A guided assistant
AI story planning to spark your creativity.
Storiis gives you a complete set of intuitive AI tools that guide you through every stage of story development, from initial idea to a scene-by-scene plan that’s ready to draft.
Storiis is AI story planning software for brainstorming ideas, developing characters and worlds, building scenes, and analyzing the structure of a complete story plan.
A harbor-town constable pulls a drowned bell from the tide and the confession it was meant to silence—and finds her own name in the ledger.
Guilt, tide, what the town agreed to forget
Cold, hushed, slow-dread coastal noir
One system, six kinds of help
Targeted help for specific problems.
There’s no “make my story” button because big, vague AI requests produce big, vague results. Storiis gives you a specific tool for each kind of planning decision, and because they all work from the same story, you never have to explain your world twice.
Brainstorm →
Turn a logline, hook, or fragment into a story foundation you can build on.
Develop →
Deepen the outline, cast, storylines, and worldbuilding—one piece at a time.
Plan scenes →
Fill one gap in the story, or rough out the whole scene-by-scene path.
Review →
Discuss the plan you already have and prepare careful, undoable revisions.
Analyze →
Run craft reports that find the problems hiding between the scenes.
Visualize →
Generate portraits, locations, and mood references for the world you’re building.
For the exciting idea you can’t describe yet
Start with a spark, leave with a story.
Bring whatever you have—a logline, a hook, a what-if. Guided brainstorming asks questions and collaborates with you on your idea before it generates anything.
You choose what it delivers: a complete story overview, an act-by-act outline, a cast of main and supporting characters, and the worldbuilding that ties it together.
Build & refine the plan
Keep what’s working, work what’s not.
Need a bridge scene? Want to add a romance sub-plot? Storiis AI works within your existing plan to tweak until it’s perfect.
Make sure the puzzle pieces create the right picture
A second opinion.
Storiis is packed with story and character analysis tools that let you find the trouble spots and facets to improve. AI plan summary allows you to make up your own mind by turning your plan into prose you can read before the story’s even written.
Story Health
A high-level read—the composite score, then where every lens finds trouble.
Uneven—needs work
15 issues across 6 lenses. Explore the matrix below to see where they occur.
● 7 issues
● 8 suggestions
● 1 strength
Build your northstar
From plan to prose.
Everything you build in Storiis becomes the working memory for whatever writes the prose – whether that’s you in the drafting tools you love, or the AI you already write with. (Add images of export to Scrivener, doc, etc.)
You make it work.
Review everything
AI output doesn’t ‘just happen’, you’re heavily involved in, and approve suggestions every step of the way.
Optional checklists
Analysis points to patterns and asks questions, you decide whether or not it matters to you, and how you want to incorporate its feedback into your plan.
Costs shown first
Estimated credit costs appear before supported AI requests. No surprise charges.
Or none of it
One setting hides every AI feature for a completely manual workspace.
Powerful planning. Sensible metering.
Every Storiis subscription includes the complete manual planning system. AI features use credits—included monthly with AI plans, with one-time packs when you need more. Compare plans and AI credits →
Do I need AI to use Storiis?
No. The complete manual planning system – story bible, scenes, storylines, timeline, and exports – works without AI. You can also hide AI features entirely.
Will the AI write my book?
Not inside Storiis. These tools plan, develop, review, and analyze. Once your plan is complete, you can export and bring it to your drafting tool of choice or, when you want AI-written prose, hand your plan to the writing tool of your choice through Cloud AI Access or a Story Bible export.
Can I undo what the AI changes?
Yes. Everything is proposed before it’s applied, and accepted Plan Review changes are grouped so they can be undone together.
Is Cloud AI Access included?
It’s a separate add-on with its own document allowance. It connects your outside AI to your plan and doesn’t use Storiis AI credits.
Learn the details
AI ToolsBrainstorming & developmentScenes & Plan ReviewAnalysis & summariesPreparing for AI writing
Your story is waiting for a plan