- Pixabay (email login or Google account login required) - images uploaded by professional photographers that are free to use
- Public Domain Pictures (email required for login) - free and premium subscription to stock photos
- Photos for Class (no login required) - safe G rated photos to download
- Pics for Learning (no login required) - safe photos to download or save to Drive
- Morgue File (no login required) - free photo archive
- Google Images (no login required) - when searching for images you must change the usage rights to 'labeled for reuse' or 'labeled for noncommercial reuse' (video demonstration)
- Cupcake (no login required) - free photos by photographer Jonas Nilsson Lee. The images are many nature theme.