Unsplash: 6.5 Million High-Resolution Images with Semantic Keywords

Unsplash released this collection of over 6,500,000 high-resolution images for research and machine learning applications in April 2025. The data includes professional-quality photography paired with semantic keywords and search-engine metadata. It is maintained by the Unsplash organization to support large-scale computer vision and information retrieval studies.

Use Cases

• Training computer vision models using the 6.5 million image library
• Developing image search engines based on the provided semantic keywords
• Researching image-text alignment and retrieval using the associated metadata

Strengths

• Contains over 6,500,000 high-resolution images
• Includes semantic keywords for image-text alignment
• Sourced from a professional-quality photography platform

Limitations

• Specific file formats and schema details are not provided in the repository overview
• Potential for aesthetic bias as the source platform curates for visual appeal rather than raw real-world distribution

Provenance

Source

Unsplash

Collection Method

Aggregated from the Unsplash photography platform

Freshness

Updated as of April 2025.

Geography

Global