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: 15,625
License: GPL-3.0
Last commit: 1 day ago

PythonActive

CVAT

Collaborative video and image annotation platform for computer vision

Data Labeling & Annotation

Stars: 15,409
License: MIT
Last commit: 1 day ago

PythonActive

Label Studio

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

Data Labeling & Annotation

Stars: 26,622
License: Apache-2.0
Last commit: 1 day ago

TypeScriptActive

doccano

Collaborative web‑based text annotation for fast ML dataset creation

Data Labeling & Annotation

Stars: 10,564
License: MIT
Last commit: 3 days ago

PythonActive

Argilla

Collaborative platform for building high-quality AI datasets

Data Labeling & Annotation

Stars: 4,886
License: Apache-2.0
Last commit: 5 days ago

PythonActive