Since the release of the iOS 12, there has been developments and work being done by by jailbreak developers to pull out a working jailbreak tool for iOS 12 firmware. And with every new update iOS keeps addressing the back doors that let users jailbreak their device. Many people have not updated their devices from iOS 11.4 because the working jailbreak, Electra, is out. But those who are on iOS 12 and iOS 12.1.2, rootlessJB is out in the public.
You can download rootlessJB ipa file on your iPhone, iPad or iPod using cydia impactor. And as the name suggests, it is a root less jailbreak and does not work as an ordinary typical jailbreak. You do not have full root access with this jailbreak so you won’t be able to install cydia tweaks directly. Installing tweaks will require of hectic approach, which is manually installing the files and libraries of a tweak using Filza file manager mainly in order to get work.
rootlessJB iOS 12, 12.1.2
You will find instructions to download and install rootlessjb ipa for iOS 12, 12.1, 12.1.2 in this tutorial.
How to Install rootlessJB iOS 12, 12.1.2 iPA file on iPhone, iPad
RootlessJB iPA Download
Download the ipa file from below links. If the link is not working then inform us in the comment section below.