The following websites either support, or are fully composed of, CC0 images available in the public domain. The owners of these images have allowed users to modify, edit, and use their images without copyright backlash. These websites provides free images for commercial use.

1. Freerange - https://freerangestock.com
2. Unsplash - https://unsplash.com
3. Pexels - http://pexels.com
4. StockSnap - https://stocksnap.io
5. Pixabay - https://pixabay.com

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