JADX
JADX decompiles Android APK and DEX files back into readable Java source with a simple GUI.
Legal & ethical use. Use this tool only on systems, networks and data that you own or have explicit written permission to test. Unauthorised access or scanning can break computer-misuse laws (for example Pakistan's Prevention of Electronic Crimes Act, 2016, and equivalents elsewhere). Practise in your own lab or in authorised environments such as CTFs.
What it is used for
- Review the code of an Android app you built or are authorised to test
- Solve Android reverse-engineering CTFs
Key features
- APK/DEX to Java
- GUI with search
- Deobfuscation options
Installation
Download a release from GitHub or install via a package manager.
Beginner usage guide
Open an APK in jadx-gui, use the search to find strings such as URLs, and read AndroidManifest.xml for exported components.
Example commands
Run these only against your own lab or authorised targets. Placeholder addresses such as 192.0.2.x are documentation ranges.
Open an APK in the GUI
jadx-gui app.apkBrowse the decompiled packages and resources.
References
Source verification
Last reviewed: 2026-10-27
Links checked over HTTP: 2026-10-27 07:51 UTC — official: 200, docs: 200, repo: 200
Commands were written from the official documentation and have not been executed on this site; test them in your lab.