Open source screenwriting software (Pull requests are welcome!).

LibreScript uses a markup language called ScriptDown and has the following commands:

• title: for writing the Title of the story
• subtitle: for writing subtitles in the cover
• <<< to manually make a page-break
• # to write the scene header
• = can be used for action, scene header, plane or description
• -- to write the character name
• _ to write the dialogue of the character
• { and } for parenthesis direction
• & for transitions

Example of scriptdown:

# 1. room - ext. - day.
= A character comes into the room and proceeds to talk
-- character
_ I am a character, and this is my dialogue.

This is a code to make a simple cover:

title: Story title
subtitle: Author name
<<<		

And when the script is exported to PDF it would look like this: