Coming soon: a plug-in home server that keeps your Baumeister projects online 24/7, even when your computer’s off.
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Free for Windows & Mac

Your computer is a server.
Stop renting one.

Build a website or app with AI and host it from your own computer. Free.

Baumeister is free self-hosting software that turns your Windows or Mac computer into your own private app and website host.

A coffee shop site. A booking page. A Flask API. Describe it, publish it, and keep the $20–200 a month a cloud host would charge you.

Download for Windows ↓ Download for Mac ↓
Windows 10 or 11, or a Mac with Apple silicon · version 1.2.26 · no credit card
Baumeister's Projects page: a coffee shop, a dog walker and a wedding site live with new messages waiting, and a Python app
Freesoftware
Freehosting, on your hardware
3 freeweb addresses
25 freeAI updates a month
How It Works
Baumeister's New Project page: Describe it, I already have files, or I use my own tools
1

Describe it.

Write what you want the way you’d explain it to a friend. ChatGPT, Claude, Gemini or Baumeister’s own assistant builds it. Already have a site or an app? Upload it.

Fern & Filter: a cozy Portland coffee shop site with a chalkboard menu, hours and a way to say hello
2

Hit Publish.

It’s live at a free address like fernandfilter.baumeister.host, or on your own domain. HTTPS is set up for you.

Change it with AI: the owner asks for a new menu item and weekend hours, and Claude shows what it will change before using one of the month's free updates
3

Change it.

Ask for new hours, a price or a photo in plain words. Claude shows what it’ll change, then you publish. 25 a month are free, no API key needed.

Baumeister's Inbox with messages from the coffee shop's contact form
4

Run it.

Messages, bookings and RSVPs land in your Inbox and you get an email for each one. Reply, mark it done, or let your staff handle it.

“What happens when my computer is off?”

Your site stays up.

Turn on Safety Net (free) and visitors still see the latest version of your site while your computer is off, asleep or restarting.

Forms wait for you.

Contact forms, sign-ins and checkout work again as soon as your computer’s back on.

You get an email.

If it’s been off for 15 minutes, and again when it’s back.

Want it on all the time? Leave an old laptop running, or get on the list for the Baumeister box.

Examples
Example: a cozy Portland coffee shop site with a chalkboard menu
Coffee shop, Portland
Example: a dog walker's booking page
Dog walker’s booking page
Example: a wedding page with the schedule and an RSVP form
Wedding with RSVPs

Example sites made in Baumeister for this page.

For Developers

Real hardware. Real server. Nothing to maintain.

Baumeister's Server page: disk, memory and processor, and a Flask app running

A Flask API, running on your laptop.

Start, stop, restart and read the logs. Disk, memory and processor for the whole machine.

Baumeister's coding agent box with a line to paste into Claude Code, Cursor or Codex

Your agent writes it. Baumeister serves it.

Copy, paste into your agent, press Refresh.

Pricing

Free. Really.

You already paid for the hardware. Hosting on it costs nothing. You only pay if you want more than 3 web addresses.

Baumeister
$0
Software, hosting and 3 web addresses.
Typical cloud host
$20–200+/mo
And it goes up with your traffic.
Baumeister software and hostingFree
3 web addresses like yourname.baumeister.hostFree
Your own domains, bought through Baumeister or connected with Cloudflare — no limitFree
HTTPS on every siteFree
25 AI updates to your sites a month, made by Claude (no API key needed)Free
Unlimited AI with your own key (your AI company bills you; we add nothing)Free
Lite: 10 web addresses, plus 5 domains set up at another company (like GoDaddy)$6.99/mo
Pro: 50 web addresses, plus 100 domains set up at other companies$12.99/mo

The free plan includes 1 domain set up at another company.

Safety Net keeps your site up while your computer is off Staff sign-ins for just the projects you choose, or just the Inbox Undo any of your last 20 versions Password-protect a site or shared files Your dashboard from your phone, with two-step sign-in Help built into the app

Questions

Do I need to know how to code?
No. Describe what you want and AI builds it: Baumeister’s own assistant with your AI key from Claude, ChatGPT, Grok or Gemini, or copy Baumeister’s instructions into ChatGPT, Claude.ai or Gemini and drop in what it gives you. If you do code, use Claude Code, Cursor or Codex.
What can I host?
Websites (HTML, CSS and JavaScript), Python apps (Flask or FastAPI) and Node.js apps (Node.js needs to be installed on your computer). Baumeister works out which from your files.
Is it really free?
Yes. The software, the hosting and 3 web addresses are free, and so are 25 AI updates to your sites every month, no API key needed. For more, use your own AI key: your AI company bills you directly and we add nothing. Your own domains are free to use when you buy them through Baumeister or connect them with Cloudflare. Paid plans are only for more addresses: Lite ($6.99/month) and Pro ($12.99/month).
Can anyone visit my site?
Yes. Publish and you get a web address anyone can visit, like yourname.baumeister.host. For your own, like yourbusiness.com, buy one through Baumeister (privacy included) or connect one you own with Cloudflare in a couple of clicks. HTTPS is set up for you.
Is my data private?
Your projects and files live on your computer. Setup sends us your recovery email and your computer’s name so your account works. Beyond that, your projects only leave your computer when you publish them, turn on remote access (password plus a code from your phone), or turn on Safety Net, which keeps a copy of your site’s public pages on our servers so it stays up while your computer is off. If your site has forms, email alerts send what visitors wrote through our email provider to you. When you use the AI assistant, your requests and the files it works on go to the AI company whose key you use. Baumeister isn’t built for regulated data like health records (HIPAA) or financial data. More in our Privacy Policy.
Does my computer need to stay on?
Not for people to see your site. Your projects run on your computer, so forms, sign-ins and checkouts need it on. Turn on Safety Net and visitors keep seeing your site while your computer is off, asleep or restarting: the latest version of your website, an app’s public pages as they were when it last ran, or a Back Soon page you write. Baumeister can also email you when your computer has been off for 15 minutes. For always-on, see Baumeister Hardware (waitlist).
What about the Baumeister hardware?
We’re building a small box that plugs into your router and hosts your sites around the clock, so they don’t depend on your everyday computer. It’s not available yet. Learn more and join the waitlist.
Always On

Use your computer, or get the Baumeister box.

Same free software on both. The box is waitlist only for now.

Your computer

Start today

$0

Run Baumeister on your laptop or desktop. Safety Net keeps your site up while it’s off.

Baumeister box

Always on (coming soon)

A small box that plugs into your router and hosts your sites day and night, off your everyday computer.

Waitlist only — join the waitlist

Stop renting servers.
You already own one.

Free for Windows and Mac.

Download Free →