Celtx software is a comprehensive pre-production tool used for scripting, storyboarding, and scheduling. It offers a collaborative platform for teams to work together on projects, with features like real-time collaboration and project sharing. Celtx also includes a database of industry-standard templates for various types of projects, like films, TV shows, and documentaries, making it easy to get started on a project. The software also includes budgeting and scheduling tools to help with project management.