Magisk is a suite of open source software for customizing Android, supporting devices higher than Android 5.0.

Here are some feature highlights:
MagiskSUProvide root access for applications
Magisk ModulesModify read-only partitions by installing modules
MagiskHideHide Magisk from root detections / system integrity checks
MagiskBootThe most complete tool for unpacking and repacking Android boot images
Magic Mount
Allow you to do any system (vendor) modification without actually tampering the partitions.
Anything can be loaded with Magisk systemless-ly!
MagiskSUOpen Source Root Solution
Root your device with MagiskSU, based on phh's Superuser, which is based on CM Superuser.
Magisk Manager
MagiskSU Root Management, Upgrade Magisk, Manage MagiskHide lists
Manage, Upgrade, Download, Install Magisk Modules from the community driven online Magisk Module Repo.
MagiskHide
Hide Magisk from detectionsGoogle SafetyNet, enterprise / bank system integrity checks, game tamper checks etc.
Resetprop
Allow you to do any modifications to system properties, including read-only props.
This is also used along with magiskhide to trick various device status sent from the bootloader
Miscellaneous
(Optional) Remove AVB 2.0, dm-verity, forceencrypt.
Unlock partitions blocks to support remount to rw