Harmony Publishing logoFree Tools for Authors

Query Letter Generator

A literary agent query letter from your title, genre, and story hook. Draft in seconds, refine in minutes.

About this tool

Agents read the first paragraph and decide. A strong hook plus clean structure gets your manuscript read. This generator builds that structure from your input.

How to use it

Enter your book title, genre, word count, and a one-to-two-sentence hook. Three free letters a day.

Why use this Query Letter Generator instead of asking ChatGPT or Claude?

Chatbots are great for ideas. This tool is for getting the job done — here's what changes when you use it instead of pasting your text into a chat app.

Compared to a chatbotThis toolChatGPT / Claude
SpeedInstant. No prompt, no preamble, no waiting.Type a prompt, wait for a long reply, read through it.
PrivacyRuns in your browser. Nothing gets uploaded or stored.Your text is sent to and stored by a third party.
FormatConsistent, copy-ready output every single time.Different style and structure every session.
SignupNone. Open the page and go.Account required, limits and paid tiers involved.
CostFree. Unlimited with Tools Pro ($4.99/mo, all 18 tools).Free tier with limits, or $20+/mo for full access.

Use a chatbot to brainstorm. Use this tool to finish the job — then publish with Harmony when the book is ready.

Frequently asked questions

How long is the generated letter?

250-350 words — the accepted query range for most agencies. It includes the hook, book info, a short synopsis, and a closing.

Do I address the agent by name?

The draft uses a generic greeting. Before sending, replace it with the agent's actual name — personalized queries convert far better.

Can I use the letter for multiple agents?

Yes. Adjust the hook and personalization per agent. Never send identical mass queries; agents compare.

Manuscript polished?

Harmony Publishing helps authors publish — editing, cover, formatting, distribution, 100% royalties.

See self-publishing packages

More free tools for authors