Apple just released the 1st beta of iOS 12. Use this link to install it if you haven't already installed it.
Good news! There are two jailbreak solutions are available for iOS 12 right now.
1) Houdini Semi Jailbreak
Abraham Masri has released iOS 12 Semi Jailbreak for the 1st time with his IPA based semi Jailbreak method. Houdini is compatible with iOS 12 beta, iOS 11.3.1 to iOS 11, iOS 10.3.2 to iOS 10.
You can download an unofficial version of the IPA even if he didn't release it officially.
You can install some awesome Jailbreak apps, themes and features using this Houdini semi Jailbreak app. But It doesn't allow you to install Cydia.
2) Anzhuang Jailbreak App Installer
ru$za updated Anzhuang to install Jailbreak apps for iOS 12. Cydia and popular Jailbreak apps are now compatible with iOS 12 with Anzhuang. You cannot install Anzhuang directly to your iPhone or iPad. Install the English version of Anzhuang using zJailbreak or Xabsi 3rd party app stores.
1) Houdini Semi Jailbreak
Compatible Devices -
iPhone X, iPhone 8 & 8 Plus, iPhone 7 & 7 Plus, iPhone 6S & 6S Plus, iPhone 6 & 6 Plus,iPhone SE, iPhone 5s, iPod Touch 6G iPad Mini 2, iPad Mini 3, iPad Mini 4, iPad Air, iPad Air 2, iPad Pro
Cydia Impactor - Download the latest version of Cydia impactor from their official website according to your computer OS.
Apple ID - You must provide Apple ID and password during the Houdini IPA installation.
Backup your device with iTunes (Optional)
Create a separate Apple ID for Houdini Installation process (Optional)
Houdini iOS 12 Semi Jailbreak IPA - Download unofficial Houdini IPA from here.Use it at your own risk.
Step 01 - Click above links to download Houdini Semi Jailbreak IPA and Cydia Impactor according to your computer OS.
Step 02 - Connect your iOS 12 device to the Computer and Open Cydia Impactor.
Step 03 - Drag and drop the Houdini IPA into the Cydia impactor.
Step 04 - Provide the device passcode to sideload the IPA to your iOS 12 device.
Step 05 - Finally Houdini app will be available on your device homescreen.
Congratulations. Now you have installed the Houdini on your iOS 12 iPhone / iPad.
Popular Features of Houdini
These are the most popular iOS 12 Jailbreak features of Houdini.
Disable system updates.
Hide app icon labels and respring the device.
Theme for the keys on the passcode screen.
Changing the badge count colour.
Blocking System-wide ads.
Change device display resolution.
Changing the Emoji fonts.
Themes for Sliders and Control center icons.
Houdini developed by software developer/researcher Abraham Masri @cheesecakeufo. It initially released for the iOS 10. X (except 10.3.3), and upgraded the compatibility of Houdini for iOS 11 to iOS 11.1.2 using Ian beer exploit. Also he recently updated Houdini Semi Jailbreak as Beta 3 to install jailbreak apps for iOS 11.2 to iOS 11.3.1.
He has a good reputation in the jailbreak community. As well as, Apple credited him with finding vulnerabilities in iOS 11.3 as well as 11.2 to iOS 11.2.2. He owns few other jailbreak tools such as saïgon for iOS 10.2.1 and to.panga for iOS 11 to 11.1.2 (developers only).
You must visit above links from the default Safari web browser to install above app stores.
You must provide your device passcode to complete the installation process.
Step 01 - Tap the above zJailbreak link or Xabsi link to download Anzhuang to your iOS 12 device. Then click the “Install Now” and Enter device passcode.
Step 02 - Then find Anzhuang from zJailbreak or Xabsi. Tap the install button and enter your iPhone / iPad passcode and install the Anzhuang.
Step 03 - Now you can install jailbreak apps on your iOS 12 device using Anzhuang.
Russian hacker ru$za found this method for the very first time and Chinese hacking team upgraded the method to Anzhuang app. It is based on the developer code extraction method. This Chinese team continuously updates the Anzhuang app against every iOS releases.
Compatible Previous versions
Anzhuang initially released for iOS 10.2. Since then it was the best jailbreak app installer for every iOS versions.
Anzhuang is compatible with the upcoming iOS 11.4.1 beta & iOS 11.4 latest version. Currently Anzhuang is the best jailbreak app installer for iOS 11.4.1 & iOS 11.4.
As well it is installed jailbreak apps on iOS 11.3.1 & iOS 11.3 as well as iOS 11.2.6 / iOS 11.2.5 because there is no untethered or semi-tethered jailbreak for these versions. Also, It has no public jailbreak for iOS 11.2 to iOS 11.2.2 versions too.
Anzhuang is compatible with these versions too. Anzhuang is compatible with iOS 11.1.2 - iOS 11 too. However, it has Electra jailbreak & LiberiOS Jailbreak for these versions.
Also Anzhuang compatible with older versions such as iOS 10.3.3, iOS 10.3.2, iOS 10.3.1, iOS 10.3, iOS 10.2.1, iOS 10.2. Also, it is available DoubleH3lix, Meridian jailbreak G0blin Jailbreak and H3lix jailbreak for these iOS 10.X versions.
More about iOS 12 Jailbreak
iOS 12 Scams - So far, there is no any semi-tethered or untethered Jailbreak for iOS 12. Therefore some websites/YouTubers offer you iOS 12 semi-tethered or untethered Jailbreak download links. However, it should be fake. Always use trusted sources to download and get correct information about iOS 12 jailbreak tools.
Popular Jailbreak Approaches
Electra Jailbreak for iOS 12 by Cool Star : Electra tool is the most recent public Jailbreak tool which is released to Jailbreak iOS 11 to iOS 11.1.2. At this time developer working hard to upgrade the too for iOS 11.3.1 version. Cool star always tries to offer something new to the jailbreak community. So we can keep hopes about iOS 12 Electra Jailbreak.
Yalu Jailbreak for iOS 12 by Luca Todesco : Luca was a very famous character in the Jailbreak community. But he did not release any Jailbreak too after Yalu102 for iOS 10 - iOS 10.2 versions. Luca is an active member of Jailbreak field by now. He participates many Mobile Security/Hacking conference and delivers the speech about the latest hacking method. Also, he finds vulnerabilities in iOS versions. Still, Jailbreak hackers apply Luca’s method when developing Jailbreak tool. However, we can not expect Yalu jailbreak tool for iOS 12 by Luca at this point.
Pangu Jailbreak for iOS 12 by Pangu Team : Pangu tool was the most reliable tool in the Jailbreak history. Their last pangu tool released for iOS 9.3.3 and after that, they did not attend any iOS version such as iOS 10.X and iOS 11.X versions. However, they are organizing iOS hacking/security conference. The world famous MOSEC is organizing by Pangu team. Whatsoever they will not attend for iOS 12 jailbreak.
Keen Lab successfully demonstrated iOS 12 for Cydia
Keen Lab published one of the videos to show the capability of iOS 12 Jailbreak. They have successfully installed Cydia for iOS 12 beta 1 running iPhone X. Lian Chan installed Cydia using Keen Lab app. So, according to the video we can guess it is semi untethered jailbreak.
Watch following video
Keen Lab is always attending latest iOS version jailbreak as soon as Apple release it. They were credited as the first team who Jailbreak iOS 11 beta stage. Since then they have to jailbreak many iOS versions such as iOS 10.3.2, iOS 11.1.1 and iOS 11.3.1. However, they never released any jailbreak tool to the public.