LightTag

LightTag is a text annotation platform that helps teams label text data, validate quality, and search across annotated datasets. It's designed for creating training data for machine learning projects, organising unstructured text, and ensuring consistency across large labeling tasks. The platform combines a collaborative annotation interface with AI-assisted suggestions to speed up manual labeling work. The tool supports multiple team members annotating simultaneously with version control and quality checks to maintain consistency. You can create custom labels, apply them to text, and use the search functionality to find specific information quickly across your dataset. The AI features can suggest labels based on patterns, reducing repetitive work. LightTag is useful for data scientists preparing ML training sets, teams building NLP models, content classification projects, and any work involving systematic text labeling and validation. The freemium model provides basic functionality at no cost, with paid tiers for teams with larger projects or more advanced needs.