Local-first writing studio
Your world. Your words. Your machine.
Lumenquill is a cross-platform desktop studio for long-form fiction: worldbuilding, prose drafting, canon integrity, art pipelines, and publication-ready export. Zero cost, zero cloud, forever.
Local-first, plain files
Canon is Markdown. Prose is Markdown. Art is ordinary image files. You can open the project folder in any editor and lose nothing essential.
Zero cost, forever
No mandatory servers, subscriptions, accounts, or paid APIs. All core features run offline and free. AI is optional and pluggable: None, Ollama, or your own key.
Links never leak into the book
In-app cross-references are an authoring aid only. Every wiki-link collapses to plain display text in every export format: EPUB, PDF, DOCX, and HTML.
Everything a long-form author needs.
From the first worldbuilding note to the final print-ready PDF. Lumenquill handles the entire lifecycle in one application.
Canon management & schema engine
User-extensible entity types: characters, realms, factions, systems, cultures, establishments, recipes, and any type you define. YAML frontmatter + Markdown body, per-vault schemas.
Canon Lock & consistency engine
Mark facts as immutable. The deterministic consistency engine checks prose against locked canon, flagging ability timing violations, broken links, and presence/lifecycle errors with no AI required.
Prose editor
A distraction-free writing environment with chapter and scene management, word count targets, and inline canon cross-references that collapse on export.
Art & commission pipeline
Attach reference art to any entity. Track commission status, artist credits, and usage rights. Keep your visual world organized alongside your written one.
Relationships graph
A live visual graph of every entity and its connections. See how characters, factions, and locations relate at a glance.
Publication export
Export to EPUB, PDF (via Typst), DOCX, and HTML. All wiki-links collapse to plain text. Styles are customizable. Your manuscript, ready to submit.
Every tool you need, in one place
From vault to export: Lumenquill keeps your world, your words, and your art together.
Start writing. Keep everything.
Free and open source when it ships. Sign up to hear when it's ready.