Selected UI kit: shadcn-svelte

Ship a full web app from one prompt

Describe it once. BYOB plans the UX, writes production-ready SvelteKit code, connects data and deploys, then keeps everything editable while you iterate in the three-pane workspace.

Workspace Layout

Code, intent, and rendered output stay visible together so the project remains inspectable, editable, and shippable.

Left Pane: Editor

Full-featured code editor where AI-generated frontend UI and backend API routes appear ready for refinement.

Center Pane: AI

Command center. Plan, ask, implement, test, recover, and drive follow-up edits.

Right Pane: Preview

Real-time updates. See your UI changes and test your API endpoints instantly without manual compilation.

Tip: Start with a prompt, review the preflight plan, then let Act Mode implement.
shadcn-svelte local primitives

shadcn component smoke test

This section uses local shadcn-style primitives under $lib/components/ui, matching the official copied-component model.

Composable Token based Ready

Generated workspace shell

Card.Root, Card.Header, Card.Content, Card.Footer, Button, and Badge are local primitives styled through shadcn-compatible CSS variables.

The quiet borders, compact radius, muted panel, and focused action row should resemble shadcn-svelte's documentation examples.

Validation checklist

Source-visible shadcn primitive usage.

  • Card.* namespace components
  • Button default and outline variants
  • Badge default, secondary, and outline variants

Everything you need to ship

BYOB combines planning, implementation, preview, testing, backend work, deployment, analytics, and Codex agent access in one workspace.

Serverless Backend

AI writes secure endpoints, auth, and data pipelines that run on the edge.

Supabase Ready

Supabase Integration

Connect your Supabase project and keep tables, policies, and realtime data synced as the AI edits.

BYOB DB

Fully managed SQLite storage that scales across the cloud. Seamlessly explore data, schema, and ER diagrams while the system handles provisioning.

Visual Editing Mode

Click inside the live preview, and the AI updates the exact files for you.

Preflight Planning

Refine the prompt, choose guided or fast setup, review UX direction, and approve the plan before code generation.

Model Swapping

Start sessions on Gemini, Grok, GPT, or Claude. BYOB locks model per chat session for consistency.

One-Click Deploy

Publish frontend and backend to Cloudflare's edge in seconds with zero DevOps.

Deployment Analytics

Inspect Worker traffic, errors, CPU timing, subrequests, and custom-domain status after publish.

Team Collaboration

Share projects with teammates and coordinate access so active sessions do not overwrite each other.

Custom Domains

Add root or subdomains with guided DNS records, verification hints, and automatic SSL activation.

Image Understanding

Drop wireframes or screenshots; the AI generates pixel-perfect UI.

Voice Coding

Dictate logic or database requirements and the assistant implements them.

Time Travel

Save snapshots with notes and roll back when the AI drifts.

Project Controls

Restart, stop, or delete your project and monitor builds from the dashboard.

Live Preview & Testing

Hot Module Replacement keeps the browser view and backend responses in perfect sync.

AI Testing Agent

Run full-site or feature-based testing sessions with browser extension support and structured reports.

Native Codex Access

Use container Codex from chat, connect a remote Codex TUI through AIR, or attach local-billed Codex over SSH.

Project Templates

Start from blank, private, shared, or public templates, then save successful projects as reusable templates.

SEO & LLM Output

Generate metadata, sitemap and indexing assets, and LLM-friendly page access patterns.

Context Tracking

Monitor context fill and reset at the right time so long sessions stay stable and consistent.

Flexible Pricing

Use pay-as-you-go credits or upgrade to Pro, Max, or Enterprise plans with included monthly credits.

Change History

Track every frontend and server-side change with descriptive snapshots.

Multi-Model Intelligence

Choose the optimal brain for your specific task.

Advanced

Gemini 3.1

Exceptional context window and coding speed for large UI systems.

Google's finest

Creative

Grok

Innovative brainstorming, design intent, and experimental flows.

xAI's rebel

Recommended

GPT-5.3 Codex

Deep reasoning for complex backend logic and integrations.

OpenAI's best

Strategic

Claude Sonnet 4.6

Thoughtful architecture guidance and beautiful UI generation.

Anthropic's ally

Dual Operating Modes

The assistant adapts to your workflow with two distinct modes.

