This is a rather simple tweak for the PC version of Witcher 3 that enables the debug console in the game. The debug console was available till it got broken after the v1.05 patch was released. However, this tweak renables it. By enabling the debug console, you can use different console commands. You can check out the entire list of console commands that can be used in Witcher 3 here.
Installing this tweak is rather easy. All you need to do is download the file from here and extract the content in The Witcher 3 Wild Hunt\bin\x64 and once you have pasted the content, run the game and press the ‘~’ key or the ‘F2’ key in game. In order to enable free camera in the game, simply place ‘F1’.
That’s all, folks. You now have access to debug console in Witcher 3.