Emptycharacter Com: Empty signs, blank signs, invisible signs and white spaces. They look like space, but they’re actually a different (unicode) character. They can be used if you want to represent empty space without the use of space.
Let’s say that you want to use an empty value on a website or application, but spaces are not accepted. You can use one of the characters on this site for this situation. For example, sending an empty message or setting a blank form value. If the application filters out other unicode characters, the characters on this site may not work.
WhatsApp does not allow empty messages to be sent using spaces. You can use the blank character on this page to work around this issue. It’s seen as a character other than space, but it looks the same. You can use it to send an invisible message, or to empty your WhatsApp status.