Celtx is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Manuskript, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Celtx and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Celtx are Story Architect (STARC), Quoll Writer, Trelby and Scrite.
Open-source software offering a hierarchical outliner, distraction-free editor, character management, plot tools, Snowflake method support, section multi-organization, customizable writing workflows, cross-platform availability, and export to standard formats.
France
EU
A smooth yet powerful writing experience for devoted authors. With only wanted features and native workflow it runs faster than all your previous apps combined.
Focus on your words not the interface. Quoll Writer is a writing application that helps you focus on your words. Clean and uncluttered. Feature rich. Features are where you would expect them to be.
Australia
Trelby is simple, fast and elegantly laid out to make screenwriting simple. It is infinitely configurable.
United States
Scrite is an open-source screenwriting application based in Bengaluru, India. Unlike most screenwriting tools designed primarily for English, Scrite natively supports Indian language screenwriting; at launch it supported 11 Indian languages including Tamil, Malayalam, Kannada...
India
Fade In Professional Screenwriting Software is a complete application for writing motion picture screenplays, including tools for outlining, organizing, and navigating, plus extensive screenplay formatting and robust tools for managing rewrites and revisions.
Canada
Rayuela Editor is moderm, privacy-focused writing environment designed for long-form fiction (novels, screenplays, and theses). It bridges the gap between the structural power of Scrivener and the portability of modern web technology, wrapped in a native desktop application.
WriterSolo is a free version of WriterDuet professional scriptwriting software that is not synced to any servers.
United States
Offers novel writers an organized workspace to structure chapters, develop characters, manage locations, arrange scenes, track timelines, add notes, conduct narrative analysis, and export manuscripts, with mobile support and cloud synchronization features.
ItalyEU
SceneWeaver is a writing and project organisation tool for novels, research, role-playing campaigns, scripts, and other large documents.
United Kingdom
Nulis makes the process of outlining your stories, articles, or books easy, fun, and convenient.
FLIX is a visual story development tool for feature film, TV production, games, and more. Designed to promote fast-paced creative collaboration, FLIX removes the technical barriers that can cause frustration and slow you down.
United Kingdom
