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BYOB New inbox in every project
AI Mailchimp Landing Page Builder Alternative
Mailchimp earned its reputation in email, and its landing pages are built to feed a list. That is useful if email is the whole plan, and limiting if the page itself needs to sell. BYOB OnePage approaches the same job from the other direction.
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.
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 →
BYOB OnePage is a Mailchimp landing page alternative focused on the page itself. Describe your offer and AI drafts a complete layout with hero, features, proof, and an opt-in form. Entries arrive in your project inbox, and you can export them into Mailchimp when you want email follow-up.
What Mailchimp landing pages do well
Mailchimp's landing pages are convenient when your audience and your email list are the same thing. Pick a template, connect it to a list, and published sign-ups flow straight into your campaigns. The trade-off is control: layouts follow Mailchimp's templates, and the feature is tied to your Mailchimp plan. For a simple opt-in that funnels directly into a newsletter, that is fine. The friction appears when you want a distinctive page with its own structure, or when you want the form's data somewhere other than a Mailchimp audience.
Prompt-first building versus template editing
BYOB OnePage starts with a description, not a template gallery. Tell it the product, the audience, and the action you want, and it drafts a full page: headline, benefits, a proof section, pricing or offer detail, a FAQ, and a form. You then restyle by clicking elements and rewrite by typing. This suits founders who have the message in their head but not a layout in mind. The generated structure is a starting point you can bend, whereas a template asks you to fit your message into someone else's arrangement.
Keeping Mailchimp for what it is good at
Choosing BYOB for the page does not mean abandoning Mailchimp. Treat them as two stages: BYOB captures the contact, and Mailchimp handles the sequence that follows. Export form entries from your project inbox and import them into the audience you send from. If your workflow depends on Mailchimp automations, this split keeps them intact while giving you a page you actually designed. You are not forced into an either-or decision, and you avoid paying for page features you will not use.
Design and layout control compared
Mailchimp gives you templates with limited structural changes; moving a section usually means choosing a different one. BYOB generates sections as independent blocks you can reorder, delete, or duplicate, and the styling controls cover colour, type, spacing, and images. If the page needs a specific rhythm, such as proof before pricing or a single dominant call to action, you can arrange it directly. That level of control is the main reason someone switches page builders while keeping their email provider, and it is where the generated approach earns its keep.
Cost shape and when to switch back
Mailchimp prices around contacts and sending volume, so a growing list raises the bill regardless of how many pages you run. BYOB is free to start, with paid plans for custom domains and heavier usage, which keeps page costs separate from list costs. If your site is essentially a newsletter front door and the templates fit, staying with Mailchimp is reasonable. Switch to a dedicated builder when the page needs to do more than collect an address, or when you want to own the layout rather than rent a template.
FAQ
Frequently Asked Questions
Can I use BYOB together with Mailchimp?
Yes. Build and host the page in BYOB, then export captured contacts and import them into Mailchimp for email sequences. Sync is manual rather than automatic.
Does BYOB replace Mailchimp entirely?
Only if you do not need Mailchimp's email campaigns and automations. If you do, use BYOB as the landing page and Mailchimp as the follow-up engine.
Can I import my existing Mailchimp list into BYOB?
BYOB stores form submissions in a project inbox; it is not a contact management system. Keep your list in Mailchimp and export new entries to it.
Are the generated forms connected to Mailchimp automatically?
No. Submissions land in your BYOB inbox, and you move them across by export and import.
Is BYOB faster than Mailchimp?
For page building, BYOB is free to start. Compare your Mailchimp plan against BYOB's paid tiers for domains and usage, since the two bill differently.
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.