The editor that edits your book, not the one that writes it.
DraftLine is a free, open-source manuscript editor for novelists. It runs entirely offline, needs no account, and builds a deterministic model of your story from the manuscript itself — no story bible to fill in, no roster to keep in sync.
- Reads the book you wrote. Characters, aliases, relationships, plot threads, and continuity are derived from the prose. Import an EPUB of a finished novel and see what it finds.
- Shows its work. Every answer cites the chapter, paragraph, and sentence it came from. Click through to the passage.
- Flags, doesn't guess. Continuity slips surface as inspections.
- Edits, doesn't write. AI is off by default and hidden until enabled. When on, it's a copy editor with your own provider — every change is an approve/deny diff. It never generates your story.
- Works in a cabin. Grammar, style, entity-aware spellcheck, and cast-mode read-aloud all run locally. No network, no cloud, no telemetry.
- The manuscript is the source of truth.
- Deterministic, not generative.
- Offline first, forever.
- Beautiful and usable out of the box — writers shouldn't need to be developers.
Built with Go and React on Wails. Windows, macOS, Linux.
Website: draftline.ink