Runs in the browser

Open WebUI

AI writing assistants

Self-hosted chat UI for local and remote LLMs

Stars

★ 156k

Licence

BSD-3-Clause

Updated

3 days ago

Alternative to Sudowrite

LanguageTool

Grammar & editing

Open-source grammar and style checker with self-hosting option

Stars

★ 15.2k

Licence

LGPL-2.1

Updated

today

Alternative to Grammarly, ProWritingAid

ONLYOFFICE Docs

Grammar & editing

Open-source office editors with strong DOCX compatibility

Stars

★ 7k

Licence

AGPL-3.0

Updated

5 days ago

Alternative to Microsoft Word

Twine

Worldbuilding & plotting

Open-source tool for nonlinear interactive stories

Stars

★ 2.9k

Licence

GPL-3.0

Updated

12 days ago

Alternative to Plottr, Campfire

WaveMaker

Novel & long-form writing

Browser-based novel planner and writer with cards and manuscript view

Stars

★ 19

Licence

GPL-3.0

Updated

7 months ago

Alternative to Scrivener, Plottr

Atticus

Formatting & publishing

Writing plus ebook and print formatting in one paid app

Licence

Proprietary

Status

Proprietary

Alternative to Vellum, Scrivener

Campfire Writing

Worldbuilding & plotting

Modular worldbuilding and writing suite for fiction authors

Licence

Proprietary

Status

Freemium

Alternative to World Anvil, Plottr

Browser scriptwriting and pre-production with free and paid plans

Licence

Proprietary

Status

Freemium

Alternative to Final Draft, WriterDuet

Dabble

Novel & long-form writing

Cloud novel app with plotting, goals and manuscript tools

Licence

Proprietary

Status

Proprietary

Alternative to Scrivener, Plottr

Fountain tools

Screenwriting

Plain-text screenplay format with many free editors

Licence

MIT (format spec)

Status

Open source

Alternative to Final Draft, Fade In

Hemingway Editor

Grammar & editing

Readability highlighter for clearer, shorter sentences

Licence

Proprietary

Status

Freemium

Alternative to Grammarly, ProWritingAid

LivingWriter

Novel & long-form writing

Cloud manuscript app with outlining, boards and collaboration

Licence

Proprietary

Status

Freemium

Alternative to Scrivener, Dabble

NovelAI

AI writing assistants

Subscription AI storytelling and image tools for fiction

Licence

Proprietary

Status

Proprietary

Alternative to Sudowrite

NovelCrafter

AI writing assistants

AI-assisted fiction workshop with codex and prompts you control

Licence

Proprietary

Status

Proprietary

Alternative to Sudowrite, Scrivener

Cloud novel workspace with goals, courses and manuscript tools

Licence

Proprietary

Status

Freemium

Alternative to Scrivener, Dabble

Plottr

Worldbuilding & plotting

Visual timelines and plot outlines for novels and series

Licence

Proprietary

Status

Proprietary

Alternative to Scrivener

ProWritingAid

Grammar & editing

Deep manuscript editing reports for fiction and non-fiction

Licence

Proprietary

Status

Freemium

Alternative to Grammarly, Hemingway Editor

Reedsy Book Editor

Novel & long-form writing

Free browser manuscript editor from Reedsy with clean export

Licence

Proprietary

Status

Freemium

Alternative to Scrivener, Microsoft Word

World Anvil

Worldbuilding & plotting

Worldbuilding wiki and setting bible for fiction and RPGs

Licence

Proprietary

Status

Freemium

Alternative to Campfire, Notion