JAR File Downloader (Source, Modified JARs & Maven Artifacts)

What people actually mean by 'JAR file downloader' — download Java source from a JAR, save modified JARs, or pull artifacts from Maven Central. All covered.

Case 1: Download Java Source from a JAR (Decompile + Download)

Case 2: Download a Modified JAR (Edit + Save)

Case 3: Download a JAR from Maven Central or a Repository

Case 4: Download Individual Files Out of a JAR

Summary

What the JAR Decompiler Tool Actually Is