Hi,

I'm Wataru ONO, librarian at Hitotsubashi University Library in Japanese.

This tool is "From Chinese characters to convert Pinyin and
Traditional and Simplified Chinese and Hangul"
https://googledrive.com/host/0B_vZSxPrv8xmVnZwSkk0ZmU2Zmc/han2pin.html

You can convert between Simplified and Traditional Chinese and
Japanese characters.
This is made of pure javascript.
If you are interested in this tool, please feel free to use and down load.

Best regards