[shivang]

You should have this in mind: Facebook was not the first social network, google was not the first search engine, amazon was not the first marketplace. So think of the market whether there is room for some more improvements and/or the market is huge enough to have more than one similar products. How can you solve the shortcomings of the similar product and be different.

[Mimu]

Following this point, I think that it probably exist (at least others people had the idea for sure, most probably didn't do anything with it, most likely for the same reason you don't), but if it's not big enough for you to know they exist, you're free to go imo.

Facebook was not the first social network, however if you want to make a facebook clone today you may aswell throw your money right away and save your time.