AI PRD Generator
Turn an idea into a developer-ready PRD package — features, data model, API, design tokens and CLAUDE.md / .cursorrules for your AI coding agent
What is AI PRD Generator?
AI PRD Generator is a free AI tool from Farvixo that helps you turn an idea into a developer-ready PRD package — features, data model, API, design tokens and CLAUDE.md / .cursorrules for your AI coding agent. Your prompt is sent to a language model, which streams the answer back as it is written. No API key and no account are required, and responses arrive as they are generated rather than all at once.
How to use AI PRD Generator
Write one paragraph about what you want to build and pick your platform — web, mobile, desktop, API or AI product.
Say who it is for, what must ship, and — crucially — what should NOT be built. Pick your theme, brand colour and exact tech stack.
The AI runs an outline pass, five section passes and a consistency check. Download the package as ZIP — six Markdown files, the full PDF, tokens.css, CLAUDE.md and .cursorrules — or grab Markdown, PDF or DOCX on their own.
Frequently Asked Questions
Is the AI PRD Generator free?
Yes — generate a complete PRD free, with no signup and no credit card. Your answers stay in your browser.
What exactly do I get?
A six-file package: overview (problem, scope, personas), features with testable acceptance criteria, architecture (data model, API, user flows), a design system with real CSS tokens, delivery (non-functional targets, milestones, risks) and AI-agent build instructions. Plus the whole thing as a PDF, tokens.css, CLAUDE.md, .cursorrules and AGENTS.md.
Why six files instead of one document?
AI coding agents have a limited context window. One 25-page document forces the agent to re-read everything for every task. Six focused files let it load only what the current step needs, which measurably improves the code it writes.
Does it work with Cursor and Claude Code?
Yes. The package includes a ready-made CLAUDE.md for Claude Code and a .cursorrules for Cursor, plus a generic AGENTS.md that works with Copilot, Windsurf, Cline, Codex and others. Drop the ZIP at the root of a new repo and point your agent at it.
Can I use my own tech stack?
Yes. Pick from the common options or choose "Other" and type any stack you like. The spec is written for exactly the stack you name — it never substitutes a different framework.
Why does it ask what NOT to build?
Because that is the half most specs omit. Without an explicit out-of-scope list, an AI coding agent invents features nobody asked for. Every exclusion you list is carried verbatim into the PRD and into the agent’s "never build" rules.
What is the quality score?
After generating, the PRD is checked against eight criteria: acceptance criteria on every feature, a defined data model and API, measurable non-functional targets, a stated out-of-scope list, an agent build order, and whether the derived colour palette passes WCAG AA contrast. You see the result rather than having to judge the output blind.
Can I regenerate just one section?
Yes. Each of the five sections can be regenerated on its own against the rest of the document, so you never have to rebuild a whole PRD to fix one part.
Are the design tokens real?
Yes. You pick one brand colour and the tool derives a full palette — brand shades, surfaces, text, borders and status colours — then audits every text/background pair for WCAG AA contrast and exports it as a tokens.css file you can paste straight into a project.
Is my idea kept private?
Your wizard answers and the generated PRD are stored only in your own browser. Nothing is published, and you can clear it with the "Start over" button at any time.
What you can use AI PRD Generator for
- Drafting a first version quickly when the blank page is the hard part
- Summarising a long document down to the points that matter
- Rewriting text for a different audience, tone or reading level
- Students, marketers and developers who want an AI assistant without paying for a subscription
AI PRD Generator at a glance
- Tool
- AI PRD Generator — AI Tools
- Purpose
- Turn an idea into a developer-ready PRD package — features, data model, API, design tokens and CLAUDE.md / .cursorrules for your AI coding agent
- Input
- Text or values you enter directly
- Output
- Generated text you can copy, refine or download
- Processing
- Sent to an AI model for processing; nothing is stored afterwards
- Price
- Free, unlimited, no account required
- Limitations
- Requires an internet connection; responses have a maximum length
Tips for better results
- Say who the output is for and how long it should be. Specific constraints produce far better results than an open request.
- Treat the first answer as a draft and refine it with follow-ups rather than re-typing the whole prompt.
- Always check facts, figures and citations yourself — a language model can state something wrong with complete confidence.
Common problems and how to fix them
The answer stopped part-way through
The response hit its length limit. Ask it to continue, or split the request into smaller parts.
The result is generic or off-target
The prompt left too much open. Add the audience, the format, the length and an example of what good looks like.
The tool declined the request
The prompt crossed a safety boundary of the underlying model. Rephrase it, stating the legitimate context and purpose.
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