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ProGuard is a Java class file shrinker and obfuscator. It detects and removes unused classes, fields, methods, and attributes, then renames the remaining classes, fields, and methods using short, meaningless names. The resulting jars are smaller and harder to reverse-engineer. Advantages of ProGuard compared to other Java shrinkers and obfuscators are compact template-based configuration, memory efficiency, and speed.


User manual available in HTML format from


LicenseVerified byVerified onNotes
GPLv2Janet Casey9 September 2002

Leaders and contributors

Eric Lafortune Maintainer
Mark Welsh Contributor

Resources and communication

Audience Resource type URI
Bug Tracking VCS Repository Webview
Bug Tracking,Developer,Support E-mail

Software prerequisites

Kind Description
Required to use JRE 2 or later

This entry (in part or in whole) was last reviewed on 22 November 2004.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

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