Best Open-source Data Labeling & Annotation tools

Explore curated open-source tools in the Data Labeling & Annotation category. Compare technologies, see alternatives, and find the right solution for your workflow.

5 projects · Page 1 of 1

Labelme

Intuitive Python tool for polygonal image and video annotation

Data Labeling & Annotation

Stars: 16,059
License: GPL-3.0
Last commit: 5 hours ago

PythonActive

CVAT

Collaborative video and image annotation platform for computer vision

Data Labeling & Annotation

Stars: 16,351
License: MIT
Last commit: 7 hours ago

PythonActive

Label Studio

Flexible, multi-type data labeling platform for modern ML pipelines.

Data Labeling & Annotation

Stars: 27,898
License: Apache-2.0
Last commit: 14 hours ago

TypeScriptActive

Argilla

Collaborative platform for building high-quality AI datasets

Data Labeling & Annotation

Stars: 5,042
License: Apache-2.0
Last commit: 1 day ago

PythonActive

doccano

Collaborative web‑based text annotation for fast ML dataset creation

Data Labeling & Annotation

Stars: 10,710
License: MIT
Last commit: 3 months ago

PythonStable