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BYOB New inbox in every project
AI App Builder with Database
Apps become useful when they remember things. BYOB is an AI app builder with a database built in, so the moment your idea needs records - tasks, customers, bookings - the storage layer is already there rather than a separate project.
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 →
An AI app builder with database combines prompt-driven interface generation with persistent storage. BYOB includes managed SQLite on Cloudflare D1, reads your tables when writing queries, and provides a schema viewer and data browser so you can inspect and edit records without leaving the workspace.
Storage that arrives with the app
Many ideas stall at the point where data needs to persist. Connecting a database usually means provisioning a service, managing credentials and learning an ORM before the first feature works. BYOB removes that setup: each project can use managed SQLite through Cloudflare D1, provisioned as part of the workspace. You describe the records you want to keep, and the generator creates the tables and the code that reads and writes them in one motion.
How the AI understands your schema
The generator is not guessing at your data model. It reads the current schema before it writes anything, so new components reference columns that actually exist. Ask for a task list and it will create a table with fields for title, status and due date, then generate the form, the list and the update action that fit those fields. When you change the model - say, adding a priority - the surrounding interface is revised to match instead of drifting out of sync.
Schema viewer and data browser
You should be able to see what is stored without writing a query console. The BYOB workspace includes a schema viewer that lists your tables and their columns, and a data browser for viewing and editing individual rows. That is useful during development, when you want to seed a few sample records, and later, when a customer asks you to correct an entry. Because it operates on real tables, what you see there is exactly what the app reads.
App shapes that need real storage
Once persistence is available, the range of things you can build widens considerably. Typical examples include task and project trackers, simple CRMs that hold contacts and notes, booking systems with availability, inventory lists, and community features such as comments or upvotes. Each of these needs the same foundation: tables, typed queries and forms that write back. BYOB generates all three together, which is why a working prototype needs conversation rather than a week of plumbing.
When to reach for your own data source instead
Managed D1 suits most new projects, but it is not the right answer for every team. If you already depend on your own data source features such as extensions, complex joins at scale, row-level security policies or an established Supabase project, keep your existing backend. BYOB can connect to Supabase and generate a frontend for it, giving you durable your own data source with the same prompt-driven workflow. Start with the built-in database, and switch when your requirements genuinely demand it.
FAQ
Frequently Asked Questions
Which database does BYOB use by default?
Managed SQLite on Cloudflare D1 is included with each project, so data persists without any external setup.
Can I inspect or edit stored records?
Yes. The workspace includes a schema viewer and a data browser that let you see tables and modify rows directly.
Does the AI keep the front end in sync with schema changes?
It reads your current schema before generating code, so forms and queries reference real columns; changing the model updates the related UI.
Can I use your own data source instead?
Yes. Connect an existing Supabase project if you need your own data source features; BYOB generates the frontend against your schema.
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.