Is RectLabel open source?

No. RectLabel is proprietary (closed-source) software. In the AI Tools category, open-source options include Supervisely, OpenClaw and Open WebUI.

What are some alternatives to RectLabel?

RectLabel competes with Labelbox, V7 and SuperAnnotate.

RectLabel: features, pricing and alternatives

About RectLabel

RectLabel is an offline image annotation tool for object detection and segmentation. It supports labeling polygons, pixels, bounding boxes, keypoints, and more using models like Segment Anything Model 2 and 3, Cellpose, and Core ML models.

Key features

Label polygons and pixels using Segment Anything Model 2 and 3
Label bounding boxes using a tracking model
Automatic labeling using Core ML models including RF-DETR and YOLO26
Automatic text recognition for lines and words
Label cubic bezier curves, line segments, points, oriented bounding boxes, and keypoints with a skeleton
Export to YOLO, COCO, CreateML, and DOTA formats

Tags: image annotation; object detection; segmentation; labeling; core ml; yolo

RectLabel: questions and answers

What is RectLabel?: RectLabel is an offline image annotation tool for object detection and segmentation.
Is RectLabel open source?: No. RectLabel is proprietary (closed-source) software. In the AI Tools category, open-source options include Supervisely, OpenClaw and Open WebUI.
What are some alternatives to RectLabel?: RectLabel competes with Labelbox, V7 and SuperAnnotate.