Team Win Recovery Project (TWRP), pronounced "twerp",[4] is an open-source software custom recovery image for Android-based devices.[5][6] It provides a touchscreen-enabled interface that allows users to install third-party firmware and back up the current system, functions usually not supported by stock recovery images.[6][7][8][9] It is, therefore, often installed when flashing, installing, or rooting Android devices,[10] although it does not require a device to be rooted before installation.