Trelby is described as 'Is simple, fast and elegantly laid out to make screenwriting simple. It is infinitely configurable' and is a Story Writing tool in the news & books category. There are more than 25 alternatives to Trelby for a variety of platforms, including Web-based, Windows, Mac, iPhone and iPad apps. The best Trelby alternative is Manuskript, which is both free and Open Source. Other great apps like Trelby are Scrivener, Story Architect (STARC), GrinTale and Aevon.
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.
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.
Celtx is the standard free alternative, and one of the best alternatives other than Final Draft.
Campfire provides a one-stop-shop for novelists: organizational and writing tools (Campfire Write), a hub of writing resources (Campfire Learn), & a writing and reading platform for building an audience and sharing your work (Campfire Explore).
With Highland, crafting a perfectly-formatted screenplay is as simple as writing an email. Just type. Highland will make it look good.
SceneWeaver is a writing and project organisation tool for novels, research, role-playing campaigns, scripts, and other large documents.
WriterSolo is a free version of WriterDuet professional scriptwriting software that is not synced to any servers.
Distraction-free screenwriting software featuring real-time collaboration, automated versioning, data backup, comprehensive import and export options including Final Draft, PDF, Word, and Fountain formats, and tools for outlining, structure, and revision management.
Beat is an elegant screenwriting app for macOS and iOS, created by a screenwriter for screenwriters. And best of all — Beat is fully open source!
Fountain is inspired by Markdown syntax, intended as a simple markup syntax for writing, editing and sharing screenplays in plain, human-readable text.
Trelby is for TV, Scriptorium is for books.
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It is the most complete of all those listed. Constantly being updated.