1<!doctype html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<html> 3<head> 4<meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> 5<meta http-equiv="content-style-type" content="text/css"> 6<meta name="author" content="Eric Lafortune"> 7<meta name="description" content="ProGuard: java shrinker, optimizer, obfuscator, and preverifier"> 8<meta name="keywords" content="java obfuscator, optimizer, shrinker, preverfier"> 9<link rel="stylesheet" type="text/css" href="style.css"> 10<title>ProGuard Main</title> 11</head> 12<body> 13 14<script type="text/javascript" language="JavaScript"> 15<!-- 16if (window.self==window.top) 17 document.write('<a class="largebutton" target="_top" href="index.html#main.html">ProGuard index</a> <a class="largebutton" target="_top" href="http://www.saikoa.com/dexguard">DexGuard</a> <a class="largebutton" target="_top" href="http://www.saikoa.com/">Saikoa</a> <a class="largebutton" target="other" href="http://sourceforge.net/projects/proguard/">Sourceforge</a>') 18//--> 19</script> 20<noscript> 21<a class="largebutton" target="_top" href="index.html#main.html">ProGuard index</a> 22<a class="largebutton" target="_top" href="http://www.saikoa.com/dexguard">DexGuard</a> 23<a class="largebutton" target="_top" href="http://www.saikoa.com/">Saikoa</a> 24<a class="largebutton" target="other" href="http://sourceforge.net/projects/proguard/">Sourceforge</a> 25</noscript> 26 27<h2>Main</h2> 28 29<p class="intro"> 30<b>ProGuard</b> is a free Java class file shrinker, optimizer, obfuscator, and 31preverifier. It detects and removes unused classes, fields, methods, and 32attributes. It optimizes bytecode and removes unused instructions. It renames 33the remaining classes, fields, and methods using short meaningless names. 34Finally, it preverifies the processed code for Java 6 or higher, or for Java 35Micro Edition. 36</p> 37Some uses of <b>ProGuard</b> are: 38<ul> 39 40<li>Creating more compact code, for smaller code archives, faster transfer 41 across networks, faster loading, and smaller memory footprints.</li> 42 43<li>Making programs and libraries harder to reverse-engineer.</li> 44 45<li>Listing dead code, so it can be removed from the source code.</li> 46 47<li>Retargeting and preverifying existing class files for Java 6 or higher, to 48 take full advantage of their faster class loading.</li> 49 50</ul> 51<p> 52<b>ProGuard</b>'s main advantage compared to other Java obfuscators is 53probably its compact template-based configuration. A few intuitive command 54line options or a simple configuration file are usually sufficient. 55The user manual explains all available options and shows examples of this 56powerful configuration style. 57<p> 58<b>ProGuard</b> is fast. It only takes seconds to process programs and 59libraries of several megabytes. The results section presents actual figures 60for a number of applications. 61<p> 62<b>ProGuard</b> is a command-line tool with an optional graphical user 63interface. It also comes with plugins for Ant, for Gradle, and for the JME 64Wireless Toolkit. 65<p> 66<p class="intro"> 67<a href="http://www.saikoa.com/dexguard" target="_top"> 68<img align="left" src="android_shades.png" width="64" height="64" /></a> 69<b>ProGuard</b> now has a sibling optimizer and obfuscator for Android: 70<a href="http://www.saikoa.com/dexguard" target="_top"><b>DexGuard</b></a>. It 71focuses on code protection, with additional features like string encryption, 72class encryption, and dex splitting. It directly targets Dalvik bytecode and 73streamlines the Android build process. 74</p> 75The following sections provide more detailed information: 76<ul> 77<li><a href="main.html">Main</a>: this overview page.</li> 78<li><a href="results.html">Results</a>: some results obtained with 79 <b>ProGuard</b>, including timings and memory usage.</li> 80<li><a href="FAQ.html">FAQ</a>: answers to some Frequently Asked Questions.</li> 81<li><a href="manual/index.html">Manual</a>: the complete <b>ProGuard</b> user 82 manual, with examples and troubleshooting tips.</li> 83<li><a href="quality.html">Quality</a>: a discussion of the (excellent) quality 84 of <b>ProGuard</b>'s code.</li> 85<li><a href="screenshots.html">Screenshots</a>: some impressions of what <b>ProGuard</b> looks like.</li> 86<li><a href="testimonials.html">Testimonials</a>: what users think of 87 <b>ProGuard</b>.</li> 88<li><a href="license.html">License</a>: <b>ProGuard</b> is free, under a GPL 89 license.</li> 90<li><a href="downloads.html">Downloads</a>: download the <b>ProGuard</b> 91 package yourself.</li> 92<li><a href="feedback.html">Feedback</a>: tell me about your experiences, or 93 learn from others on our forums.</li> 94<li><a href="acknowledgements.html">Acknowledgements</a>: people who have been 95 helpful.</li> 96<li><a href="alternatives.html">Alternatives</a>: other Java obfuscators, 97 optimizers, and shrinkers.</li> 98</ul> 99 100<hr /> 101<address> 102Copyright © 2002-2014 103<a target="other" href="http://www.lafortune.eu/">Eric Lafortune</a> @ <a target="top" href="http://www.saikoa.com/">Saikoa</a>. 104</address> 105</body> 106</html> 107
