RectLabel free download for Mac


28 August 2019

Label images for bounding-box object detection.


RectLabel is an image-annotation tool to label images for bounding-box object detection.

  • 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

Note: While the software is classified as free, it offers in-App Purchases.

What's new in RectLabel

Version 2.91:
  • Added "Draw extra points to reduce glitching when high zoom" on the settings dialog. It looks that the problem happens when the long line is angled and high zoom. For boxes and cubic bezier, it does not happen. To prevent the glitching, you can add points between polygon points. Because adding points reduces the line length.

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