Safebooru It is a tag-based image archive maintained by anime fans, containing 3 million lines of tag-based anime image metadata. It allows users to post images and add tags, annotations, translations, and comments. It originated from Danbooru and does not contain explicit content.

content

The data was scraped via Safebooru's online API and then converted from XML to CSV (some attributes were discarded during the conversion to make the entire csv smaller).
There are 2,736,037 rows of metadata.
The data contains images uploaded to safebooru.org between January 29, 2010 and June 7, 2019.

Acknowledgements

Banner image taken from https://safebooru.org/index.php?page=post&s=view&id=1514244

Alex Lamson uses safebooru-predict The script collects data (there are some other useful scripts)