jpFonts offers the collections of the following two Chinese font foundries: Hanyi and Tensentype
All fonts shown are available as Simplified Chinese for the People's Republic of China in GB 2312-80 or GB 18030-2000, i.e. without the traditional character variants for Taiwan and HongKong.
GB2312 is a character set for simplified Chinese characters. It includes 7,445 characters. All characters are arranged in a 94×94 matrix, so a maximum of 8,836 characters are possible. This system is also used by JIS X 0208 and KS X 1001.
GB18030 is the successor standard for GB2312 and covers the traditional and simplified characters used in the People's Republic of China. GB18030-2000 includes 27,484 characters.