ProGuard Java Optimizer and Obfuscator Icon

Java class file shrinker, optimizer, obfuscator, and preverifier

User Ratings

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ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
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User Reviews

  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Several years ago I used proguard without any major problems. BUT. Something really nasty happened in last several versions: with 5.3.2 I am getting: (Unexpected end of ZLIB input stream) and with version 4.4 I got: (Unsupported version number [51.0] for class format) Kind of sad that developers cant seem to get it right for VERY long time! George Matveev www.matveev.se P.S. also it is rather funny that one can not submit a bug without asking project admin! :-) Now we have to find some other obfuscator that works on Linux!

    Posted 02/23/2017
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    The only obfuscator that I got to work with JavaFX + Spring.

    Posted 05/02/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Well, it looks really great but is too hard to get to work. Errors, errors everywhere. I am not alone, check stackoverflow tag proguard.

    Posted 05/09/2015
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Very good program, obfuscate my code as required

    Posted 04/10/2015
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Works all the time. Excellent GUI and documentation. Must have app for Java devs.

    Posted 02/16/2015
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Just perfect :) nothing wrong ... nice work

    Posted 06/29/2014
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    This tool has an amazing feature range, doc is brilliantly clear, and it really works !!

    Posted 06/13/2014
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Parab�ns

    Posted 01/21/2013
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    very good program, thanks

    Posted 09/11/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Very useful. Software Suite is easy to use and like.

    Posted 06/15/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    this's so easy. tank's 4 u'r kind

    Posted 06/13/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    nice and simple GUI, i like it a lot better.

    Posted 06/13/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I think it is one of the best. I want to use some other fuction.

    Posted 06/07/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    It's an essential tool for my computers.

    Posted 06/07/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Fast and Efficient. better than Windows based programs and FREE.

    Posted 06/07/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    the best, just works

    Posted 06/06/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    The best file utility I've used - simple, efficient, and powerful.

    Posted 06/05/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    nice work mate!

    Posted 06/04/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Good Soft! Thank.

    Posted 06/02/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Like my Mac is supposed to.

    Posted 06/02/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Works great every time, never any trouble.

    Posted 06/02/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    One of the most useful tools in my toolbox.

    Posted 05/09/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    the very best obfuscator ever !! it is an unbelievable project, try the GUI !!

    Posted 11/03/2011
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    very good project

    Posted 02/21/2011
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Eric kindly answered my question in short order

    Posted 01/06/2011
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