Find the signing information you need for Android apps. KeyStoreViewer helps developers inspect signing certificates from installed apps and APK files. View MD5, SHA-1, and SHA-256 certificate fingerprints and public key information without digging through command-line output. KEY FEATURES • Inspect the signing information of installed apps. • Open an APK file to view its signing certificates. • View MD5, SHA-1, and SHA-256 certificate fingerprints. • View public key information, including the modulus for RSA keys. • Copy fingerprints and public key values, or share signature details. BUILT FOR EVERYDAY DEVELOPMENT • Find the certificate fingerprints required by APIs and third-party SDKs. • Retrieve signature and public key information for app registration. • Investigate signing differences between debug and release builds. Certificate fingerprints identify signing certificates. They are not APK file checksums, and a matching signature alone does not guarantee that an app is safe.