Are you building a frontend, and can’t be arsed to do the backend thumbnail magic?
thumb.quest was made for lazy people like you (and me).
<img src="https://thumb.quest/?src=https://cataas.com/c">
const ThumbImg = ({src, width, height}) =>
<img src={`https://thumb.quest/?src=${src}&width=${width}&height=${height}`} />
?src=<url> // full image url
&static=true // false disables cache, seriously increases load time
&width=120 // maximum thumbnail width
&height=120 // maximum thumbnail height
&crop=false // true enables "fill" cropping
// try it out!