LightTag.io

The biggest barrier to NLP projects today is acquiring labeled data. LightTag delivers the tools you need to execute and manage an annotation project with a team. Our annotation interface optimizes annotators work and keeps them engaged. LightTag handles everything needed for a team, from auth to auditing to to analytics, Since the only measure of quality is inter-annotator agreement, LighhtTag automatically assigns work to evaluate that goal. 
For project managers, LightTag provides in depth metrics into a projects status, from number of annotations and velocity, to the performance of individual annotators and tagging schemas.