Patreon Patreon is a membership platform that makes it easy for artists and creators to get paid online. It operates as a marketplace allowing creatives to fund their work via one-off payments or subscriptions. Visit ↗
BYOB New inbox in every project
Build Where Buyers Meet Sellers Commerce,connected.
Launch a multi-vendor marketplace with product listings, seller profiles, and search — ready to transact.
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.
Fiverr Fiverr is the largest online marketplace where digital freelancers connect with clients to offer digital services such as graphic design, copywriting, voiceovers, music, and film editing. Visit ↗
Ko-fi Ko-fi is the easiest way to start making an income directly from fans. It allows creators to accept donations, create membership tiers, open an online shop, and make money doing what they love. Visit ↗
Depop Seller storefronts and search that scales. Visit ↗
Reverb Buyer and seller flows in one marketplace. 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 online marketplace builder generates the two-sided structure a marketplace needs: category and listing pages, search and filters, seller profiles, and buyer enquiry or checkout flows. BYOB builds this on, then lets you add authenticated seller accounts, data storage and payments through built-in payments.
Two audiences, one structure
A marketplace has to serve buyers and sellers with the same site, and that shapes every page. Buyers need categories, search, filters, listing detail, seller reputation and a clear way to act. Sellers need a place to publish what they offer and to see interest. BYOB starts from that split: it drafts the public browsing experience and the seller-facing pieces as separate, connected areas so neither side feels bolted on. You describe the category structure and the actions that matter, and the generator lays out the navigation, listing templates and enquiry paths to match.
Listings, categories and search
Discovery is where marketplaces win or lose. BYOB generates category pages, filtered listing grids, individual listing detail views and search entry points, then wires them to your data so results are real rather than hard-coded. Filters can reflect the attributes your category actually uses - location, price, condition, availability - instead of generic fields. Because each page is editable, you can rename a category, reorder filters or add a promoted placement by chatting or selecting the element. Structured headings and descriptive URLs help search engines understand the catalogue as it grows.
Seller accounts and stored listings
On the seller side, BYOB can extend the same project with data and login from Better Auth. Sellers create accounts, complete a profile and submit listings that are stored as records rather than blog posts. A seller dashboard can show their items, enquiries and status, with role checks so only the owner edits a listing. Buyers can register to save searches or message sellers. This is the point where a marketing site becomes a marketplace application, and it happens inside the project you already started.
Payments without overpromising
Payments deserve a straight answer. BYOB connects to built-in payments for checkout and subscriptions; it does not ship a native escrow or automatic seller-payout system, and anyone claiming a one-click template does is overselling. You can take payment from buyers through a supported provider, record orders in your data, and add commission logic as generated code. For markets that need split payouts at scale, plan for custom work or a provider that specialises in marketplace settlement. Being honest about that boundary keeps the build on solid ground.
Grow into a full application
As volume grows, the same BYOB project absorbs features that would otherwise force a rebuild: saved searches, reviews, moderation queues, admin dashboards and notification emails. Analytics via Fruitalytics shows which categories attract traffic, and the app builder adds custom workflows when a template runs out. When you are ready, publish to the edge with a custom domain in one click, or export the code as a ZIP. The marketplace stays yours, in code you can read and move.
FAQ
Frequently Asked Questions
Can BYOB build a multi-vendor marketplace?
Yes. Generate the buyer-facing catalogue first, then add authenticated seller accounts, data storage and a seller dashboard in the same project.
How do sellers add listings?
Sellers sign in and submit listings that are stored as data records; an admin view can approve or moderate them before they appear publicly.
Does BYOB handle payouts to sellers?
No. BYOB supports buyer payments through built-in payments, but automatic split payouts need custom logic or a provider built for marketplace settlement.
Can buyers search and filter listings?
Yes. Listing grids, category pages, search and attribute filters can be wired to your live data so results reflect current inventory.
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.