Jar File Opener

Jar File Opener lets you open, inspect, and extract JAR files directly on your Android device.

Whether you downloaded a Java archive and want to view its contents, read its manifest, or extract files inside it, this app provides a simple and efficient solution.

Key Features

Open JAR files on Android
Quickly browse and select .jar files from your device storage.

View JAR file information
See file name, size, path, and archive details at a glance.

Read manifest (META-INF/MANIFEST.MF)
Inspect important metadata such as:
Main-Class
Created-By
Manifest-Version

Extract JAR contents
Unpack files and folders inside the archive to your device.

Browse archive structure
Explore files inside the JAR, including:
resources
images
text files
class files

Inspect class files inside JAR archives
When browsing class files in a JAR, you can open them and choose different ways to inspect them.

View class files in Hex
Check the raw compiled content of .class files in Hex format.

Decompile class files to Java
Decompile .class files into readable Java code for easier inspection.

Detect runnable JAR files
Check whether a JAR may be executable based on manifest entries.

Lightweight and easy to use
Designed for fast performance and a clean user experience.

What is a JAR file?

A JAR (Java Archive) file is a package format used to bundle Java applications, libraries, and resources into a single file.

This app helps you open and explore JAR files on Android without needing advanced tools.

Perfect For

Opening downloaded JAR files
Viewing manifest details
Extracting files from Java archives
Inspecting Java resources
Browsing class files inside JAR archives
Viewing class files in Hex
Decompiling class files to Java
Checking whether a JAR may be runnable

Important

This app is designed for opening, viewing, and extracting JAR files.
It does not provide a full Java runtime environment for executing JAR files.

Get Started

Download Jar File Opener and manage your JAR files easily on Android.

Class inspection and decompiler features are intended for learning, analysis, and authorized file inspection.
Please respect copyright, software licenses, and applicable laws when using these features.