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JAR ZIP
File conversion

Convert JAR to ZIP

Verified by Adam B.· reviewed by FE Editorial ·updated Jun 30, 2026
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Is it possible to convert JAR to ZIP?
Yes - JAR converts to ZIP.

Rename the .jar file to .zip and any file manager or archive tool will open it. No bytes change and the file remains a valid Java archive if renamed back.

1 programs
Also to ZIP: KGL · IMAZINGAPP · LOCKER

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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Why convert JAR to ZIP?

A JAR (Java Archive) uses the identical ZIP container format, starting with the same PK magic bytes. The only thing making it a JAR is its internal structure: a META-INF/MANIFEST.MF and compiled .class files. Renaming to .zip lets you browse or extract its contents without any Java installation.

How to convert JAR to ZIP

Windows Explorer EASIEST

Show file extensions (View > Show > File name extensions), right-click the .jar and rename it to .zip, then double-click to open it natively.

7-zip OPEN-SOURCE

Right-click the .jar file, select 7-Zip > Open archive - no rename needed - and browse or extract any contents.

Programs that convert JAR

7-zip

About these formats

.JAR Java Archive

A JAR file is a Java Archive - a ZIP bundle of compiled Java bytecode (.class files), resources, and a manifest. To run an executable JAR you need Java installed (OpenJDK/Temurin is free),…

Open .JAR details →
.ZIP ZIP Archive

A ZIP file is a compressed archive that stores one or more files in a single smaller package. On Windows, macOS, iOS, and Android you can open it without installing anything - just…

Open .ZIP details →

Quality & what to watch

  • No data is lost - the rename is purely cosmetic; all .class files, resources, and the MANIFEST.MF survive intact.
  • Renaming back to .jar restores full Java functionality - the file runs exactly as before.
  • A renamed .zip is not a runnable JAR; if the goal is to execute the program, keep the .jar extension.

Frequently asked questions

Do I need to install anything to open a JAR as a ZIP?
On Windows, rename the file to .zip and double-click - Windows Explorer opens it natively. 7-Zip can also open a .jar directly without renaming.
Will the JAR still work after I rename it to .zip and back?
Yes - the bytes do not change; renaming back to .jar makes it fully functional again.
What is inside a JAR file?
Compiled Java .class files arranged in package folders, a META-INF/MANIFEST.MF descriptor, and any resources (images, config files) the application uses.