Celtx is described as 'Based on the Firefox engine, supports standards, visual storyboarding, production scheduling, publication & international languages MUI support. Free tutorials, videos & wiki are available from the site. There is a very helpful community too' and is a Novel Authoring tool in the news & books category. There are more than 50 alternatives to Celtx for a variety of platforms, including Windows, Web-based, Mac, Linux and iPhone apps. The best Celtx alternative is Manuskript, which is both free and Open Source. Other great apps like Celtx are Scrivener, Story Architect (STARC), Quoll Writer and bibisco.
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.
Tailored for extensive writing, this tool offers flexible structure and organization, integrates project outlines, supports various formats, and allows reorganization through drag and drop, ensuring research materials are within reach for efficient work.
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.
Desktop application for novel structuring, offering chapter and scene management, distraction-free text editing, detailed timeline, character interviews, multilingual support, export to publishing formats, revision history, relationship diagrams, and writing goal tracking.
Use your creative energy to focus on the content; let Final Draft take care of the style. Final Draft is the number-one selling word processor specifically designed for writing movie scripts, television episodics and stage plays.
Gingko Writer is a text editor that uses a tree-like structure to help you organize and visualize your thoughts, making it easier to outline, draft, and refine complex texts.
Untold Novel is a fresh new approach to planning your next bestseller. It helps you keep all your notes, ideas, characters, locations, and much more organized in one convenient place.
Trelby is simple, fast and elegantly laid out to make screenwriting simple. It is infinitely configurable.
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...
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.
A powerful writing environment for novelists and screenwriters
Do you have a story to tell? Unlike conventional word processors, Storyist helps you track your plot, characters, and settings, and keeps all of your writing organized and accessible—so you can focus on telling your.
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Although Manuskript looks great for novels, as far as I can tell from their features list, it does not support screenplay formatting, which is one of the main things you'd want if you're coming from Celtx.