cfr-decompiler

Modern Java decompiler that converts compiled .class files back to source code

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Yet Another Java Decompiler

cfr

Decompile a single JAR file to stdout$ cfr MyApplication.jar

Decompile a JAR and save output to a directory$ cfr MyApplication.jar --outputdir src/

Decompile a specific class file with options$ cfr MyClass.class --showversion --showinferrable