This data set includes over 100k labeled discussion comments from English Wikipedia. Each comment was labeled by multiple annotators via Crowdflower on whether it is a toxic or healthy contribution. We also include some demographic data for each crowd-worker. See our wiki for documentation of the schema of each file and our research paper for documentation on the data collection and modeling methodology. For a quick demo of how to use the data for model building and analysis, check out this ipython notebook.