Upa IDNA is the Unicode IDNA Compatibility Processing (UTS #46) C++ library. It is compliant with the 17.0.0 version of the Unicode standard.
This library implements two functions from UTS #46: to_ascii and to_unicode, and two functions from the WHATWG URL Standard: domain_to_ascii and domain_to_unicode. It has no dependencies and requires C++17 or later.
This library is licensed under the BSD 2-Clause License.