MiX Signer

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MiX Signer is a very helpful add-on for the MiXplorer file manager that allows users to sign various archive types. Read more about MiX Signer  

The MiXplorer file manager is one of the most complex solutions for people that want and need complete access to their Android OS. Furthermore, the application is greatly enhanced by various add-ons that bring extra layers of functionality.
 
The MiX Signer is such an add-on, and it provides users with the means to sign various containers, such as APK, Zip, or Jar. It’s also possible to create, view, and edit KeyStores (JKS, BKS, PKCS12, UBER formats). The best part about it is that it does not require root access.