Imblab - free opensource fast image annotation tool

imglab is a web based opensource tool which lets you label an image with feature points. You can easily drag and adjust previously labelled data. It saves data in निम्न (Nimn)[1] format. Hence the size of project file is very small and can be shared on email. It supports following formats to import/export data;

dlib XML
dlib pts
Pascal VOC
COCO
Tenserflow (in plan)

ImgLab is platform independent, runs directly from browser, and no prerequisite is needed. It requires very less CPU and memory. It is free and opensource.

You can annotate images for categories, labels, attributes, and tags. More features will be supported in future. Auto suggestion and use of hot keys make it fast.