Convert Chinese Characters to Pinyin
This site you to paste in Chinese characters, and it will output the characters that you pasted in along with the corresponding Pinyin below each character along with the character’s meaning.
This is an extremely good site for converting Chinese characters to Pinyin. It is probably my favourite of this list. Once you paste Chinese character(s) in, it will convert it to Pinyin with numbers and Pinyin with tone marks. It will also give you back the characters that you pasted. If you paste traditional characters, it will also convert those to simplified characters, and show the traditional and simplified next to each other.
Converts from Chinese characters to a choice of 2 different types of Pinyin. You can choose to convert from Chinese characters to tone number Pinyin or from Chinese characters to tone mark Pinyin. Supports both traditional and simplified characters. For example you can choose to convert the characters 今年 which mean this year into tone numbers which are jin1 nian2 and to tone marks which are jīn nián. It will also put the Pinyin in colours, to help distingish between tones. Tone 1 is coloured red, tone 2 is coloured yellow, tone 3 is coloured green, and tone 4 is coloured blue.
This site allows you to convert from Chinese characters to different types of Pinyin, Zhuyin, other forms, and HTML code.
Type in Pinyin and convert from Pinyin with tone numbers to Pinyin with tones
On this site, you simply type or paste in pinyin with tone numbers, such as ni3 hao3, and then it will convert that to pinyin with tone marks nǐ hǎo.
Allows you to convert between different versions of Chinese romanisations: Pinyin, Bopomofo, Yale, Wade-Giles, and more. (Note you must enable Java for this to work).
Another very interesting site that gives you Pinyin with tone marks by typing in Pinyin with tone numbers.
Convert Between Chinese Characters (Traditional Chinese Characters <-> Simplified Chinese Characters)
Convert from Traditional Chinese Characters to Simplified Chinese Characters.
Convert from Simplified Chinese Characters to Traditional Chinese Characters.
Convert Pinyin to Unicode
On this site, you convert text from Pinyin with tone numbers and it outputs Pinyin with tone marks and its Unicode, which is usually easier for websites to display and read.