Chat to change anything
Ask in plain words. The site follows.
Design with ease.
Describe the website you want. Katzero designs it, builds it and puts it online. Keep talking until it feels right.
Say what you want.
Watch it appear.
Keep talking.
Mention the mood, the pages and the things you sell. Katzero builds a real site you can change one sentence at a time.
Gateway to your own corner of the web.
Built on the best.
Six models from the companies leading the field, ready in one menu.
Katzero turns one sentence into a website you can share, change and publish before your coffee gets cold.
A live preview, always
Phone, tablet and desktop, side by side.
Every version kept
Go back to any step in one tap.
Publish in one tap
Your own address on katzero.com.
The code is yours
Open it, read it, edit it by hand.
Six models to choose from
Pick the temperament that suits the brief.
Our vision: a website for anyone with an idea.
No templates to wrestle and no code to learn. Say what you are making, and keep shaping it until it feels like yours.
You will find yourself among bakers, makers, shops and studios.
Nothing you make is ever overwritten.
Every change is saved with the sentence that made it. Step back whenever you like.
How versions work
A starting point for every idea.
Pick the mind behind your site.
GPT-5.6-SolGPT-6-AstraGhostcat-Candy-2.9Claude Fable 5.1Claude Opus 5.5Claude Sonnet 5.5Gemini 3.8 FlashDeepSeek V4.1 Flash
Completely free.
Every model, every version and publishing on your own katzero.com address, at no cost. Fair-use limits keep it fast for everyone.
Pricing detailsKatzero
Free
Everything, with fair-use limits
Models
All 6
Pick any model, any time
Publishing
Included
Your own name.katzero.com
Start with a sentence.
Get startedSee what others made.
Browse examplesDesign
with ease.
Describe a website. Katzero designs it, builds it and puts it online.
Swipe through
what it makes.
Streetwear dropA dark launch page with a countdownStreetwear drop
Say what you want.
Watch it appear.
Keep talking.
Mention the mood, the pages and the things you sell. Then change it one sentence at a time.
Among bakers, makers, shops and studios.
Everything you need,
nothing you don't.
Change anything by asking
Plain words. The site follows.
Looks right on every screen
Phone, tablet and desktop, all at once.
Every version kept
Step back to any moment in one tap.
Publish in one tap
Your own name.katzero.com address.
Pick the mind
behind your site.
GPT-5.6-SolGPT-6-AstraGhostcat-Candy-2.9Claude Fable 5.1Claude Opus 5.5Claude Sonnet 5.5Gemini 3.8 FlashDeepSeek V4.1 Flash
Start with a sentence.Get startedSee what others made.Browse examplesFrom the blog
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