This is an add-on for the MiXplorer file manager v6.24.1+ to Sign Apk, Zip and Jar files using built-in or custom certificates.
You can also create, view and edit your KeyStores (JKS, BKS, PKCS12, UBER formats).
It does not require root privileges.
For more information see the website: forum.xda-developers.com/showthread.php?t=1523691
If you have any idea or suggestion or there is a bug, feel free and send me an email to MiXplorer@gmail.com.

From version MiX Signer 1.2:

Tiny improvements for the next version of MiXplorer.

All versions
MiX Signer 1.2
January 25, 2018

Version:1.2

Uploaded:January 25, 2018 at 5:13PM UTC

File size:0.52 MB

Downloads:18,992

MiX Signer 1.1
July 31, 2017

Version:1.1

Uploaded:July 31, 2017 at 12:58AM UTC

File size:0.5 MB

Downloads:3,725