Very best plugin

since February 2015, Imgur is now unlimited.

Imgur Pro (paid account service) is free.

Imgur Pro for Everyone.

https://imgur.com/blog/2015/02/09/imgur-pro-for-everyone/

“Store an unlimited number of images in your account
Receive multiple thumbnail options on all uploads
Access complete image analytics and referrer data
Manage, edit or delete any uploaded image at any time
Interact with the awesome Imgur community through commenting, voting and sharing”