Download of RectLabel 2023.07.05 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software is included in Design & Photo Tools. This free software for Mac OS X is a product of RectLabel. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
An image annotation tool to label images for bounding box object detection.
Key features:
Create a label dialog from JSON settings
Layer order for overlapped boxes
Zoom in on a point
Quick zoom to existing boxes
Draw a box including outside the image
Smart guides for creating and transforming boxes
Support the PASCAL VOC format
You may want to check out more Mac applications, such as Vectorworks 2010 Viewer, Polaris or Send Photo Pro by ZoomFoot, which might be related to RectLabel.