PSFree is a WebKit exploit for PS4 Firmware 8.03.
PSFree is free software. See COPYING for the copyleft information.
PSFree's license is GNU-AGPL-3.0-or-later.
Here is the source code of this program:

HTML files:
index.html
about.html
JavaScript files:

alert.mjs	GNU-AGPL-3.0-or-later	download
config.mjs	GNU-AGPL-3.0-or-later	download
exploit.mjs	GNU-AGPL-3.0-or-later	download
send.mjs	GNU-AGPL-3.0-or-later	download
rop/800.mjs	GNU-AGPL-3.0-or-later	download
rop/950.mjs	GNU-AGPL-3.0-or-later	download
rop/850.mjs	GNU-AGPL-3.0-or-later	download
rop/900.mjs	GNU-AGPL-3.0-or-later	download
module/chain.mjs	GNU-AGPL-3.0-or-later	download
module/int64.mjs	GNU-AGPL-3.0-or-later	download
module/constants.mjs	GNU-AGPL-3.0-or-later	download
module/memtools.mjs	GNU-AGPL-3.0-or-later	download
module/utils.mjs	GNU-AGPL-3.0-or-later	download
module/rw.mjs	GNU-AGPL-3.0-or-later	download
module/offset.mjs	GNU-AGPL-3.0-or-later	download
module/mem.mjs	GNU-AGPL-3.0-or-later	download

kpatch/ files:
kpatch/utils.h
kpatch/script.ld
kpatch/Makefile
kpatch/80x.c
kpatch/types.h