From your laptop
to a link.
A small idea, big enough to share.
A game, a handy tool or a website for your book club, made with Claude, ChatGPT or another AI. Choose the folder, enter your email address and get a link you can share with anyone.
Free, no account needed. Confirm using the button in your email.

Why paddenstoel?
Websites spring up like
mushrooms from the ground.
With AI, you can make a game, tool or small website in no time. We call these websites mushrooms. Here, you give them a home online.
- No account just your email address
- Static websites HTML, CSS & JavaScript
- Up to 25 MB per website
- Hosted in Europe with OVHcloud, in France
From ‘take a look’ to ‘give it a click’.
No server to choose, no complicated settings. Here's how it works:
-
1
Make something fun.
Build a game, a small tool or a website with Claude, ChatGPT, Codex or your favourite AI.
Your idea, your files. -
2
Give it a home.
Choose your website folder and enter your email address. No account, no login screen.
Up to three sites per email address. -
3
Share your link.
Click the link in the email and your website goes online at its own address. Later, you can publish a new version at the same address.
Share it with anyone you like.
No idea yet? Pick a seed.
Not every idea has to be a startup. Copy a prompt, paste it into Claude or ChatGPT and put the result online here.
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Seed no. 1
A game for the kids
Make a simple game for 6-year-olds: a hedgehog jumps over mushrooms and collects apples. Make it as a single HTML file containing everything, and don't use anything from the internet.
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Seed no. 2
A page for your club
Make a website for our book club: what we're reading now, when we're meeting and who's sorting out the coffee. Make it as a single HTML file containing everything.
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Seed no. 3
Times tables practice for the class
Make a times tables practice game for children in Dutch primary school group 5 (ages 8–9): ten questions against the clock, with a score at the end. Make it as a single HTML file containing everything, which also works on a phone.
Good to know
Can't find your question? Ask us.
What can I put online?
Ready-made static websites: HTML, CSS, JavaScript, images, fonts and PDFs. Choose the folder containing index.html, or a single HTML file. No server runs for your site: saving data in the browser works, but submitting forms doesn't. Don't put any secrets or private information on it, such as your surname or your school.
Can someone else change my website?
No. In My mushrooms, you can update only your own websites after logging in. Enter the login code yourself; never give it to your AI agent. If you ask your own AI to send a new version, we email you a separate update code. Give that only to that agent in the conversation where you requested the update. Publish a new version yourself.
I've forgotten my website's address. What now?
Log in to My mushrooms using the email address you used to put your website online. You'll receive a 6-digit code by email, then you'll see all your websites. Forgotten which email address you used instead? Enter your site's address there.
How do I remove my website?
Log in to My mushrooms and choose “Remove this website” for your site. The website goes offline immediately and no longer counts towards the three sites per email address. You can restore the website there for up to 7 days afterwards. Just want to hide your website for a while? Choose “Take offline temporarily”: your spot stays yours. Can't log in? On Remove your site you can also do it by email.
Can my AI put the site online?
Yes. Click Put your website online and choose “With your AI agent”. Copy the prompt there and give it to your AI. If your AI can send files itself, you'll then get an email from us. Otherwise, choose the files yourself using the button above. Your site only goes online after you confirm by email.
What does it cost?
Nothing. A mushroom stays online for free for six months. You'll never pay anything unless you choose to. All about pricing.
Where is my website hosted?
In Europe. We host with OVHcloud, a French company, in a data centre in France. More in our privacy policy.