Description:Wikimedia Commons is a repository of free images, videos, sounds and other multimedia files.

Structured data on Wikimedia Commons is multilingual information about a media file that can be understood by humans, with enough consistency that it can also be uniformly processed by machines. Files on Wikimedia Commons can be described with multilingual concepts from Wikidata, Wikimedia’s knowledge base.

License(s): CC BY-SA or equivalent or more permissive licenses. Public Domain.

Tools for Wikimedia Commons

ISA is a multilingual, mobile-first tool, that makes it easy for people to add ‘micro-contributions’ in the form of structured data (descriptions, captions, tags, etc.) to images that have been contributed to Wikimedia Commons.