Label Studio

Label Studio

Verified

Open-source data labeling tool for creating AI training datasets.

About Label Studio

"Label data faster with ML-assisted tools"

Label Studio is the leading open-source data labeling platform for creating training datasets for machine learning models, supporting text, images, audio, video, and time series annotation with a flexible labeling interface. It provides pre-built templates for common ML tasks — object detection, NER, sentiment analysis, semantic segmentation — and enables custom labeling workflows for specialized applications. ML teams at research institutions, AI startups, and enterprises use Label Studio to build the high-quality labeled datasets that determine model accuracy, with collaborative features that enable efficient labeling at scale across distributed annotation teams.

Key Features

  • Open-source data labeling platform
  • Supports images, text, audio, video
  • ML-assisted labeling
  • Team collaboration tools
  • Quality control workflows
  • Self-hostable

Best For

Creating training datasets for ML modelsLabeling images and text at scaleQuality control for annotationsBuilding AI data pipelines

Official Links

Tool Details

Pricing
Freemium
Free plan available
Verified Tool
Reviewed by our team
Last verified
Feb 18, 2026
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