Decompile Android APK to Java Online: A Free and Easy Tool for Developers
Online APK Decompiler: What Is It and How to Use It
If you are an Android app developer or enthusiast, you might have come across the term APK decompiler. But what is it exactly and how can you use it? In this article, we will explain what an APK file is, why you might want to decompile it, how to decompile it online, and how to open and edit the decompiled files. Let's get started!
What Is an APK File and Why Decompile It?
An APK file is a package file used to distribute and install apps on Android devices. It stands for Android Package Kit or Android Application Package. It is similar to other software packages such as APPX in Windows or DEB in Debian-based operating systems. An APK file can be built from source code written in either Java or Kotlin.
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APK File Format and Contents
An APK file is saved in a compressed ZIP format and can be opened by any ZIP file opening software. The .apk extension of such a file can be renamed to .zip and open the file in any ZIP application or extract its contents. An APK file contains all of a program's code (such as .dex files), resources, assets, certificates, and manifest file. As is the case with many file formats, APK files can have any name needed, but it may be required that the file name ends in the file extension for being recognized as such.
Benefits of Decompiling APK Files
Decompiling an APK file means reversing the process of compiling it from source code. By doing so, you can access the original Java or Kotlin source code and the resources of the app. This can be useful for various purposes, such as:
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Modifying or customizing an app's features or appearance
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Recovering lost source code of your own app
How to Decompile APK Files Online
There are many tools and websites that can help you decompile APK files online without installing anything on your device. Here are some of them:
APK Decompiler Tools and Websites
NameDescriptionURL
JADX DecompilerA command-line tool that can decompile Android .apk files to Java source code.
APKToolA tool that can extract and decode resources from the .apk file. It does not decompile original Java source code but works much faster.
Decompiler.comA website that allows you to upload and decompile .apk files online using various tools such as JADX, Procyon, CFR, Fernflower, etc.
ezyZipA website that allows you to extract .apk files online without installing anything.
Steps to Decompile APK Files Online
The steps to decompile APK files online may vary depending on the tool or website you use, but here are some general steps that you can follow:
Upload the .apk file to the online decompiler tool or website of your choice. You may need to register or sign in to use some of them.
Select the options or settings that you want to apply to the decompilation process. For example, you can choose the output format, the decompiler engine, the level of detail, etc.
Wait for the decompilation process to finish. Depending on the size and complexity of the .apk file, this may take a few seconds or minutes.
Download or view the decompiled files online. You should see a folder structure that contains the source code and resources of the app. You can also search for specific keywords or classes in the code.
How to Open and Edit Decompiled APK Files
Once you have decompiled an APK file online, you may want to open and edit it on your device. Here are some tips on how to do that:
How to Open Decompiled APK Files on Different Operating Systems
The decompiled files are usually in a ZIP format, so you can open them with any ZIP file opening software. However, if you want to view and edit the source code and resources, you will need a more advanced tool such as an integrated development environment (IDE) or a text editor. Here are some examples of tools that you can use on different operating systems:
Windows: Android Studio, Visual Studio Code, Notepad++, Sublime Text, etc.
Mac: Android Studio, Visual Studio Code, Sublime Text, Atom, etc.
Linux: Android Studio, Visual Studio Code, Sublime Text, Atom, Vim, Emacs, etc.
How to Edit Decompiled APK Files Using Android Studio or Other IDEs
If you want to edit the decompiled APK files using Android Studio or other IDEs, you will need to import them as a project. Here are some steps that you can follow:
Open Android Studio or your preferred IDE and create a new project.
Copy and paste the decompiled files into the project folder. Make sure that the folder structure matches the Android project structure.
Sync the project with Gradle and resolve any errors or dependencies that may arise.
Edit the source code and resources as you wish. You can use the code editor, the layout editor, the resource manager, etc.
Build and run the project on an emulator or a real device. You can also export it as an APK file again.
Conclusion
In this article, we have learned what an APK file is, why you might want to decompile it, how to decompile it online, and how to open and edit the decompiled files. We hope that this article has been helpful and informative for you. If you have any questions or feedback, please feel free to leave a comment below. Happy decompiling!
FAQs
What is an APK file?
An APK file is a package file used to distribute and install apps on Android devices. It stands for Android Package Kit or Android Application Package.
What is an APK decompiler?
An APK decompiler is a tool that can reverse the process of compiling an APK file from source code. It can extract and convert the original Java or Kotlin source code and resources from an APK file.
Why would I want to decompile an APK file?
You might want to decompile an APK file for various purposes, such as learning from other developers' code and techniques, modifying or customizing an app's features or appearance, fixing bugs or errors in an app, translating or localizing an app, checking for malware or security issues in an app, or recovering lost source code of your own app.
How can I decompile an APK file online?
You can use various tools and websites that can help you decompile an APK file online without installing anything on your device. Some examples are JADX Decompiler, APKTool, Decompiler.com, ezyZip, etc.
How can I open and edit decompiled APK files?
You can open and edit decompiled APK files using any ZIP file opening software or any IDE or text editor that supports Android development. Some examples are Android Studio, Visual Studio Code, Notepad++, Sublime Text, Atom, etc.