How to Create an APK: Build and Sign an Android App
To create an APK, build an Android source project with Android Studio or its Gradle build system. Renaming another file to APK does not create an Android app.
Choose what you need
Start with a complete Android project
Open the source project in Android Studio and allow its declared dependencies to resolve. Select the intended build variant and test the app on a compatible device or emulator. A downloaded APK is compiled output, not necessarily a rebuildable source project.
Build a test APK or a signed release
Use Android Studio’s APK build command for your selected variant. Its notification provides the output location. A debug build is suitable for testing; a release build needs the appropriate signing setup.
For a release, choose Generate Signed Bundle/APK, select APK and configure the intended signing key. Preserve the key securely because update compatibility depends on the signing identity.
Frequently asked questions
Can I create an APK by renaming ZIP?
No. Build a valid Android project and sign its output through a supported workflow.
Does every release APK have a signature?
Android installation requires signed APKs. Configure and verify the intended signing identity before distribution.
Sources and further reading
Opening routes checked against the references below on October 11, 2026. Device menus, software support and protection policies can change.