uber-apk-signer.jar is a Java-based tool used to sign and verify APK (Android Package File) files. It's a popular choice among Android developers and enthusiasts for signing APKs with custom keys, testing APK signatures, and verifying the authenticity of signed APKs.
Download uber-apk-signer.jar You can download the latest version of uber-apk-signer.jar directly from the official GitHub releases page Current Version: 1.3.0 (as of early 2026). Once downloaded, run it via terminal with: java -jar uber-apk-signer.jar --apks /path/to/your/apks It automatically handles (v1 to v4 schemes), and verification in one step. The Code-Bound Crow: A Story
The tool will return a status message confirming if the signature and alignment are valid. Why Use Uber APK Signer?
He dragged the file into his project directory, opened a terminal, and typed: java -jar uber-apk-signer.jar --apks /path/to/my-modded-app.apk
To ensure the file hasn’t been tampered with, check its SHA-256 checksum. The release page will list checksums (e.g., SHA256.txt ). Verify using your operating system’s tools:
download the source code ( Source code.zip ) unless you intend to compile it yourself. Click on the .jar file to start the download.
file, making it platform-independent as long as a Java Runtime Environment (JRE) is installed. A typical command to sign all APKs in a folder is as simple as: java -jar uber-apk-signer.jar --apks /path/to/apks Saves Time : Replaces multiple manual commands with one. : No official graphical user interface (GUI). : Built on official Google signing implementations. Java Dependency : Requires Java to be installed on the system. Batch Processing : Effortlessly handles dozens of APKs at once. Where to Download