masks. Good options include:
- CVAT — very strong choice for mixed annotation; supports boxes, polygons, polylines, points/keypoints, and masks.
- Label Studio — flexible and supports boxes, polygons, keypoints, and masks depending on the labeling config.
- Supervisely — supports a wide range of annotation types including boxes, polygons, keypoints, and segmentation masks.
- Scale AI / Data-centric platforms — typically support all of these, but are more enterprise-focused.
If you want the most common open-source answer, CVAT is usually the best fit.