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AI Capture Page Builder

A capture page has one job: trade something useful for a contact detail. This page explains how BYOB OnePage generates a focused opt-in page from a prompt, and where the responses end up once you publish.

Prompt to product

From one-line brief to finished app.

Compare the one-line brief with what BYOB ships. Real layout, data, and deploy status, editable from the same workspace.

TD

Team Tasks

Shared task tracking

Online
Today4
Done11
Streak6d
Open live app ↗
Prompt Product

Drag the handle. Or focus it and use the arrow keys.

Get inspired

Sites like this, live today.

Real sites that do it well. Build something like this with BYOB.

Exactly.ai website
Exactly.ai AI product page with a clear, confident pitch. Visit ↗
Loveart website
Loveart Bold AI-design hero with strong visuals. Visit ↗
Paper website
Paper Minimal canvas product with crisp copy. Visit ↗
Nucleo website
Nucleo Icon library with a clean, focused page. Visit ↗
Mailchimp website
Mailchimp Email leader with benefit-led sections. Visit ↗
Typefully website
Typefully Creator tool with a sharp, simple pitch. Visit ↗

Fresh from the community

See what builders ship, or start from an example.

View showcase →

Live workspace

Code, chat, and preview in one place.

The workspace is built for repeated product work, not disposable demos. Every generated file stays inspectable, every change is visible, and every follow-up can target the exact part of the app you care about.

01 · EDITOR

Generated code, ready to edit.

Every file BYOB writes stays visible and editable. Follow-ups target the exact lines you care about instead of regenerating from scratch.

  • Added lines highlighted the moment they land
Code
Act mode
TodoPage.svelte
schema.ts
1<script lang='ts'>
2type Task = { id: string; title: string; done: boolean }
3let tasks = $state<Task[]>([])
4
5function toggleTask(id: string) {
6task.done = !task.done // just added by BYOB
7}
8</script>
main · 0 problems Preview ready

02 · AI COMMAND

Plan, build, and refine in one chat.

Describe the outcome once. BYOB turns it into a build plan, implements it step by step, and keeps every change visible while you iterate.

  • Build plan with live progress you can inspect
B BYOB AI
Chat Act

Your prompt

“Build a todo app for beginners”

Build plan

80%
  • Task list UI + empty state
  • Add + toggle actions
  • Progress summary…
Add due dates and filter by done…

03 · LIVE PREVIEW

See every change the second it lands.

The preview updates as BYOB works, with deploy status attached, so the path from edit to production stays inspectable.

  • Real app state, not a static mockup
Live preview
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TD

Team Tasks

Shared task tracking

Online
Progress 2 of 3 done
  • Wireframe landing page
  • Task list component
  • Responsive polish + QA
Ask BYOB to refine
Deployed · SvelteKit · SSL on

Prompt to app

From first prompt to a workspace you can ship.

Start conversationally, approve the shape, let Tool Mode implement, then refine and deploy from the same workspace.

  1. 01 Describe the product Start with the outcome, audience, and any constraints. BYOB turns the idea into a practical build plan.
  2. 02 Shape the UX Review the proposed flows, screens, data needs, and visual direction before code starts moving.
  3. 03 Generate the app Tool Mode writes SvelteKit code, connects integrations, and keeps each change visible in preview.
  4. 04 Test and refine Ask for edits, roll back when needed, run checks, and keep the project editable instead of disposable.
  5. 05 Deploy Ship the finished app, connect domains, and keep iterating from the same workspace.

Agent and backend

Code with your agent, ship with a real backend.

Connect Codex, Claude Code, or Antigravity to your project, then store data and ship to production without leaving the workspace.

  • Approve project access from BYOB
  • Installs the byob command
  • Preview, deploy, git diff, DNS, credits, and code tools
npm
npx -y byob-cli codex install

Approve only the projects your agent can touch, then read context, edit files, inspect diffs, test previews, and roll back from your terminal.

1
prompt to start
3
live panes
24/7
edge preview

Loved by builders

Rated 4.9/5 by developers and founders using BYOB to move from idea to shipped product.

Rated 4.9/5 by builders shipping with BYOB.

Start building
  • Clean SvelteKit code you own
  • One-click deploy + rollback
  • Pay as you go pricing

Built for shipping

The parts that usually slow you down are already here.

BYOB handles product planning, implementation, preview, testing, database work, and deployment from one focused interface, with coding-agent access and production analytics when you want to keep working from your own terminal.

This part is hands-on. The cards drift until you touch them. Drag to rearrange, or press and hold one to feel it push back.

Agent integrations

Give Codex, Claude Code, or Antigravity scoped access through BYOB CLI or Agent MCP. Your agent reads context, edits code, tests previews, and deploys from your terminal.

