Plumelin is more coherent if…
The project extends beyond its documents
The manuscript, outline, characters, places, relationships, feedback and output formats need to live in one studio, even offline.
Explore the Plumelin studioPlumelin and Ellipsus both take collaboration seriously. Ellipsus provides unlimited documents, drafts and collaborators plus real-time co-editing for free; it also stands out for parallel drafts, themes and AO3 publishing. Plumelin brings co-editing, roles, presence, collaborator following, comments, suggestions and decisions into a local-first studio that structures and produces the whole book.
Both tools take collaborative work seriously. The difference is what they organise: Ellipsus starts from a document and its variants; Plumelin starts from the book, its scenes and its world.
Plumelin is more coherent if…
The manuscript, outline, characters, places, relationships, feedback and output formats need to live in one studio, even offline.
Explore the Plumelin studioEllipsus is more coherent if…
You want to collaborate for free without document, draft or participant limits, create several versions of a text, then compare and merge proposals.
See EllipsusEllipsus is a serious alternative for a workflow centred on document variants. Plumelin already provides complete collaboration, but organises it across the book and its world. The differences below describe the concrete consequences of each model.
| Criterion | Plumelin | Ellipsus |
|---|---|---|
| Primary focus | Book studio: manuscript, structure, worldbuilding, review and production. | Collaborative writing space: documents, drafts, sharing and merging. |
| Text structure | Parts, chapters, scenes, hierarchical corkboard, story arcs and a timeline connected to scenes. | A document can have several drafts, compared or merged according to the team’s workflow. |
| Worldbuilding | Characters, places, events, objects, languages and relationships are structured data available from the text. | Document templates are available for characters, relationships, outlining and worldbuilding. |
| Collaboration | Real-time co-editing, presence, collaborator position following, roles, comments, suggestions, decisions and notifications in the book project. | For free: unlimited documents, drafts and collaborators, distinct roles, comments, chat and real-time collaboration. Comparison and merging complete the workflow. |
| Themes and visual comfort | Light, dark or system themes and four manuscript font choices in a deliberately stable editorial interface. | 37 built-in themes, real-time recolouring with semantic colours, accessibility fonts and a custom theme generator with Plus. |
| Revision support | Spellchecker, advanced search, scene-entity context, named versions, comparison and restoration. | Regular-expression search, spellchecker, history and Writing Insights with Plus: readability, pacing, diversity, repetition, adverbs, passive voice and other measures. |
| Offline use | Installable, local-first web application: writing continues offline, then synchronisation resumes. | Installable web application, but an active connection remains necessary. Reloading offline failed during our test. |
| Output | Cover, front and back matter, layout profiles, TXT, Markdown, HTML and PDF; DOCX and EPUB depending on the plan. | Download the main document as DOCX, PDF or Markdown, download drafts separately, and publish to AO3. |
| Business model | Free plan, then Author for advanced exports and Studio to open your projects to collaboration. | Unlimited documents, drafts and collaborators in the free offer. At test time, Plus cost US$6/month for 24 months, US$60/year for two years or US$99 once, after which the licence is owned. |
| Check | The plan required for the desired output formats and collaboration level. | Network dependence, document-by-document downloads and whether the expected layout is preserved. |
Imagine a four-author novel, several versions of one scene, a complex world and final publication. The choice appears at every transition from draft to book.
Ellipsus retains specific advantages: parallel variants, advanced themes and AO3 publishing. It is not presented as generally superior for collaboration: Plumelin covers more shared work across a structured book.
Choose Ellipsus first if your priorities are free collaboration with unlimited participants, parallel drafts, comparison and merging.
See Ellipsus collaborationChoose Plumelin first if characters, places, events and relationships are not just reference cards but structured context to retrieve while writing.
See the book’s worldChoose Plumelin first if trains, travel or an unstable connection must never interrupt the manuscript. Ellipsus currently requires an active connection.
See writing in PlumelinChoose Ellipsus first if direct AO3 publishing matters more than a book-wide EPUB, DOCX or PDF production workflow.
See formats and AO3 in EllipsusChoose Ellipsus first if varied themes, instant application across the interface and fonts for different reading needs matter to your daily comfort.
See Ellipsus featuresBoth tools exchange DOCX and Markdown, but their models are not identical. Text conversion does not automatically recreate drafts, relationships or decisions.
From Ellipsus to Plumelin. Download the main document and every useful draft separately as DOCX or Markdown. Import an excerpt first, then rebuild the scenes and world elements that need structured data.
From Plumelin to Ellipsus. Export a representative chapter as DOCX or Markdown, import it into a new Ellipsus document, then check headings, separators and comments. World entries will need to become dedicated documents or templates.
See Plumelin importsThe largest differences concern parallel drafts, offline use, the world model and book output.
Yes. Both support writing, sharing and feedback. Ellipsus first organises documents, drafts and collaborators; Plumelin first organises a book with its scenes, world, review and exports.
Neither is inherently superior. Ellipsus provides real-time co-editing and unlimited documents, drafts and collaborators for free; it is more direct for comparing and merging variants. Plumelin provides presence, collaborator following, roles, comments, suggestions, decisions and notifications when collaboration must follow the book’s structure and world.
Not according to its current official help. The Ellipsus web app can be installed, but requires an active connection. Plumelin is local-first and allows offline writing before synchronisation.
Ellipsus provides document templates for characters, relationships, outlining and worldbuilding. Plumelin goes further when those elements need a structured model with entities and relationships available from scenes.
Ellipsus downloads the main document as DOCX, PDF or Markdown and each draft separately; it also publishes to AO3. Plumelin adds a cover, front and back matter, layout profiles, TXT, Markdown, HTML and PDF, then DOCX and EPUB depending on the plan.
Ellipsus is currently more complete: 37 built-in themes, several accessibility-oriented fonts and a custom theme generator with Plus. Plumelin provides a light or dark interface and several manuscript fonts with a more stable visual identity.
Ellipsus information comes from its overview, official help and a practical test in the web app (version 3b843ae) on 13 August 2026. We created a fictional document and divergent draft, tried themes and Writing Insights, inspected roles without sending an invitation, checked export options, downloaded a Markdown file and tested an offline reload.
The test used one account, so it does not validate a real multi-user session. On this new document, opening the comparison screen twice produced a missing merge-base error (404). We therefore could not validate the comparison display or merge ourselves; this isolated result does not challenge their advertised availability or prove failure in other projects. Plumelin information refers to local features and product pages.
Flying Golem SAS publishes Plumelin. The comparison aims for objectivity based on information and features available at test time without claiming to cover every use case. Features, prices and access conditions may change: check the offer and test your workflow before migrating. Has something changed? Email us at hello@plumelin.com.
Try one scene, one collaborative variant, one world element and your real output format. The best tool is the one that keeps this path clearest.
Start for free