Jre4Android
Run JAR files, CLASS files, Java Swing GUI apps and J2ME apps directly on Android.
Featured Apps
Start with Coobbi's core Android tools for Java apps, file inspection and network control.
Jar File Opener
Open, inspect, decompile and extract JAR files on Android.
Network Speed Monitor & Firewall
Monitor internet speed and block unwanted app connections without root.
File Tools
Dedicated Android file opener apps for JAR, DAT, OBB and native SO libraries.
Jar File Opener
Open, inspect, decompile and extract JAR files on Android.
APK File Opener
Open APK, XAPK and APKS files, view app details, check permissions and extract package contents.
DLL File Viewer & EXE Viewer
Open DLL and EXE files on Android, inspect Windows executable metadata and view package details.
Pages File Opener
Open Apple Pages documents on Android and inspect document package contents.
Ini File Opener
Open INI configuration files on Android and view sections, keys and values.
DAT File Opener
Open, view and extract DAT files on Android.
OBB File Opener
Open, browse and extract Android OBB files.
SO File Viewer
Open .so files and check Android 16KB page size support.
Popular Tutorials
Guides that help users solve common Android file and Java tasks.
How to Run JAR Files on AndroidUse Jre4Android to run compatible Java JAR apps directly on Android.Run Java Swing Apps on AndroidLaunch desktop-style Java Swing GUI apps with touch, zoom and virtual mouse controls.How to Run .class Files on AndroidRun compiled Java CLASS files from your Android device.J2ME Emulator for AndroidRun classic Java ME apps and games on Android.How to Open JAR Files on AndroidOpen, browse and inspect Java JAR archives on Android.How to View MANIFEST.MFCheck Main-Class, Manifest-Version and other JAR metadata.
Build your Android utility workflow with Coobbi Tools.
Use one tool to inspect files, another to run Java, and more tools for network monitoring and server management.