Sparanoid

A must-have plugin if you’re running a Chinese blog. This plugin also works fine with multisite enabled WordPress (aka. WordPress Mu).
No options, no additional database inserts, no stupid banners and shitty ads, install and go.
你客戶／合作夥伴不光文案寫的爛，而且還不會排版？Space Lover 可以幫到你。它會神奇的在中文、日文和英文、數字、符號之間自動加入空白，讓客戶網站的文案、文章看上去規範整潔。
無選項、無 MySQL 插入，無廣告，安裝即用。
覺得這招治標不治本？也可以試試 <a href="https://github.com/sparanoid/chinese-copywriting-guidelines" rel="nofollow ugc">sparanoid/chinese-copywriting-guidelines</a>，讓你的客戶／合作夥伴學會如何正確的排版。
Before:
<pre><code>今天出去買菜花了5000元
</code></pre>
After:
<pre><code>今天出去買菜花了 5000 元
</code></pre>

Space Lover

Magically add an extra space between Chinese characters and English letters / numbers / common punctuation marks

bjplink

ye11ow

Asian Word Count is a plugin for WordPress based on WP word count which gives you word count statistics for your blog’s posts and pages. Asian Word Count supports Asian languages( Chinese, Korean, and Japanese). In addition to overall stats, Asian Word Count also gives figures and details for the largest posts and pages of your blog as well as breakdowns by author. 
* Currently the the interface of the plugin is English, I’m trying to tanslate into Chinese and other languages. If you can contribute to the tranlation, send me an email to ye111111ow (at) gmail.com

Asian Word Count

Asian Word Count is a plugin for WordPress that gives you word count statistics for your blog's posts and pages which supports Asian languages.

Space Lover vs Asian Word Count