Have you ever seen OBJ in
your Facebook posts? Do you know what this means? Well, OBJ basically stands
for an "object replacement character" in Unicode. It is used as a
text placeholder for an unspecified object. It is a replacement for a character
that is not displayed on the screen. If you post something happy and you check
your new post on the phone, you will realise that your pretty emojis are not
found. Instead, you’ll see little dashed boxes with the letters
"OBJ". Everything that you see on a webpage is an "object",
which means that there’s an object that can’t be displayed on the screen which
answers your question what is OBJ on Facebook? Also, you’re not actually
supposed to be seeing OBJ. It symbolises when the software that you’re using
doesn’t know how to display a particular character, which leads to OBJ.