an AI editorial room, inside the draft.
12 specialist AI review passes, manuscript-derived story memory, chat that edits the chapter for you, a quill that writes the next passage, AI book covers and character art, and the controls to accept, restore, share, or export. real product screenshots, no mockups.
a verdict, not a compliment.
pick a depth, from a quick editorial letter up to a full assessment, and quarkle reads the whole chapter or book in one sitting. a revision plan sorted into critical, recommended, and optional. every promise the book makes, tracked to where it pays off. a map of where the tension holds or sags.
ask it anything. it already knows.
quarkle chat answers from your actual manuscript: characters, world, and plot notes it keeps updated as you write. no re-explaining your book every session.
an editor that can hold the pen.
quarkle chat doesn't just advise. ask it to make the change and it edits the chapter for you, staged as a diff you can see: what it now reads, what apply would make it, added words highlighted, removed struck through. it never commits anything itself. apply it, skip it, or select part of the diff and keep only that.
twelve editors. one room.
your chapter goes through 12 specialist AI review passes grouped into four editing jobs: copy, line, developmental, continuity. within every tier, an AI consolidation pass merges duplicate notes, resolves conflicts, and keeps the sharpest version of each point.
your book, indexed.
quarkle reads your manuscript and builds a set of notes from it (characters, objects, places, and chapter summaries), updating them as the draft changes. freeze a note to pin canon exactly as you wrote it, and review saved changes in version history.
your cast, auto-profiled.
open any character and there's a real dossier quarkle wrote from your chapters: role, personality, backstory, and the arc so far, kept current as the story moves. add a portrait from the Drawing Room and the note becomes a face. this dossier on Noa existed before the author ever asked for it.
see your book, illustrated.
create AI book covers, character portraits, and scene illustrations from the manuscript itself. gather a chapter or Story Atlas notes, review the exact image prompt, choose a style and shape, then keep only the takes that belong in your book.
stuck mid-scene? pass the quill.
press the quill and quarkle reads your book, then writes the next passage straight into the chapter, streamed word by word in ghost ink: a tint that marks every sentence it wrote until you claim it. steer it with a direction, set how far it runs, stop it mid-sentence and keep what landed. undoing the whole passage is one gesture.
select a line. rewrite it in place.
highlight any passage and pick expand, embellish, concise, or restructure. the result streams into a preview card as a diff: added words highlighted, removed words struck through. nothing changes in your manuscript until you accept it.
keep every draft within reach.
quarkle saves a checkpoint roughly every 250 words, plus any you save yourself. compare any two checkpoints as a word-level diff, and restore an older one, with a fresh checkpoint of the draft you're leaving.
every note, versioned.
your book's memory keeps its own revision log: who changed what, you or quarkle, down to the word, newest first. open a saved change to see the exact diff, then restore that version when you need it.
build your own editor.
start from a template (professional proofreader, hemingway editor, conflict generator) or write your own from scratch. give it a name, a tier, instructions, and a couple of examples, and it runs alongside the built-in editors on every manuscript.
set the boundary your story needs.
mature-fiction support is off by default and available after age confirmation. the model picker shows which models support darker or explicit material, while Quarkle's safety boundary remains fixed across every plan.
share it, without losing control.
invite a reader by email (they get read-only access, never edit rights) or flip on a public reading link anyone can open. turn it off any time to make the manuscript private again.
your file, in and out.
bring in pdf, markdown, or plain text. each file becomes its own chapter. export to word, pdf, or markdown with a real template designer: classic book, modern editorial, literary, or submission manuscript, with your own title page, fonts, and page size.
the shape of your year.
streaks, a daily average, a heatmap of your whole year. set writing days and a monthly word-count goal and quarkle works out the daily target for you. streaks reward showing up, not word-count heroics.