Chat Mode

Strategic Planning & Analysis

Key Use Cases:

  • Architectural planning and validation
  • In-depth code/concept explanation
  • Brainstorming features and flows

Act Mode

Code Generation & Execution

Key Use Cases:

  • Creating new files and components
  • Modifying existing codebases
  • Installing project dependencies

Professional Workflow

Start conversationally, approve the shape, implement with Act Mode, then test and deploy.

1

Describe

State the product outcome, audience, constraints, and required integrations.

2

Preflight

Review UX direction, data choices, and the complete implementation plan.

3

Implement

Generate files, install dependencies, and wire services using Act Mode.

4

Test & Refine

Run feature-based or full-site tests, save checkpoints, and refine safely.

5

Deploy

Publish to a BYOB URL, connect domains, and inspect production analytics.

Powerful Features

Everything you need for modern web development, integrated seamlessly.

Visual Editing Mode

Click any element in Live Preview to modify it instantly. Changes are automatically written back to source code.

Version Control

Built-in snapshots with instant rollback capability. Save versions with descriptive messages.

Team Collaboration

Share projects with teammates and coordinate access across active work sessions.

Templates

Start from blank, private, shared, or public templates and save reusable project foundations.

Custom Domain Wizard

Connect root or subdomains with guided DNS records, verification, and automatic SSL activation.

Deployment Analytics

Inspect live Worker traffic, errors, CPU timing, subrequests, and deployment status.

Testing Agent

Run full-site or feature-based tests with extension support and detailed reports.

Native Codex Access

Use BYOB-billed container Codex from chat or remote TUI, or use local-billed SSH for native shell access.

Context + Model Guardrails

Track context fill and keep one model per session to reduce long-thread drift.

Pay-As-You-Go + Subscriptions

Choose flexible top-ups or Pro/Max monthly plans with included credits.

Live Preview

Real-time, interactive preview with instant updates. No manual compilation needed.

Customizable Layout

Swap panes, drag to resize, or minimize sections. Adapt the workspace to your preferences.

Change History

Comprehensive log of all changes with version snapshots. Track your project evolution effortlessly.

Supabase Integration

Supabase Ready

Bring your Supabase project into the workspace. Define tables, policies, and realtime APIs using concise prompts, run migrations, generate TypeScript types, and keep the schema synced with generated code.

Define Tables

Prompt the AI. BYOB scaffolds Supabase tables, columns, and policies instantly.

Handle Auth

Generate secure sign-ups, row-level security, and token flows without writing boilerplate.

Test & Deploy

Preview Supabase endpoints while editing UI components, then ship everything with one click.

BYOB DB

BYOB DB is a managed SQLite data service for apps that need durable storage without separate database operations or manual provisioning.

Schema Explorer

View tables, columns, and ER diagrams instantly via our browser-based database viewer.

SQL Scratchpad

Run read-only queries against BYOB DB for debugging, analytics, or demos without leaving the workspace.

Managed & Super Scalable

The platform keeps SQLite fast and reliable across distributed edge nodes—no ops required.

Native Codex for BYOB projects

Use Codex from the BYOB chat UI, connect a remote Codex TUI through AIR, or attach local Codex over SSH when you want native shell access to the project container.

npx -y byob-agent-mcp codex install

UI and remote Codex are billed through BYOB credits

SSH mode uses your local Codex or OpenAI billing

Chat can inspect; Act can edit, install, test, and deploy

Credits and Plans

Start with credits, then upgrade when BYOB becomes part of your regular build workflow.

Pay as you go

$0

$1 = 100 credits. Top up when you need more and keep unused credits.

Pro

$25/mo

Starts with 2,000 credits/month plus BYOB DB, testing, custom domains, and collaborators.

Max

$79/mo

Starts with 8,000 credits/month, rollover, priority model access, and priority support.

Enterprise

Custom

White-label, private cloud, SSO/SAML, governance, custom agents, and dedicated support.

⚡ Full-Stack API Integrated

These requests hit the /api/welcome endpoint. BYOB's AI now builds your frontend UI and your backend serverless routes.

1. Test GET Route

2. Test POST Route

Ready to Supercharge Your Development?

Ship with AI coding, custom domains, integrated testing, and flexible pricing in one workspace.

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