- http://lorempixel.com/
- http://placehold.it/
- http://dummyimage.com/
- http://fakeimg.pl/
- https://placeholder.com/
- https://placeimg.com/
- https://unsplash.it/
- https://github.com/cloudfour/simple-svg-placeholder
- https://github.com/tylergaw/day-player
- https://github.com/bengourley/placeholder
- https://github.com/Evlos/placeholder