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Professional Website Builder

A professional website earns trust in the first few seconds. It reads clearly, works on every screen and gives visitors an obvious next step. This page explains how to produce that standard quickly and maintain it without a permanent developer.

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.

Mailchimp website
Mailchimp Email leader with benefit-led sections. Visit ↗
Typefully website
Typefully Creator tool with a sharp, simple pitch. Visit ↗
Postcards website
Postcards Email builder with clear template previews. Visit ↗
#paid website
#paid Creator marketplace with social proof up front. Visit ↗
Config website
Config Hardware-team page with direct, plain copy. Visit ↗
observIQ website
observIQ Telemetry product with a technical hero. 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
/
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 professional website builder produces a polished, credible site: clear information architecture, consistent typography, responsive layouts and working forms. BYOB generates that standard from a brief and keeps the underlying project editable, so you can refine it and publish updates without rebuilding from a locked template.

What makes a site look professional

Professionalism is mostly consistency. A restrained palette, a predictable type scale, even spacing and aligned components signal that someone cared. BYOB generates those defaults so you are not assembling them by hand, then gives you controls to adjust them as a set rather than one element at a time. Change the type scale and the whole page follows; adjust the spacing rhythm and the layout stays coherent. That is what stops an edit from making a page look worse.

Structure that carries your message

Visitors arrive with a question and scan for an answer. A professional site leads with the value, then supports it in a logical order: what you do, who it is for, proof, details and a call to action. BYOB drafts that flow from your description so the page argues its case rather than listing features. You can reorder sections, add a FAQ or drop a testimonial without breaking the rhythm of the page.

Responsive by default

Most traffic now arrives on a phone, yet many sites are still designed at a desktop width and squashed later. Generated layouts are built responsively, so navigation, images and forms adapt across screen sizes rather than overflowing. BYOB's testing agent checks the result at multiple viewports before you publish, which catches the cramped headings and awkward tables that make a site feel unfinished on mobile. You publish knowing the phone experience was considered from the start.

The details that build trust

Beyond the design, credibility comes from small things done well: fast pages, working links, a real contact method, readable legal pages and up-to-date content. Generated sites include a contact form that delivers to your inbox and page metadata you can edit, so search engines and social previews represent the business accurately. Publishing on a custom domain, rather than a long subdomain, is the final signal that the site is a serious presence.

Keep it professional after launch

The launch is the middle of a website's life, not the end. Prices change, staff join, offers expire. BYOB lets you make those edits by describing them or selecting the section, and every change is versioned so you can undo a mistake. You keep an editable project rather than a locked subscription template, and if you later hire a developer, they inherit real code that can be maintained and improved.

FAQ

Frequently Asked Questions

Can I build a professional site without a designer?

Yes. BYOB generates coherent typography, spacing and layout from your brief, so the first version already follows professional design conventions.

Will it work well on mobile?

Generated layouts are responsive and checked across screen sizes by the testing agent, so the mobile experience is covered before you publish.

Can I use my own branding?

Yes. Adjust colours, fonts and imagery, or supply brand guidance in the prompt so the generated styling reflects it.

What happens to my site if I stop paying?

You can export the project as a ZIP and host it yourself, so the site is not tied to an active BYOB plan.

Is a BYOB site good for SEO?

It renders real HTML with editable titles and meta descriptions, so you can apply standard on-page SEO as you would on any hand-built site.

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.