upload in / on / to

[Philip SY]

Hi.








I uploaded pictures <to/in/on> a chatting room.




Is that sentence correct?
If I upload something to a group chatting room on Whatsapp, which preposition should be used when using "upload"?

 

[emsr2d2]

You can upload things to the internet or to any site which occurs on the internet. I would use "to" in your context though I would add that "on" is not entirely wrong. Note that it's "chatroom", not "chatting room".