JScrambler
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JScrambler is an out of the ordinary JavaScript obfuscator and JavaScript compressor able to preclude JavaScript analysis and theft. It also offers JavaScript compression for faster page loading times.

Web API: offers a simple way for developers to integrate JScrambler into their development environment
Locks down a JavaScript to a specific domain
Sets your JavaScript to expire after a specific date
Compress source code for faster loading times
Hides commonly used HTML DOM and browser’s names
Changes the program control flow
Reorder function definitions
Encode JavaScript and protect it from debugging
Checks the integrity of your JavaScript
Lexical and syntactic analysis of the JavaScript source code
Abstract Syntax Tree based transformations instead of regular expressions
Remove code comments, white spaces and newlines
Replace identifiers with private access for meaningless smaller ones

Milestones
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JScrambler — JScrambler has a new feature: Expiration Date. Now you will be able to obfuscate a JavaScript and make it expire automatically after a specific date. (11/30/10)

Posted 11/30/10 at 9:15am via jscrambler.com
JScrambler — We are testing JScrambler minification and compression using some of the most used JavaScript Libraries and Frameworks available on the Web. The results are being posted and can be found at jscrambler.com/compress. (11/10/10)

Posted 11/30/10 at 7:18am via jscrambler.com
JScrambler — JScrambler beta has ended. We would like to thank all the beta tester for all the feedback and suggestions. What now? Well, beta testers will continue to have full access to JScrambler until the end of the month. JScrambler will be available to everyon (9/13/10)

Posted 9/22/10 at 4:06pm via jscrambler.com
JScrambler — JScrambler has a new feature: Domain Lock. Now you will be able to obfuscate a JavaScript so it only works on a specific domain. If anyone tries to re-use your JavaScript on another domain it will stop working properly. We believe this feature can drive a (6/15/10)

Posted 9/22/10 at 4:03pm via jscrambler.com
JScrambler — Currently working on Domain Lock to obfuscate a JavaScript so it only works on a specific domain. This means that you will be able to license your JavaScript to a specific site. (5/28/10)

Posted 6/3/10 at 11:30pm via jscrambler.com