Best App for Writing a Book Free in 2026: 9 Apps Compared

Reedsy Studio is the closest free option to an all-in-one book tool. You can plan chapters, write scenes, set writing goals and format the book for ebook or print without paying for the core editor. That combination is rare at no cost, and it suits a first-time author who wants a professional-looking export without learning a separate formatter. The main limit is that it runs in a browser, so you need an internet connection to work. There is also no mobile app for offline drafting. If you write mainly on a laptop with reliable internet, that limit is easy to live with. If you write on trains or in places without Wi-Fi, pair Reedsy with an offline editor for drafting and use Reedsy for formatting.

Google Docs is the simplest free starting point, and its strength is collaboration. Co-authors, editors and beta readers can comment and suggest changes in the same document, and version history makes it easy to restore an earlier draft. Autosave removes the fear of losing work after a crash, which matters on a long project. For a novel, Google Docs is less structured than a planner. You will need headings, a table of contents and separate documents or sections to keep chapters organised, and a very long manuscript can feel slow. Docs works best for drafting, sharing and editing, with a planner or formatter handling structure and final export if needed.

LibreOffice Writer is a free, offline word processor that can handle a full book manuscript. It supports styles, headings, tables, footnotes and page layout, and it opens and saves common document formats used by editors and publishers. For writers who distrust cloud-only tools, local files and full control are real advantages. Writer does not offer scene cards, timelines or character sheets, so novel planning needs a separate system, such as a notebook, a spreadsheet or a planner app. That split is fine for many authors, especially those who already know their story structure. Writer is best for writers who want a dependable, free Word-style editor without a subscription.

FocusWriter removes menus, notifications and clutter so the page itself becomes the focus. You can set daily word goals, track progress and write in full screen, which helps writers who get distracted by a busy interface. It is free, offline and light on system resources, so it runs well on older machines. It is a drafting tool, not a book manager. You will not get scene planning, character databases or polished ebook formatting inside FocusWriter. Use it to get words on the page each day, then move the draft to a planner or formatter for structure and export. That two-tool workflow suits writers who separate drafting from editing.

Obsidian is a note app that can become a powerful book planner when used well. Each character, location, scene and research note can be a linked page, so you can move from a plot outline to a character sheet in one click. Files are stored locally in plain text, which gives you control over backups and long-term access. The learning curve is the trade-off. Obsidian does not come set up as a novel tool, so you need to build folders, templates and links yourself, or use community plugins. Writers who enjoy building a personal system will like that freedom. Writers who want a ready-made novel structure may prefer yWriter or Bibisco instead.

yWriter breaks a novel into chapters and scenes, which is exactly how many fiction writers think about a book. You can track viewpoints, characters, locations and items per scene, and see word counts for each part of the story. That structure helps when a plot has many threads and you need to check where a character last appeared. The interface looks dated, and final formatting still needs a word processor or formatter. yWriter is not trying to be pretty, it is trying to keep a complex novel organised. For a writer with a long, multi-viewpoint story, that focus is worth more than a modern design.

Bibisco guides you through novel planning with sections for premise, characters, locations, chapters and scenes. That guided structure helps new novelists who know they need planning but are not sure where to start. Questions and prompts in each section encourage you to define motives, conflicts and settings before you draft too far ahead. The full structure can feel like a lot of work if you prefer to discover the story as you write. Bibisco suits planners more than discovery writers, and some advanced features sit in a paid version. If you like a clear plan before drafting, Bibisco gives you that plan in a free, organised form.

Wavemaker is a free, browser-based writing tool with card planning for novels. You can arrange plot cards, write chapters and keep notes in one workspace, without installing software. It also works offline in the browser once loaded, which helps writers who move between devices or who use a Chromebook. Support and long-term development are smaller than for Google Docs or LibreOffice, so backups matter even more. Export your work regularly to a standard document format. Wavemaker suits writers who want a free, card-based planner in the browser and who are happy to keep their own backups.

Sudowrite is the AI option on this list, and it is best used as a helper rather than a ghostwriter. It can suggest descriptions, expand a scene, offer alternative phrasing or help you move past a block. That help can speed up a draft, especially for writers who know the story but struggle with a particular passage. The trial is limited, and the paid plans cost more than a free editor. AI output also needs editing, because it can drift from your characters, tone and plot. Use Sudowrite to support your own writing, keep your draft as the source of truth, and check any AI suggestions against your story before you keep them.