Label Studio

About

Open-source data labeling platform. Label images, text, audio, and video for ML training. Multi-user with configurable interfaces.

• Multi-format labeling: bounding boxes, polygons, keypoints, text classification, NER, audio segmentation, video tracking
• Configurable UI: create custom labeling interfaces using a simple XML-like template syntax
• ML backend integration: connect models for pre-labeling, active learning, and automated quality control
• Export to 20+ formats: COCO, Pascal VOC, YOLO, JSON, CSV, ASR JSON, plain text, and more
• Role-based access control: assign annotators, reviewers, and admin roles per project with task management