Free Java to Smali Converter Online

Convert your Java source code to Smali bytecode instantly with our free online tool. Perfect for Android reverse engineering, APK analysis, and understanding Android app internals. Simply drag and drop your .java file to get started. 

// Upload a Java file to see the code here
// Smali code will appear here after conversion

Convert Java Code to Smali Instantly

This tool allows Android developers and reverse engineers to convert plain Java source code into Smali bytecode. Smali is the human-readable form of Dalvik instructions inside Android APKs. By seeing both Java and Smali side-by-side, you can understand how compilers translate high-level code into low-level Dalvik operations.

What is Smali?

Smali is an assembly-like language used to represent Android's Dalvik Executable (.dex) files. Every Java method, field, and instruction is expressed in Smali syntax. For developers working on APK modification, security research, or custom ROM development, learning Smali is essential.

Why Use Our Java ⇄ Smali Converter?

  • Quickly preview how Java translates into Dalvik bytecode.
  • Useful for reverse engineering and debugging complex Android applications.
  • Supports syntax highlighting, copy to clipboard, and file download.
  • No registration required, works entirely in your browser.

Coming Soon Features

Paste or type your Java code → Convert to Smali code instantly. We are also planning Smali → Java decompilation for easier round-trip exploration.

FAQ

Do I need to upload my APK?

No. You can directly paste Java source files. APK support is in development.

Is my code stored?

No, all conversions happen in your browser. Nothing is uploaded to a server.