Charly

In the English-speaking world, this name can also be feminine, making it unisex.

In the USA, it was given to 109 girls and 28 boys in 2014 and just like any other "Charlie" variant, This variant is trending for Girls.
https://www.names.org/n/Charly/about
http://www.nancy.cc/baby-name/charly/
http://names.darkgreener.com/#charly

https://www.first-name.net/charly#Info_US
https://www.first-name.net/charly#Info_UK
https://www.first-name.net/charly#Info_CAAB
https://www.first-name.net/charly#Info_AU
https://www.first-name.net/charly#Info_IE

The Wikipedia page Defines it as Unisex.
https://en.wikipedia.org/wiki/Charly_(name)