The following is a list of simple writing tools, but I’d really recommend just getting some paper and a pen or pencil and going lo fi with your writing.
Remove the interference of the medium and allow your brain simply to catch the ideas.
FREE WRITING TOOLS
Zen pen is the writing cousin of Alchemy. A super simple and lovely clutter-free interface that lets you just write.
Trelby is free screenwriting software that is very intuitive and easy to use. It formats your script or screenplay as you type it.
Apache Open Office