KeyStoreViewer: App Signatures1.3.1

KeyStore Viewer lets you inspect an Android app’s signing data and see its MD5, SHA1, and SHA256 signature hashes together with the associated public-key information. It gathers these values in one place so you can check or record the signature details connected with a particular app. The compact presentation is useful when filing signing data or reviewing an application’s identity during routine system work.

The utility is intended for Android users who need to examine app signatures rather than open the apps themselves. Developers, testers, support technicians, and anyone documenting APK details can use the displayed hashes and public key as reference values for a specific application. Its focus on several common digest values plus public-key details distinguishes it from tools that expose only one signature identifier.

KeyStore Viewer 1.3.1 runs on Android 7.0 and later and targets the arm64-v8a architecture. It is open-source software, and the underlying project is built with Kotlin Multiplatform, sharing code through a Compose Multiplatform module while also defining Android and desktop targets. The Android application uses that shared module, making the viewer part of a project structured for platform-specific code alongside common functionality.