Bytecode Viewer is an Advanced Lightweight Java Bytecode Viewer, GUI Java Decompiler, GUI Bytecode Editor, GUI Smali, GUI Baksmali, GUI APK Editor, GUI Dex Editor, GUI APK Decompiler, GUI DEX Decompiler, GUI Procyon Java Decompiler, GUI Krakatau, GUI CFR Java Decompiler, GUI FernFlower Java Decompiler, GUI DEX2Jar, GUI Jar2DEX, GUI Jar-Jar, Hex Viewer, Code Searcher, Debugger and more.
It's written completely in Java, and it's open sourced. It's currently being maintained and developed by Konloch.
How to use:
Download BytecodeViewer from official source: Releases · Konloch/bytecode-viewer · GitHub
Launch BytecodeViewer.exe for WIndows or BytecodeViewer 2.9.8.jar for *Unix, and MacOS
Drop your jar/zip/apk/dex in Files form.
If you have problem with apk, extract dex from apk and drop dex file.
If you are working with smali. Select View -> Pane 1 -> JD-GUI -> Java and View -> Pane 2 -> Smali/DEX -> Smali/DEX
Select a .class file to view the code.
That's all. You can use it to learn smali quick if you understand Java.
You can edit java with BytecodeViewer but it is bad idea to do since smali to java conversation isn't 100% perfect yet
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