Buy Me a Coffee Creator funding with a friendly, simple pitch. Visit ↗
BYOB New inbox in every project
AI Website Builder for Startups
Early-stage teams rarely have time for a six-week website project. BYOB is an AI website builder for startups that turns a founder's description into a live site or a working MVP, so validation starts this week rather than next quarter.
Runs on the stack you trust
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
Today4
Done11
Streak6d
Open live app ↗
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.
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Whelp Support software with an omnichannel story. Visit ↗
Qatchup User-feedback tool with a conversational page. Visit ↗
Fresh from the community
See what builders ship, or start from an example.
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'>2
type Task = { id: string; title: string; done: boolean
}3
let tasks = $state<Task[]>([])4
5
function toggleTask(id: string) {6
task.done = !task.done // just added by BYOB7
}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
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.
- 01 Describe the product Start with the outcome, audience, and any constraints. BYOB turns the idea into a practical build plan.
- 02 Shape the UX Review the proposed flows, screens, data needs, and visual direction before code starts moving.
- 03 Generate the app Tool Mode writes SvelteKit code, connects integrations, and keeps each change visible in preview.
- 04 Test and refine Ask for edits, roll back when needed, run checks, and keep the project editable instead of disposable.
- 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
npmnpx -y byob-cli codex installApprove 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.
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
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 plansView full pricing
Need white-label and SSO? Talk to us →
An AI website builder for startups lets founders launch a landing page or minimum viable product without hiring an agency or waiting on a development sprint. BYOB generates a site - or a full app with sign-in and data storage - from one prompt, then publishes it on a custom domain in about 30 seconds.
From a rough idea to a live page this week
Founders usually have a pitch, a name and a rough sense of the product, but not a designer on staff. Type that context into BYOB and it drafts the whole page: a headline that states the value, a features row, social proof slots, pricing and a signup form. You review it in the preview, request wording changes in chat, and publish when the message feels right. The entire loop fits into an afternoon rather than a design agency's calendar.
When a landing page is no longer enough
Most startup ideas need a second page sooner than expected. The moment you want users to log in, save something or see a personal view, BYOB upgrades the same project into a functional prototype. Add app functionality with Better Auth sign-in, managed data storage and server endpoints, then invite a handful of testers. You validate the concept with real interaction, not a survey about a mockup.
Ready for demo days and investor updates
A dead link or a broken form undermines an otherwise strong pitch. Because every generated page is published to the edge and tested by BYOB's testing agent, the site stays fast and the forms keep working while you focus on customers. You can attach the company domain, add password-protected pages for private decks, and publish changelog posts so the site visibly signals momentum to investors and early users.
Keep iterating after the launch
Startup positioning changes weekly, and the website should not resist that. Rename a plan, reorder the homepage, swap testimonials or adjust the signup flow by describing the change. Every edit is versioned, so a failed experiment is one rollback away. If a technical co-founder later joins, they inherit a clean repository with version history instead of a proprietary builder they cannot extend.
Costs a seed-stage budget can live with
Paying for a bespoke site, a publishing plan and a form tool before you have revenue is a poor use of runway. One BYOB project covers generation, publishing, domains, email and analytics, replacing several subscriptions. Start on the free tier to get something in front of people, then move to a paid plan only when custom domains, higher traffic or team access are genuinely needed.
FAQ
Frequently Asked Questions
Can BYOB build both a landing page and a MVP?
Yes. It starts as a marketing site and grows into an app with login, data storage and protected pages inside the same project.
How quickly can a founder launch?
A first version can be generated and published in the same session; the exact time depends on how much wording and structure you want to refine.
Will we own the code if we raise money?
Yes. BYOB exports a standard repository as a ZIP, so a future engineering hire can take over or rehost it.
Can we collect emails before the product exists?
Signup and waitlist forms are generated with the page, and submissions arrive in the project inbox.
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.