- LoremFlickr.com – e.g. https://loremflickr.com/320/240/alpaca
- Place Kittens – e.g. http://placekitten.com/100/100
- Dynamic Dummy Image Generator – e.g. https://dummyimage.com/100/ff6666&text=XSS
- https://loremipsum.io/21-of-the-best-placeholder-image-generators/
- https://www.toptal.com/designers/subtlepatterns/
Free image stock
- Pixabay
- Use Tiny URL to shorten image links: https://tinyurl.com
Insert images
<img src='https://images.app.goo.gl/cATKaneuc7pHe9Ww9' />
<iframe src=data:text/html;base64,PGltZyBzcmM9J2h0dHBzOi8vaW1hZ2VzLmFwcC5nb28uZ2wvY0FUS2FuZXVjN3BIZTlXdzknIC8+>