An useful tool for character counting while writing your text, content or carrying out tests that you may need to check for character limitations and boundaries.
Its a simple tool that give you some help on your daily basis testing work.
It should work ok in many browsers.
Here are some example of characters limitations:
Reddit Title: 300
Ebay Title: 80
Yelp Post: 5000
LinkedIn Summary: 2000
Pinterest Description: 500
Blogspot description: 500
Facebook status: 63,206
Title tag in HTML: only display 70 characters
Meta descriptions in HTML: have no limitation but only first 155 characters are displayed in Google search results