NewNixSite — the free AI website builder

BTA Labs

Building tech

BTA Labs builds AI tools that run on your own keys. Describe a website and NixSite builds it live, or run every coding agent side by side with Nix Agents.

btalabs.dev/buildLive

The NixSite builder: a chat on the left asking for changes, a live preview of a design-studio website on the right

Works with the AI you already use

Claude CodeCodexGemini CLIGitHub CopilotCursoropencodeClineMistralDeepSeekOpenRouterOllamaPerplexityConductorWarpWindows TerminalGhosttyWezTermOrcaBridgeMindv0LovableBolt.new

Explore products

Two tools, built on the AI you already own.

A website builder in your browser and a desktop home for your coding agents. Both run on your keys.

NixSiteAI website and app builder · Browser · Free

Describe it. An agent builds it.

Pages, styles and a working backend, written file by file while you watch the preview.

Your own keyPay the provider directly, no markup.
Six templatesStart from a finished site in one click.
Backend includedAPI routes that deploy to Cloudflare Pages.

Start building Learn more

The NixSite builder: a chat on the left, a live website preview on the right

model providers: 9
starter templates: 6
platform fee: $0

Nix AgentsAgent development environment · Windows · Beta 0.1.10

Every coding agent, one window.

Run Claude Code, Codex and Gemini CLI side by side, each in its own worktree and real terminal.

Worktree per agentAgents never step on your checkout.
Real terminalsThe CLIs run as themselves, locally.
Your subscriptionsNothing is proxied through us.

Download free Learn more

Nix Agents: choose a CLI agent such as Claude Code or Codex, or connect a model provider

agent CLIs: 25+
panes in parallel: 16
plan, no card: Free

NixSite templates

Start from a finished site.

Six finished sites. Open one, then tell the AI what to change.

Inside NixSite

A real project, not a chat window.

Pages, styles, scripts and an API, written by an agent you can watch and correct.

Watch every file being written

The preview updates as the agent writes each file, in a sandbox that cannot reach your keys.

Your key, your bill

Calls go straight to the provider. No markup, no credits, no middleman.

Edits in plain words

The agent edits the exact lines that need to change, so small requests stay fast and cheap.

Every screen size

Check desktop, tablet and phone without leaving the builder.

Export and deploy

Download a ZIP and upload it to Cloudflare Pages. The API routes come with it.

Pricing

Billed yearly Save 20%

Free

Basic

$0/mo

No card required

Free chat and code, with limits.

Free Chat — unlimited conversations
Free Code — 1 session, 1 terminal
1 agent CLI

Create an account

Starter

Builder

Recommended

$50/mo

Billed monthly

Unlimited everything, plus priority.

Everything in Starter
Unlimited sessions and terminals
1,000 monthly credits for Loop and SwarmComing soon
Priority support
Early access to new features
Plugins and connectorsComing soon

Coming soon

Paid plans are not on sale yet. The Free plan is open to everyone today.

Feature comparison across Free, Starter and Builder
Compare	Free	Starter	Builder
Code sessions	1	3	Unlimited
Terminals per session	1	Unlimited	Unlimited
Monthly credits	—	200	1,000
Loop (1 credit / task)	—	Coming soon	Coming soon
Swarm (1 credit / task)	—	Coming soon	Coming soon