Post Length Checker
Every platform counts differently. A link is twenty-three characters on one and its full length on another; an emoji is one character to you and four to a text message. This counts it the way each one will.
The post
Counted properly
0characters as a person would count them
Against each limit
Text messages
A message stays cheap while every character is in the GSM alphabet. One curly quote or emoji switches the whole thing to the wide encoding and halves what fits.
Where it would be cut