I'm using CVAT for the annotation purpose. It's very user friendly compare than other tools. I like Bounding box, polygon, segmentation and keypoints parts with CVAT most. It's takes very little time and convenient to use. Also price is cheap compare than other tools. Also it's have ai feature to run auto annotation and it works perfectly. It's very good performance. I can add my labelers to this platform very easily and their support team is very helpful. Yes, I can export and import data with other tools with CVAT perfectly. Usually, my client give me the COCO or YOLO annotations format after that I import it on CVAT. And it works smoothly. Review collected by and hosted on G2.com.

It's quite slow when load too many objects in one frame Review collected by and hosted on G2.com.