Prompt-to-interface creation
Turn a plain-language description into a working interface — layout, content, and interactions included. Start from an idea, not a blank project.
- Describe it once, get a first draft
- Follow up in plain language
AI Website & App Builder
Build websites and apps with a simple prompt.
Describe what you want to create. LineItem helps turn your idea into a web experience you can preview, improve, and take further—without starting from a blank project.
Press Enter to build · Shift + Enter for a new line
See how it works
- Prompt-based editing
- Live preview
- ZIP code export
Prompt-based editing — Change anything by describing it
Live preview — See the result as it is built
Version history — Restore any earlier version
ZIP code export — Download the full source
Deploy anywhere — Cloudflare Pages, Vercel, Netlify
GitHub export — Push a project to your own repo
How it works
From a sentence to a working app in four steps
No setup, no boilerplate, no blank project. You describe, LineItem builds, you refine, and you take the result with you.
01
Describe your idea
Write what you want in plain language — a booking page, a dashboard, a store. No wireframes, no boilerplate.
Example: “Build an expense tracker with categories, charts and a clean dashboard.”
02
Generate a first draft
LineItem plans the structure, then writes the files — pages, styles, and working interactions — in the builder.
Example: a first draft with a dashboard, category list, and chart.
03
Preview and refine
Open the live preview, click through it, then ask for changes in the chat. Each reply updates the real files.
Example: “Make the chart show this month only.”
04
Export or publish
Download the source as a ZIP, push it to GitHub, or deploy it to Cloudflare Pages, Vercel, or Netlify.
Example: your expense tracker, live on your own domain.
Capabilities
Everything after the prompt is part of the product
LineItem is not a prompt box with a download link. The chat, the preview, the file editor, versions, and export all live in the same builder.
Realistic live preview
Every build opens in a live preview next to the chat. Click through the result, check it on phone and desktop sizes, and catch problems before you export.
- Desktop and mobile preview sizes
- Console output in the Logs tab
Follow-up edits that stick
Ask for changes in the same conversation. LineItem applies validated file patches, so an edit changes exactly the files it should — nothing else.
- Plan mode proposes, Build mode writes
- Every change is a saved version
Your code, your files
Download the complete source as a ZIP, or push it to a private GitHub repo from the builder. The code is yours to keep, edit, and host anywhere.
- Full source download (ZIP)
- GitHub export with your own token
Web apps and PWAs
LineItem builds websites and web apps that run in the browser, including installable progressive web apps. It does not produce native App Store packages.
- Responsive by default
- Works on phone, tablet, and desktop
Deploy where you already host
Ship a project to Cloudflare Pages, Vercel, or Netlify from the builder's Deploy panel, using your own provider token. No lock-in to one host.
- Cloudflare Pages, Vercel, Netlify
- Your token stays encrypted
Walkthrough
What the builder actually looks like while you work
No staged screenshots of a finished product. These are the four states of the same builder — the chat, the files, and the preview, side by side.
Start with a sentence
Type what you want in the composer. Pick DeepSeek V4.1 Flash for a fast draft, or V4 Pro for a more complex app — both are included in the free app builder.
Try LineItemTemplates & examples
Start from something that already works
Five working templates ship with the builder. Open one and it loads straight into the builder — then describe the changes you want.
Working template
Analytics Dashboard
KPIs, chart bars, and a data table — a first draft for reporting tools.
Use templateWorking template
Online Store
Product grid with a working cart counter — a first draft for a small shop.
Use templateWorking template
Booking Page
Date picker and confirmation — a first draft for appointments and consultations.
Use templateWorking template
Browser Game
Click-the-target game with a score — a first draft for playful pages.
Use templateWorking template
Utility Tool
Word counter and converter — a first draft for small everyday tools.
Use templateOr describe your own
Templates are starting points. Anything you can describe in a sentence — a landing page, a portfolio, a booking flow — can be a first draft.
Use cases
What people actually build with a prompt
LineItem is for the first draft — the working version you can click through, show someone, and improve. These are the three shapes that first draft usually takes.
Build web apps from a plain-language prompt
Describe the app — an expense tracker, a booking page, a small CRM — and LineItem writes the interface, the interactions, and the files behind them. You refine it in the same chat, and every version is saved. The result is a real web app that runs in the browser, not a mockup.
Create landing pages and business websites
A landing page for a launch, a booking page for a service, a storefront for a small shop — describe the business and the page, then adjust the copy and layout in plain language. Start from one of the working templates when a familiar shape fits, or describe your own from scratch.
Prototype dashboards and internal tools
Dashboards, trackers, and small internal tools are where a prompt-first builder earns its keep: the shape is standard, the data is yours to wire in later. Build the working prototype in an afternoon, click through it with your team, and export the source when it is ready to grow.
Why LineItem
The shortest path from an idea to something you can use
Starting from scratch is not hard because of the code — it is hard because of the blank page. LineItem removes the blank page and leaves you the decisions.
Starting from scratch
- Set up a project, a build step, and a folder structure before writing anything.
- Write every page, style, and interaction by hand.
- Wire up a preview and a deploy step yourself.
- Keep the result — but only after the slow start.
With LineItem
- Describe the idea and get a working first draft in the builder.
- Refine it in plain language — the preview updates as you go.
- Every change is a saved version you can restore.
- Export the code as a ZIP, push it to GitHub, or deploy it yourself.
Your code, your repo
Download the full source as a ZIP or push it to a private GitHub repo. LineItem never holds your project hostage.
Transparent pricing
Free means $0, 3 projects, and 10 lifetime builds. Pro is $20 a month, Team is $49. No hidden metering beyond the plan limits.
Bring your own keys
Use the included DeepSeek models, or connect your own keys for OpenAI, Google Gemini, Anthropic Claude, or OpenRouter.
Pricing
Start free. Upgrade when you build more.
The Free plan is a real plan, not a trial — $0, with 10 lifetime builds. When you need more projects and builds, Pro and Team are flat monthly prices.
Free
$0forever
Start building, no card required.
- 3 projects
- 10 lifetime builds
- $2 credits
- DeepSeek V4.1 Flash + V4 Pro included
- ZIP export and version history
Most popular
Pro
$20per month
For makers shipping regularly.
- 50 projects
- 200 builds per month
- $20 credits
- 3 concurrent runs
- DeepSeek V4.1 Flash + V4 Pro included
- Bring your own LLM keys
Team
$49per month
For small teams building together.
- 200 projects
- 1,000 builds per month
- $100 credits
- 10 seats
- DeepSeek V4.1 Flash + V4 Pro included
- Bring your own LLM keys
Every plan includes the full builder — AI chat, live preview, versions, and ZIP export. Plan runs never count toward build limits. Prices in USD.
FAQs
Questions, answered plainly
Only what the product actually does — no promises about features that do not exist yet.
Start with a sentence. Ship something real.
Describe the website or app you want to build. The Free plan costs nothing and includes 10 lifetime builds.