Visit Google Translator and Bookmark it! You’ll love this handy tool!

In addition to its language translation features, Google Translator can also serve as a conversion tool for Chinese, e.g.  Hanzi to pinyin or simplified to traditional characters.

Pinyin Conversion 汉字转换拼音

If you have more text to convert to pinyin or add tone marks, it is most efficient to use the Google Translator   for its pinyin feature.  Simply copy/paste your Chinese text to the text box and it will automatically display pinyin with tone marks at bottom.

（Caution: for characters that have two pronunciations, the conversion might not be accurate.)

Simplified-Traditional Conversion 简繁转换

Just paste your Chinese text into the box, and choose Chinese (Simplified) to Chinese (Traditional). Done!