Url of large image of a YouTube video

Question

I\'m interested in getting a preview image of a youtube video for my application I\'m using the url to the previews:

http://img.youtube.com/vi/EqWRZrupLrI/0.jpg

Answer 1

0.jpg is the full-size 480p thumbnail and there is no bigger thumbnail except for full HD videos (maxresdefault.jpg).

But why do you expect a bigger thumbnail for such a video ? Your video example has a resolution of 240p, the thumbnail is already much bigger than the video resolution.

Answer 2

Please check the following SO post:

How do I get a YouTube video thumbnail from the YouTube API?

YouTube thumbnail link doesn't work in all cases

It will surely solve your problem. I recommend to query the youtube api to get the thumbnail with max resolution.

Answer 3

Each of every image has 4 category like

https://img.youtube.com/vi/<insert-youtube-video-id-here>/0.jpg
https://img.youtube.com/vi/<insert-youtube-video-id-here>/1.jpg
https://img.youtube.com/vi/<insert-youtube-video-id-here>/2.jpg
https://img.youtube.com/vi/<insert-youtube-video-id-here>/3.jpg 

Also you can get more image size by this

-- For default

https://img.youtube.com/vi/<insert-youtube-video-id-here>/default.jpg

-- For high quality

https://img.youtube.com/vi/<insert-youtube-video-id-here>/hqdefault.jpg 

-- For medium quality

https://img.youtube.com/vi/<insert-youtube-video-id-here>/mqdefault.jpg

-- For max size

https://img.youtube.com/vi/<insert-youtube-video-id-here>/maxresdefault.jpg