How to convert AAB to APK?

Use Google's bundletool: (1) Download bundletool.jar from GitHub, (2) Run: java -jar bundletool.jar build-apks --bundle=app.aab --output=app.apks --mode=universal, (3) Extract universal.apk from the output. Our interactive command builder generates the exact command for your OS.

Can I convert AAB to APK online without installing anything?

AAB to APK conversion requires bundletool (a Java application) which needs Java JDK installed locally. Our tool provides an interactive command builder and AAB file explorer to simplify the process, but the actual conversion runs on your machine.

What is the difference between AAB and APK?

APK is the installable Android app format. AAB (Android App Bundle) is Google Play's publishing format that creates optimized APKs for each device. AAB files are smaller but cannot be directly installed — they must be converted to APK first.

What is a universal APK?

A universal APK contains resources for ALL device configurations (architectures, screen densities, languages), resulting in a larger but universally compatible APK. Split APKs are optimized per device but require multiple files.

How to convert AAB to APK without Android Studio?

You only need Java JDK 8+ and bundletool.jar. Download bundletool from GitHub, then use our command builder to generate the correct command. No Android Studio installation required.

AAB to APK Converter Online Free — Convert App Bundle to APK

1. Select Your OS

2. AAB File Path

3. Output APK Path

4. Signing Configuration

Use debug keystore

5. Options

Generate universal APK Overwrite existing output

Generated Command

Prerequisites

Java JDK 8+ installed

bundletool.jar downloaded

Android SDK (optional, for device-specific)

Download bundletool

Drop AAB File to Explore

View the internal structure of any AAB file

Supports .aab files

Download bundletool

bundletool is Google's official tool for AAB operations. Download the latest version from GitHub.

wget https://github.com/google/bundletool/releases/latest/download/bundletool-all.jar

Generate APKs from AAB

Use bundletool to convert your AAB file to a set of APKs.

java -jar bundletool.jar build-apks --bundle=app.aab --output=app.apks

Generate Universal APK

Create a single universal APK that works on all devices.

java -jar bundletool.jar build-apks --bundle=app.aab --output=app.apks --mode=universal

Extract APK from APKS

The output .apks file is a ZIP archive. Extract the universal.apk from it.

unzip app.apks -d output_dir/

Install on Device (Optional)

Install the generated APKs directly to a connected device.

java -jar bundletool.jar install-apks --apks=app.apks

An Android App Bundle (AAB) is the publishing format for Android apps on Google Play. It contains all compiled code and resources but defers APK generation to Google Play, which creates optimized APKs for each device configuration.

No. AAB to APK conversion requires bundletool (a Java application) which cannot run in a web browser. You need Java JDK and bundletool installed locally. Our command builder helps generate the correct command.

This error occurs when signing information is not provided. Either use --mode=universal for unsigned testing, or provide --ks, --ks-pass, --ks-key-alias, and --key-pass parameters.

Split APKs are optimized for specific devices (based on architecture, screen density, language). Universal APK contains resources for ALL configurations, resulting in a larger but universally compatible APK.

bundletool is a JAR file, not a system command. Use it with: java -jar bundletool-all.jar. Ensure Java JDK 8+ is installed and the JAR file path is correct.