java -jar apksigner.jar verify --verbose your_apk.apk

In the world of Android development and customization, ensuring the integrity and security of an APK file is paramount. Whether you are a seasoned developer releasing an app on Google Play or an enthusiast modifying an existing application, you need a reliable way to sign your APK files. Enter – the official, command-line tool provided by Google through the Android SDK Build Tools.

If you need to change your signing key for an existing app (allowing seamless updates), use:

You must have Java installed. Note that newer versions of Build-Tools (30.0.0+) often require Java 9 or higher .

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