AI website builder for SaaS
Your SaaS website, designed by AI and shipped as code
FNJ's AI website builder designs SaaS and startup websites from your product description and a site you admire: a hero with a specific promise, features, how it works, pricing, FAQ and supporting pages, at desktop, tablet and phone widths. Export it as a Next.js project or static HTML and deploy it next to your app.
The pages a product site needs
Describe the product and the builder plans the site, typically:
- A hero with one promise, one primary call to action and product visuals you upload.
- Features and how it works, in scannable sections.
- Pricing with your tiers, and an FAQ that answers objections.
- Pages such as about, changelog, customers or careers, if you ask for them.
Lives next to your app
Export the marketing site as Next.js and put it in your monorepo, or as static HTML on its own domain. It's plain code your engineers can read, with no FNJ dependency to maintain.
Iterate like a product team
Ask for a sharper headline, a new pricing tier or a comparison section in plain words, or edit by hand. Each prompt can be undone. When the positioning changes, the site changes in minutes, not sprints.
FNJ's AI website builder at a glance
- Starts from
- Your description plus up to 3 references: screenshots or links of sites you like
- Designs
- Every page at desktop (1440px), tablet (810px) and phone (390px) widths
- Editing
- Ask for changes in plain words, or edit any element by hand on the canvas
- Export
- A Next.js project, static HTML, or a push to your own GitHub repository
- Hosting
- Yours: Cloudflare Pages, Vercel, Netlify or any static host. No FNJ runtime in the code
- Price
- From $25/month, or $29 once for 50 credits that never expire
- AI account
- None needed: FNJ runs the AI for you, no API key or AI subscription
How it works
01
Show and tell
Add up to 3 screenshots or links of sites you'd like yours to look like, then say what the business is and which pages you need.
02
Watch it build
The AI builder plans the pages, palette and type, then builds each page on the canvas, section by section, while you watch.
03
Refine and ship
Ask for changes in plain words or edit by hand, then download the code or push it to your GitHub.
SaaS & startups: questions
- Can I put the site in my existing Next.js monorepo?
- Yes. The Next.js export is a standard App Router project with plain CSS; copy its routes into your app or deploy it as its own project.
- Can it build a sign-up flow or dashboard?
- No. It builds the marketing website. Point its sign-up and log-in buttons at your app.
- Can I show product screenshots?
- Yes. Upload your screenshots or product images anywhere an image is used.
- How fast can we ship a first version?
- A first version of a multi-page site builds in minutes while you watch. Refinement is up to you; most teams iterate over a handful of prompts.
More from the AI website builder
- AI website builder with code exportAn AI website builder that gives you the code: design every page from a reference, then download a Next.js project or static HTML, or push it to your GitHub.Read more →
- AI website builder for Next.jsDesign a complete website with AI on a visual canvas and export it as a clean Next.js App Router project. Responsive at three widths, no FNJ runtime.Read more →
- AI landing page builderDescribe your offer, add a page you like, and FNJ's AI landing page builder designs a conversion-focused page for desktop, tablet and phone, then exports the code.Read more →
See the AI website builder and a live demo
Show it a site you love. Get yours.