A meta-search engine that aggregates free and Creative Commons-licensed photos from many separate sources into one searchable library, claiming over 354 million images.
Its value is sheer aggregated scale: searching across a huge pool of freely-licensed photos pulled from many different origins in one place.
Fits broad subject searches when a single stock library does not have the specific image you are after.
Individual photo licenses vary by original source, from public domain through CC-BY, so check the license tag on each photo before commercial use.
High quality free stock photos in one place. 354 Million Free Stock Photos.