Datatang.ai - Datatang provides off-the-shelf AI training datasets, on-demand data collection & annotation solutions that power the world's most innovative artificial intelligence.
Annotable - Ultimate image annotation & markup tool
LabelMe Annotation Tool - LabelMe is an annotation tool writen in Javascript and Perl for online image labeling.
Good Annotations - A online annotation tool that is perfect for providing feedback to your team.
Predictly.co - Save time and resources with our state of the art human-in-loop Data annotation platform services to build your solution specific AI solutions. We help you with the data heavy lifting while your data scientists focus on business centric solutions.
marker.js - Add image annotation feature to your web apps