Keen · Build apps with your own Claude subscription

( Features )

Everything Lovable does. On the plan you already pay for.

Keen drives the official Claude Code and Codex apps on your machine, so every build uses your existing subscription instead of credits.

Your subscription, not credits

Live preview in seconds

A React + Tailwind + shadcn/ui starter kit is preinstalled, so new projects are live in about four seconds. Desktop, tablet and phone views.

Every version saved

Each change is a git commit. Restore any version in one click, and nothing is ever lost.

Real database

Connect Supabase and the AI designs your tables. Keen runs the migrations and reports errors back to the AI.

One-click publish

Put your app on the web for free with Cloudflare, at a public address you can share.

Talk, paste, iterate

Speak your prompt, paste a screenshot to copy a design, and click suggested next steps. See tokens used per prompt.

( How it works )

Three steps. No terminal.

Install Keen

Download and open it. Node.js is built in, so there's nothing else to set up by hand.

Sign in once

The setup screen installs Claude Code and opens the official sign-in in your browser. Approve it and you're done.

Describe your app

Type, talk or paste a screenshot. Watch it build, tweak it in chat, then publish.

( FAQ )

Questions

Is using my Claude subscription like this allowed?

Yes, for personal use. Keen runs Anthropic's own Claude Code app on your computer, signed in with your account, which is the supported way to use your plan for your own tools. Keen never reads or forwards your login token.

Where do my projects live?

On your computer, in a keen-projects folder. Each project is a normal Vite + React app with its own git history, so you can open it in any editor at any time.

What does it cost?

Keen is free. AI usage comes out of the Claude or ChatGPT plan you already have, and publishing uses Cloudflare's free tier.

My computer warns me when I open Keen. Is that safe?

Keen isn't code-signed by Microsoft or Apple yet, so you'll see a one-time warning. Windows: click More info → Run anyway. Mac: drag Keen to Applications, then right-click Keen → Open → Open (on macOS 15+, use System Settings → Privacy & Security → Open Anyway).

Which Mac download do I need?

Click the Apple menu → About This Mac. If it says Chip: Apple M1/M2/M3/M4, download Apple Silicon. If it says Processor: Intel, download Intel.

Linux?

Not yet. Windows and Mac come first; Linux is on the list.

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