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Aetia

The unified writing studio for worldbuilders and novelists.

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© 2026 Aetia

Tools

Plan before you draft

Free planning tools for novelists and worldbuilders: outline structure, sketch cast and relationships, and map chronology. Use everything anonymously; sign in to save drafts and import into your studio.

Story elementsBrowse DiscoverPractice modules

Suggested workflow

  1. 1Structure planner
  2. 2Character generator
  3. 3Relationship mapper
  4. 4Timeline builder

Featured tool

  • PlanningFree · no sign-in

    Structure planner

    Free three-act and beat-sheet planner. Pick genre, target length, and overall shape for act breakdowns, milestone hints, and pacing notes. Use anonymously; sign in to save and import.

    Open tool

All planning tools

  • PlanningFree · no sign-in

    Structure planner

    Free three-act and beat-sheet planner. Pick genre, target length, and overall shape for act breakdowns, milestone hints, and pacing notes. Use anonymously; sign in to save and import.

    Open tool
  • CastFree · no sign-in

    Character generator

    Free character profile generator: motivation, fear, strength, weakness, and goal fields you can randomize and edit. Export or sign in to save and import cast sheets.

    Open tool
  • RelationshipsFree · no sign-in

    Relationship mapper

    Free relationship mapper for fiction: sketch family, friendship, romance, rivalry, mentor, and enemy ties between characters. Export dyads or sign in to import.

    Open tool
  • ChronologyFree · no sign-in

    Timeline builder

    Free story timeline maker: build chronological event lists with optional thread labels. Export JSON or sign in to import a timeline stub into your universe.

    Open tool
  • WorldFree · no sign-in

    Name generator

    Free fantasy name generator: syllable-based person, place, and faction names with culture-style filters. Randomize, copy, and export JSON anonymously; sign in to save drafts.

    Open tool
  • PacingFree · no sign-in

    Pacing calculator

    Free novel pacing calculator: genre word-count benchmarks and per-act targets from your target length. Plan scene density before you draft.

    Open tool
  • PlanningFree · no sign-in

    Theme brainstormer

    Free theme and motif brainstormer: central theme, contrasting ideas, recurring images, and writing prompts you can edit and export.

    Open tool
  • SceneFree · no sign-in

    Scene beat card

    Free scene beat worksheet: goal, conflict, outcome, and stakes fields with starter prompts. Export a beat card before opening your draft.

    Open tool

The tools are free to use. Sign in to save drafts and import them into your studio projects.

Sign in to save & import

Frequently asked questions

Do I need an account to use planning tools?
No. Every tool works anonymously: randomize, edit, and export JSON anytime. Sign in only when you want to save drafts or import into a project.
What happens to my data when I sign in?
Saved drafts stay in your account until you delete them. Import sends structured notes into your studio project: the studio remains the source of truth for canon.
Which tool should I start with?
Most writers begin with the structure planner, then sketch cast, map relationships, and build chronology. Follow the workflow strip on this page or jump to any tool.
Can I import tool output into my universe?
Yes, when signed in. Structure plans update project pacing intent; characters and relationships become cast sheets and dyads; timelines create a branch stub you refine in the studio.