Celtx

Celtx is a cloud-based software platform for pre-production and scriptwriting, used across film, television, theater, and digital media. It provides tools for writing and formatting scripts, developing story concepts, and collaborating with teammates, together with production planning capabilities that help organize breakdowns, shot lists, budgeting, and scheduling. The platform supports an end-to-end workflow from idea to shoot, featuring cloud storage, version history, task assignments, and real-time communication to enable distributed teams to work together.

Core features include scriptwriting with industry-standard formatting, outlining and note-taking for development, and an index card or storyboard-inspired planning system. It also offers production breakdowns, budgeting and cost estimation, scheduling and calendars, call sheets, and reporting. The platform emphasizes team collaboration through file sharing, permissions, and project dashboards, making it suitable for independent projects as well as larger productions.

Originating as a scriptwriting tool, Celtx later expanded into a cloud-based pre-production platform and added integrated production-management modules. It has been adopted by writers, filmmakers, production companies, and educational programs to plan, organize, and manage media projects from concept through delivery. Celtx is accessible via web browsers and mobile apps, enabling cross-platform collaboration.