很赞的一款JS压缩/混淆器：Javascript Obfuscator v4.0

主角：Javascript Obfuscator v4.0

功能：Javascript代码压缩与混淆

点评：Javascript Obfuscator v4.0 比JS Min 和YUI Compressor 的压缩率要高，并且混淆效果更好，可以很方便的人工控制哪些名称混淆哪些不混淆，界面也非常的美观。

美中不足：是一款共享软件，试用版会有一些功能限制。

特性：

• 能自动处理html文件中的javascript标签，html页面文件引用的关联.js文件。就像处理单独的.js文件一样方便
• 移除注释与空白，减小文件尺寸，使载入时间减到最少。（注：这没什么，最基本的）
• 将代码压缩为长长的一行
• 必需的时候自动添加分号结束符
• 创建函数名与变量名的列表
• 根据用户的设定，生成难以读懂的或指定修改函数名和变量名
• 同时也支持命令行

 

以下是软件发行者网站的原文：

 

New! Javascript Obfuscator v4.0 : Best JavaScript compression ratio on the Web!

Javascript Obfuscator converts the JavaScript source code into scrambled and completely unreadable form, preventing it from analysing and theft.

Javascript Obfuscator can

• process javascript tags in html files and all .js files associated with html pages as well as separate .js files
• remove comments and white spaces, reducing the file size and minimizing the loading time
• pack the code as a long line
• add finishing ";" when appropriate
• create a list of function and variable names
• generate new non-understandable names and rename functions and variables depending on user settings
• work with command line

 

Comparison Table

 

	JSMin	YUI Compressor	Javascript Obfuscator v4.0
Jquery 1.3.2    124 995 bytes	74 121 bytes 59%	73 117 bytes 58%	44 429 bytes 35%
MooTools 1.2.2    103 064 bytes	78 412 bytes 76%	64 503 bytes 63%	47 026 bytes 46%
Prototype 1.6.0.2    130 349 bytes	93 955 bytes 72%	73 511 bytes 56%	48 244 bytes 37%

Compare how the same piece of code looks before:

and after processing by Javascript Obfuscator :

You can see the difference, can't you?

Download free trial version of Javascript Obfuscator