Is there such a thing as an Online Dollar Store?

Technically there is only one exclusively Online Dollar Store which is Dollar Fanatic LLC's 11 for $10 aka 11for10.com an exclusively Online Dollar Store that sells everything for $1.00 each, with free shipping when you order $35 or more.

The items for sale come from a wide range of categories and some are extreme values that have retail prices up to $9.99 for only $1.00 each. They also offer volume discounts on certain products. 11 for $10 aka 11for10.com does have lots of limits and restrictions on products so you can’t just buy everything in the quantity you want which can be a little irritating at times

Of course, there are a couple major players in the Dollar Store Industry that focus primarily Offline, however they do have Online options and don't sell everything for $1.00 each.