Git history and diffs

Every change lands as a commit. Inspect history, compare diffs, and see exactly what changed since the last deploy.

Inbox in every project

Every project ships with an inbox. Collect messages, leads, and feedback from your app without wiring a third party.

Email sending built in

Send magic links, OTP codes, and transactional mail from your own sender address. Resend-backed, no SMTP setup.

Google and magic-link login

Offer Continue with Google plus passwordless email codes. Sessions and callbacks are handled.

Custom domains and SSL

Point your domain at BYOB with guided DNS checks. Certificates are automatic.

Visual editing

Click any element in the live preview and describe the change. Copy, spacing, color, behavior.

AI testing agent

Run full-site or feature checks and get implementation-level feedback you can apply in one step.

Version rollback

Step between saved states or redeploy a known commit when an experiment goes sideways.

One-click deploy

Builds publish to production hosting in one step. Deploys can auto-save the project state first.

Deployment analytics

Worker traffic, errors, CPU timing, subrequests, and custom-domain status from the workspace.

Supabase aware

Connect Supabase and BYOB reads schemas, drafts migrations, and generates types that match your app.

Team collaboration

Invite people in and keep sessions coordinated so work never overwrites work.

  • Vision inputs
  • Voice coding
  • Project templates
  • SEO-ready output
  • Context tracking
  • Model lock

Simple pricing

Start with credits, upgrade when usage is steady.

Pay as you go when you are exploring. Move to Pro or Max when BYOB becomes part of your regular build workflow.

Pay as you go

$0

$1 = 100 credits

Popular

Pro

$25

2,000+ credits/mo

Max

$79

8,000+ credits/mo

Live estimator

What will your app cost?

Try the cost calculator. Drag the pages slider, toggle the options, and watch the agency quote vs BYOB update instantly.

Open full cost calculator →
Number of pages: 5
Traditional agency estimate

$5,750 upfront

Yearly maintenance

~$1,150 / year

BYOB estimate

~$45 in credits

BYOB builds the same site from one prompt and hosts it on the edge. Planning estimates, not quotes.

See BYOB plans
View full pricing

Need white-label and SSO? Talk to us →

A capture page is a single destination built for one action: trading a useful offer for an email address. BYOB OnePage generates the headline, offer block and short form from a prompt, then delivers every submission to your project inbox so you can follow up without connecting another tool.

One page, one action

A capture page removes every competing link and asks for a single thing: an email, a phone number, or a short form response. That focus is the whole point. BYOB OnePage generates a stripped-down layout with a strong headline, a clear offer and one form, so nothing distracts the visitor from converting. You describe the offer in a prompt and refine the result by clicking any element.

Anatomy of a form people actually fill in

Every extra field costs completions. The generated form asks for the minimum needed to continue the conversation, usually just an email, with the option to add a name or question. The value of the offer sits directly beside the fields, so the reason to respond is visible at the moment of decision rather than buried further down the page. Keep it short.

Where the responses land

Submissions go to your project inbox, so early contacts are not scattered across a spreadsheet you forget to check. You can review them in the same place you edit the site, then follow up however you already work. Because the page is a self-contained site, there is no separate form plugin to install or maintain, and no third-party account required just to receive a reply.

Testing a new offer without a redesign

Capture pages are fast to test because only the promise changes. Swap a headline or rewrite the offer in chat, publish, and see whether the response rate moves. You keep the same layout and the same form, which means a low-performing offer can be replaced in about 30 seconds instead of triggering a rebuild. That speed is what makes message testing practical for a solo founder or a small marketing team.

Capture page or sales page?

A capture page asks for a contact detail; a sales page argues for a purchase. The capture page is the easier first step when you are still validating demand, because it does not require pricing, testimonials or a checkout. Once you know people want what you are offering, move to a full sales page with proof and a payment link. Many launches run both, with the capture page feeding the sales page over time.

FAQ

Frequently Asked Questions

How many fields should a capture page have?

As few as possible. An email alone converts better for most offers; add a name or question only when you will genuinely use the answer.

Can I change the offer after publishing?

Yes. Edit the copy by chatting or by clicking the element, then republish; the form and layout stay in place.

Is a capture page the same as a squeeze page?

They overlap closely. Both trade an offer for a contact detail, though squeeze pages are often written for list-building specifically.

Do I need my own domain?

No. You can publish on a BYOB domain for free and connect a custom domain later when the page is worth branding.

Is it free to start?

Generating and publishing a OnePage capture page is free to start, with paid plans for custom domains and heavier usage.

Build the first version today.

Start with one clear prompt. BYOB will help turn it into a product you can inspect, edit, test, and ship.