Labeled data is the bottleneck of your NLP operation

Clear that bottleneck, save time and money with LightTag



Beautiful, free Web UI for annotations supporting NER and classification

  • Beautiful web based annotation platform
  • Save work locally
  • Work offline - Data never leaves your computer
  • Supports span annotations and classification
  • Define relationships between entities


$0.01 per annotation

Manage your team of labelers to get high quality labeled data

  • From 10K annotations a month
  • Pay only for what you use
  • LightTag manages your team's work schedule
  • Automate your labeling with LightTag's ML
  • Full API access
  • Analytics about your projects, schemas and annotators
  • Access controls and work routing for different teams


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For large teams and on-premise installations

  • Seamless on-premise deployment
  • AD/SSO integration
  • Audit Logs
  • Supports HIPAA Compliant
  • Supports GDPR Compliance (including right to be forgotten)

Thinking of building your own tool ?

We offer discounts for teachers, students, researchers, and NGOs