Language Support

In Streamio the supported languages are English and Swedish. File-names and titles and other meta-data connected to uploaded media should be fine in general since we are using UTF-8 or Unicode Standard which is:
The Unicode Standard is a character coding system designed to support the worldwide interchange, processing, and display of the written texts of the diverse languages and technical disciplines of the modern world. In addition, it supports classical and historical texts of many written languages.
For the full list of supported scripts and languages see this link: https://www.unicode.org/standard/supported.html 
Still, there could be an issue due to the font used to show some characters. If this font doesn’t support a certain character encoding those characters will be rendered/shown by a default font which has this support. This fall back is automatised in the web browser and will just cause esthetic differences.