JADX review
A free, local Android decompiler with GUI, CLI, resource decoding, and Smali debugging.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
JADX is an open-source decompiler for developers, reverse engineers, and security researchers working with Android applications. It produces Java source code from Dalvik bytecode in APK and DEX files, while also supporting AAR, AAB, and ZIP inputs. The tool runs locally on Windows, macOS, and Linux, with graphical and command-line distributions. It can also be used as a Java library, making it suitable for examining Android application code and resources without a paid plan.
Its main strength is the breadth of its Android-focused analysis workflow. JADX decodes AndroidManifest.xml and compiled Android resources, includes deobfuscation capabilities, and provides syntax highlighting, declaration navigation, usage search, and full-text search in the graphical interface. The GUI also includes a Smali debugger. For users who prefer automation or configurable exports, the command-line interface offers decompilation and export options. Plugin installation, listing, updating, enabling, and disabling add a way to manage extensions within the tool.
JADX is a strong fit when free, open-source APK or DEX decompilation is the priority, particularly for users who want both visual inspection and command-line access. Its scope is narrower for workflows centered on native-code decompilation, since its documented focus is Dalvik bytecode. Verified integrations and scripting APIs are limited, so teams seeking a broader integration layer may prefer a different decompiler. For Android-focused code recovery, resource inspection, searching, and Smali debugging, JADX offers a focused feature set without subscription tiers.
JADX pros and cons
- Where it wins
- Supports APK, DEX, AAR, AAB, and ZIP inputs with resource decoding
- Combines GUI navigation, search, deobfuscation, and Smali debugging
- Free, open source, cross-platform, and available through GUI or CLI workflows
- Where it doesn't
- Focused on Dalvik bytecode rather than native-code decompilation
- Verified integrations and scripting APIs are limited
- Requires local downloadable GUI or command-line distributions
JADX fact sheet, pricing and score →
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