Download [portable] Uber-apk-signer.jar Jun 2026

Overwrites the original APK file instead of creating a new -aligned-signed.apk file. --help Displays the complete help menu with all available flags. Troubleshooting Common Errors "Java is not recognized as an internal or external command"

The tool will create a new file in the same directory named app-aligned-signed.apk . 2. Batch Signing Multiple Files

Save the file to a convenient location on your computer, such as C:\AndroidTools\ or your project directory. How to Use Uber APK Signer (Examples) download uber-apk-signer.jar

When releasing an app to the Google Play Store, you must use your own production keystore. Pass your keystore credentials using these flags:

keytool -genkey -v -keystore my-release-key.jks -alias myalias -keyalg RSA -keysize 2048 -validity 10000 Overwrites the original APK file instead of creating

Install the latest OpenJDK and ensure the bin directory is added to your system's PATH variable. "Zip-align failed"

To use uber-apk-signer.jar, you can download it from the official Android SDK repository or from other reliable sources. Once downloaded, you can use the tool from the command line, specifying the APK file, keystore, and other parameters as needed. Pass your keystore credentials using these flags: keytool

Point to a specific zipalign executable if you don't want to use the built-in one. Why Use Uber APK Signer Over Manual Signing?

Download uber-apk-signer.jar: The Ultimate Guide to Signing Android APKs

If you have a folder full of unsigned APKs, you can sign them all in one go: java -jar uber-apk-signer.jar --apks /path/to/apk/folder Use code with caution. 3. Signing with Your Own Keystore