It is highly recommended to use official, trusted methods for signing APKs, such as:
Included in the Android SDK Build-Tools , which is the standard, command-line way to sign apps [1]. Recommendation: Download Auto sign apk
Based on a search for "Download Auto sign apk", this appears to be a tool designed to automatically sign Android applications (APKs) with a digital certificate, which is required for installation on Android devices [1]. It is highly recommended to use official, trusted
APK signing tools from random websites, forums, or unknown developers. trusted methods for signing APKs
The official IDE for Android development, which has built-in, secure signing capabilities [1].