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BYOB New inbox in every project

Ship a full web app from one prompt.

If you can describe it, BYOB can build it.

Start building for free See the workflow

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

Online
Today4
Done11
Streak6d
Open live app ↗
Prompt Product

Drag the handle. Or focus it and use the arrow keys.

Built with BYOB

Real apps, live now.

Production sites built and shipped in BYOB. Open one, then start your own.

CHE4OS personal homepage built with BYOB CHE4OS Personal site, writes and builds View livePitchroom sales practice app built with BYOB Pitchroom AI sales call practice app View liveTURI wellness store built with BYOB TURI Wellness shop, rituals and mints View livePawpal pet care app built with BYOB Pawpal Pet care circle, sitters and credits View liveHuegames learning games site built with BYOB Huegames Games catalog, play your way up View live
View full showcase

Fresh from the community

See what builders ship, or start from an example.

View showcase →

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'>
2type Task = { id: string; title: string; done: boolean }
3let tasks = $state<Task[]>([])
4
5function toggleTask(id: string) {
6task.done = !task.done // just added by BYOB
7}
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

Online
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.

  1. 01 Describe the product Start with the outcome, audience, and any constraints. BYOB turns the idea into a practical build plan.
  2. 02 Shape the UX Review the proposed flows, screens, data needs, and visual direction before code starts moving.
  3. 03 Generate the app Tool Mode writes SvelteKit code, connects integrations, and keeps each change visible in preview.
  4. 04 Test and refine Ask for edits, roll back when needed, run checks, and keep the project editable instead of disposable.
  5. 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
npm
npx -y byob-cli codex install

Approve 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.

Rated 4.9/5 by builders shipping with BYOB.

Start building
  • Clean SvelteKit code you own
  • One-click deploy + rollback
  • Pay as you go pricing

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

Popular

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 plans
View full pricing

Need white-label and SSO? Talk to us →

FAQ

Frequently Asked Questions

Everything you need to know about BYOB

What is BYOB?
BYOB (Build Your Own Buzz) is an AI-powered workspace that lets you build, edit, and launch web apps just by chatting. You describe it, we build it.
Do I need to know how to code?
Not at all. You can build complex apps using plain English. However, if you are a developer, we provide a full code editor for you to tweak the details.
What kind of apps can I build?
You can build landing pages, dashboards, tools, blogs, and interactive web applications. The platform is optimized for modern, fast-loading web tech.
What technology does my app use?
Your apps are built on **SvelteKit** and **Vite**. This ensures they are incredibly fast, SEO-friendly, and use industry-standard code.
Do I own the code?
Yes, 100%. You can even export your project as a ZIP file.
How do I share it with others?
Use Publish to deploy your project to a live URL in seconds. You can then share that URL directly, enable public showcase listing, or connect your own custom domain.
Can I connect Codex, Claude Code, or Antigravity?
Yes. Install BYOB CLI with npx -y byob-cli codex install, npx -y byob-cli claude install, or npx -y byob-cli gemini install. Approve access, and the installer configures your agent plus the local byob command.
How does BYOB keep agent access safe?
Agent access uses a BYOB approval flow tied to your login. Grants are account-owned, project access is checked whenever a tool runs, access tokens rotate, and you can revoke agent grants later from BYOB tooling.
Can BYOB show git history and diffs?
Yes. BYOB CLI and Agent MCP can list recent commits, compare refs, and show what changed since the last deployment. Use byob git log, byob git diff, or byob git diff-since-last-deploy with a project id.
Can I create a Git token for external access?
Yes. byob git token create creates a project-scoped BYOB Git PAT. The raw token is shown once, list commands only show metadata and token prefixes, and tokens can be revoked with byob git token revoke.
How does pricing work?
BYOB supports both **pay-as-you-go credits** and **Pro/Max subscriptions**. You can start with top-ups, then upgrade to monthly included credits when your build volume grows.
Do credits expire?
No, your purchased credits remain in your account until you use them.
Can I use a custom domain?
Yes. Paid plans include a guided custom domain flow with DNS record instructions, verification checks, and automatic SSL activation once your records propagate.
Can I see deployment analytics?
Yes. After publishing, BYOB can show Cloudflare Worker analytics such as requests, errors, error rate, CPU timing, subrequests, and recent traffic over selectable time windows.
Can I roll back a deployment?
Yes. BYOB records deployments against saved commits. Agents and CLI users can check deployment status and roll back by redeploying a known commit hash with byob deployment rollback.
Does BYOB include testing?
Yes. Paid plans include an AI testing agent with full-site and feature-based modes. Coding agents can also test the preview URL directly, and use the BYOB Testing browser extension when live clicks, screenshots, console logs, or network capture are needed.
Does BYOB support file storage?
Yes. Paid plans can use BYOB-managed object storage with a deployed Worker binding, app-signed browser route, lifecycle status checks, and smoke tests so file operations can be verified without exposing provider credentials.
Can agents help with credits or payments?
Yes. BYOB CLI exposes credit balance and payment URL tools. Agents can show you a BYOB pricing or top-up link, but they never collect card details or create checkout links themselves.
Can I switch AI models during one chat session?
BYOB locks one model per chat session to keep output consistent. To change models, start a new session.
What is context tracking in chat?
Context tracking shows how full the active session memory is. If context gets too high, start a new session or reset context for cleaner, more consistent output.
Can I use my own images?
Yes, you can upload images directly into the chat. The AI can even analyze your images to match designs or build what it sees.
What happens if I delete my project?
If you delete a project, it enters a 30-day grace period. After 30 days, all data associated with it is permanently erased from our servers for your privacy.
Is the AI secure?
We use top-tier AI models with a privacy-first layer. We do not use your private code to train models, and our partners adhere to strict data security standards.
Can I edit the code manually?
Yes. We provide a built-in VS Code-like editor where you can manually change files, install packages, and edit code alongside the AI.
Can I use BYOB on my phone?
Yes! BYOB is a Progressive Web App (PWA). You can install it on your phone and build or edit your websites on the go.
What is BYOB DB?
BYOB DB is a managed SQLite database (powered by Cloudflare D1) that you can create directly from the workspace. It includes a schema viewer, a data browser, and SQL inspection tools—no external database setup required.
Can BYOB send emails?
Yes. Paid plans include a managed email sender that BYOB provisions for your app. You can send transactional emails, view delivery logs, and test the sender—all without configuring an external email provider.
How does autosave and version control work?
BYOB automatically saves your project as you work. You can also create manual commits with human-readable notes, browse your full version history, compare changes between any two points, and restore any previous version instantly.
What is Preflight Planning?
Preflight Planning is the guided setup flow that runs before BYOB writes any code. It refines your prompt, identifies features, suggests a UX direction, helps you choose a data strategy, and builds a complete implementation plan for the AI to follow.
Can I export my project?
Yes. You can download your entire project as a ZIP file at any time. Because BYOB generates standard SvelteKit code, you can continue development locally or host it anywhere you choose—there is no vendor lock-in.

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.