Structure & Planning Free AI · in-browser

AI Query Letter Generator

Fill in your hook, synopsis, comps, and bio — free AI drafts two professional agent query letters you can edit before sending.

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Your inputs are sent to our free AI. Guests get a limited free tier per device. Log in to cloud-save drafts.

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About this tool

Query letters are a specialized sales pitch — hook, synopsis, comps, bio, and professional tone in under one page. Enter your materials and Kestrel — Free drafts two variants (standard and tight) you can personalize before sending.

Planning tools and long-form structure

Novels fail when structure is improvised scene by scene. Beat sheets, chapter planners, and blurb builders help you decide pacing and reader promises before you spend tokens on prose. Pair these tools with an outline in Entangled Text so generation follows a spine.

Plot & structure guides · Write a book with AI

How to use it

  1. Enter book title, genre, and word count.
  2. Paste your hook and short synopsis.
  3. Add comparable titles and a one-line bio.
  4. Click Generate query letters.
  5. Copy, edit every word, and personalize the agent salutation.

Tips for fiction authors

  • Never send an AI query without editing voice and specifics.
  • Comps should be recent, real titles readers know — not your wish list.
  • Synopsis in a query gives ending direction without spoiling the final twist.

Common questions

Is this free?

Yes — several free generations per device. Sign in to save drafts to the cloud.

Will agents know it is AI?

You must edit the result. Treat it as a first draft, not a send-ready letter.

Related guides

How to Use AI to Braid Subplots So They Converge at Your Climax How to Use AI to Choreograph Fight Scenes Without Losing Track of Space How to Use AI to Stress-Test Your Act Two Turning Points How to Use AI to Design a Ticking Clock That Actually Escalates