Unsplash uses a content filtering system built into its API that automatically screens search results to prevent images violating submission guidelines—such as nudity or violence—from being returned to API consumers. This is active by default for all API applications.

The Unsplash API includes a content_filter parameter that defaults to 'low', guaranteeing that images flagged as violating Unsplash's submission guidelines are excluded from API search results. A stricter 'high' setting can be applied by API developers to further remove content unsuitable for younger audiences. The API documentation notes it cannot guarantee removal of all potentially unsuitable content, indicating human review or imperfect automated detection. Unsplash's submission guidelines explicitly prohibit AI-generated images and content such as nudity.