A product requirements document describes what an application must do and for whom, before anyone builds it: users and roles, features by priority, the data involved, the screens, and constraints such as devices or languages.

How detailed should my description be?

Two or three sentences work, and a few words are enough to start: if the generator cannot tell what you want built, it says so and asks the questions it needs answered. The more you say about the users and the process, the more specific the features and the data model get. Say what must be true ("works on phones", "German only") and the document respects it.

Is this the same as a Lastenheft?

Close. A Lastenheft is the customer's requirements document in German-speaking projects; the German version of this tool writes one. A Pflichtenheft, the supplier's answer, is what a builder or agency produces from it.

Yes. No account, no card, no watermark. Each visitor can run a tool a few times an hour; the limit exists only to keep the tools fast for everyone.

What happens to what I type?

Your input is sent to an AI model to produce the result and kept with the result for 90 days so you can come back to it. It is not used to train anything, and result links are unlisted.

Can I use the result outside Chattee?

Of course. Copy it, download it, share the link. "Build this with Chattee" is there if you want the app built, not a condition.

AI PRD Generator

Turn an app idea into a requirements document your team, your agency or an AI builder can act on.

Describe the app you have in mind *

Who will use it? (optional)

Must-haves or constraints (optional)

Not sure where to start?

Free, no account needed. Processed by an AI model; results are kept for 90 days.

How the PRD generator works

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Describe the idea

Two or three sentences about what the app does and who uses it are enough. Add must-haves if you have them.

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Get the document

Overview, roles, MoSCoW features, data entities, screens, integrations, non-functional needs and open questions.

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Build or share

Copy it, send the link to your team, or hand it straight to the Chattee builder.

What a good PRD saves you

The document forces the decisions that otherwise surface halfway through development.

groups

Roles before screens

Who sees what is the question most apps get wrong late. The PRD asks it first.

dataset

A data model in plain words

Entities and relationships in a table, not a diagram you need a tool to read.

help

Open questions, listed

The things only you can decide are collected instead of decided silently.

Questions about the PRD generator

What is a PRD?

A product requirements document describes what an application must do and for whom, before anyone builds it: users and roles, features by priority, the data involved, the screens, and constraints such as devices or languages.
How detailed should my description be?

Two or three sentences work, and a few words are enough to start: if the generator cannot tell what you want built, it says so and asks the questions it needs answered. The more you say about the users and the process, the more specific the features and the data model get. Say what must be true ("works on phones", "German only") and the document respects it.
Is this the same as a Lastenheft?

Close. A Lastenheft is the customer's requirements document in German-speaking projects; the German version of this tool writes one. A Pflichtenheft, the supplier's answer, is what a builder or agency produces from it.
Is it really free?

Yes. No account, no card, no watermark. Each visitor can run a tool a few times an hour; the limit exists only to keep the tools fast for everyone.
What happens to what I type?

Your input is sent to an AI model to produce the result and kept with the result for 90 days so you can come back to it. It is not used to train anything, and result links are unlisted.
Can I use the result outside Chattee?

Of course. Copy it, download it, share the link. "Build this with Chattee" is there if you want the app built, not a condition.

From requirements to a running app

Chattee reads a PRD like this and builds the full-stack app from it: database, login, screens, deployment. Planning is free.

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