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Open Source Celtx Alternatives

The best open source alternative to Celtx is Manuskript. If that doesn't suit you, our users have ranked more than 25 alternatives to Celtx and nine of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Celtx are bibisco, KIT Scenarist, Quoll Writer and Story Architect (STARC).

Celtx alternatives are mainly Novel Authoring Tools but may also be Text Editors or Game Development Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Celtx.
This page was last updated
Celtx iconCeltx
  38
  • FreemiumProprietary
  • Mac
  • Online
  • Android
  • iPhone
  • Android Tablet
  • iPad

Based on the Firefox engine, supports standards, visual storyboarding, production scheduling, publication &...

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  1. Manuskript icon

    Manuskript

    • Mac
    • Windows
    • Linux
    • FLATHUB
    104 alternatives to Manuskript 

    Manuskript is an open-source tool for writers, with outliner, character management, plot development, distraction-free editor, etc.

     Suggest and vote on features
    Features
    1.  Support for MarkDownManuskript supports MarkDown for document formatting.
    2.  File VersioningManuskript has a version system that lets you view and go back to older versions of the project/file/document.
    Screenshot
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    Manuskript vs Celtx opinions
    pros, cons and recent comments
    motleybits

    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.

    Negative comment ago
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    2
    jujujoly

    PERFECT! I love this app, you just need to fill the questions and click on next, ex : Title and metadata > Summary in 1 sentence > Summary in 1 paragraph > Full summary > Character profile > Plots profiles > Worlds characters > Outline > Editor. And you have a lot of other features.

    Positive comment ago
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    1
  2. bibisco icon

    bibisco

    • Mac
    • Windows
    • Linux
    • Electron / Atom Shell
    • Node.JS
    39 alternatives to bibisco 

    bibisco is a novel writing software that helps you to write your story, in a simple way.

     Suggest and vote on features
    Features
    1.  Ad-freebibisco doesn't contain any form of external advertising.
    2.  Portablebibisco can be used from a USB stick or similar with no prior installation.
    Novel architecture
    Chapter detail
    Tags
    bibisco vs Celtx opinions
    pros, cons and recent comments
    motleybits

    Celtx is a dedicated screenwriting program, while this is designed for writing novels. The formatting and processes of each are significantly incompatible.

    Negative comment ago
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    1


  3. KIT Scenarist icon

    KIT Scenarist

    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    26 alternatives to KIT Scenarist 

    KIT Scenarist is a free and open source application for creating screenplays on desktops and commercial on mobiles.

     Suggest and vote on features
    Features
    1.  Real time collaborationMultiple users can work together in KIT Scenarist simultaneously.
    Add research document
    Corkboard
    Screenplay editor
    KIT Scenarist vs Celtx opinions
    Almost everyone thinks KIT Scenarist is a great alternative to Celtx.
    Guest

    Portable, clean and simple. Love it !

    Positive comment ago
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    1
  4. Quoll Writer icon

    Quoll Writer

    54 alternatives to Quoll Writer 

    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.

    Screenshot
    Quoll Writer vs Celtx opinions
    pros, cons and recent comments
    motleybits

    Celtx is a dedicated screenwriting program, while this is designed for writing novels and prose. The formatting and processes of each are significantly incompatible.

    Negative comment ago
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    2
  5. Story Architect (STARC) icon

    Story Architect (STARC)

    • Mac
    • Windows
    • Linux
    • Chrome OS
    30 alternatives to Story Architect (STARC) 

    A smooth yet powerful screenwriting experience for devoted authors. With only wanted features and native workflow it runs faster than all your previous apps combined.

     Suggest and vote on features
    Features
    1.  LightweightStory Architect (STARC) consumes less device resources compared to similar apps.
    2.  Spell CheckingStory Architect (STARC) can detect and correct all types of grammar and spelling mistakes.
    3.  Real time collaborationMultiple users can work together in Story Architect (STARC) simultaneously.
    4.  PortableStory Architect (STARC) can be used from a USB stick or similar with no prior installation.
    5.  AutocompletionStory Architect (STARC) can predict and complete the rest of a word or phrase you're typing.
    6.  Support for ThemesYou can use themes and templates to change the look and feel of Story Architect (STARC).
    7.  Distraction-freeStory Architect (STARC) has a distraction-free mode for when you need to focus.
    8.  Dark ModeStory Architect (STARC) supports dark mode for comfortable usage in low light conditions.
    9.  Hierarchical StructureOrganize your notes, pages, documents, etc., hierarchically with Story Architect (STARC).
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  6. Trelby icon

    Trelby

    • FreeOpen Source
    • Windows
    • Linux
    22 alternatives to Trelby 

    Trelby is simple, fast and elegantly laid out to make screenwriting simple. It is infinitely configurable.

     Suggest and vote on features
    Features
    1.  WYSIWYG SupportTrelby integrates a WYSIWYG editor to edit the look and content of a document, page, or file.
    Discontinued

    The project is no longer developed. Last version, 2.2, released in September 2012, can be still downloaded from the official website.

    Trelby
    Screenshot
    Trelby vs Celtx opinions
    Most users think Trelby is a great alternative to Celtx.
  7. Nulis icon

    Nulis

    • Windows
    • Linux
    • Online
    58 alternatives to Nulis 

    Nulis makes the process of outlining your stories, articles, or books easy, fun, and convenient.

     Suggest and vote on features
    Features
    1.  No registration requiredYou can use most of the features in Nulis without registration.
    Screenshot
    Screenshot
  8. Scrite icon

    Scrite

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    5 alternatives to Scrite 

    Scrite is an open-source app to make screenplay writing fun, engaging and productive. You will always be able to write for free using the Scrite app.

     Suggest and vote on features
    Features
    Screenshot
  9. Page 2 Stage icon

    Page 2 Stage

    10 alternatives to Page 2 Stage 

    Page 2 Stage is screenwriting software designed expressly for people writing screenplays, scripts, and plays. It provides numerous features needed by screenwriters not found in standard word processors.

     Suggest and vote on features
    Features
    Discontinued

    Discontinued

    Screenshot
Showing 9 of 9 alternatives
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