RectLabel

An image annotation tool for object detection and segmentation.

Download on the App Store
Draw bounding boxes and read/write in YOLO text format Draw oriented bounding boxes in aerial images Draw polygons, cubic bezier curves, line segments, and points Editing points to fit the shape Export indexed color mask image and grayscale mask images Draw keypoints with a skeleton Export keypoints and pixels objects to COCO JSON file Draw pixels with brushes and superpixels Draw pixels with brushes and superpixels Settings for objects, attributes, hotkeys, and labeling fast Customize the label dialog to combine with attributes 1-click buttons speed up selecting the object name Auto-suggest works for more than 5000 object names Search object/attribute names and image names Automatic labeling using Core ML models Video to image frames, augment images, etc. Video to image frames, augment images, etc.

Key features

Draw bounding boxes and read/write in YOLO text format

Draw oriented bounding boxes in aerial images

Draw polygons, cubic bezier curves, line segments, and points

Draw keypoints with a skeleton

Draw pixels with brushes and superpixels

Read/write in PASCAL VOC xml format

Export to CreateML object detection and image classification formats

Export to COCO JSON, YOLO, DOTA, and CSV formats

Export indexed color mask image and grayscale mask images

Settings for objects, attributes, hotkeys, and labeling fast

Customize the label dialog to combine with attributes

1-click buttons speed up selecting the object name

Auto-suggest works for more than 5000 object names

Search object/attribute names and image names

Automatic labeling using Core ML models

Video to image frames, augment images, etc.

Support English, Chinese, Korean, and 11 other languages.

Privacy policy

We do not collect any images, annotations, and settings data.

Terms of Use

Each device used serially or collectively by multiple users requires a separate license

Report issues

Post the problem to our Github issues page.

Have questions?

Send an email to support@rectlabel.com

Thank you.