It turns your brief into a ready prompt for ChatGPT, Claude or Gemini. The AI uses it to generate 50 name candidates in five types, following rules that fit your industry.
AI domain generator: one prompt instead of random names.
Free and without sign-up. By Bernard Zitzer, SEO consultant from Berlin.
Three steps to 50 candidates.
The AI gets a brief and clear rules from you. That’s why the names fit your project.
Fill in the brief
Project, audience, category and tone. Two minutes, that’s all it takes.
Copy it or open it directly in ChatGPT or Claude. You get 50 candidates in five types.
Filter and check
The quick filter does a rough sort. You check availability and trademarks yourself afterwards.
Where the rules come from.
From an analysis of 6,220 startup domains, split by industry.
68 %
Name = DomainThis many of the 6,220 startups use exactly their name as the domain. Among the top companies of older batches it’s 91%.
8 characters
Median lengthHalf of all names are shorter. Only 9% have 13 characters or more, 1.8% a hyphen.
47 %
.com in the 2026 batchIn 2012 it was still 91%. The .ai extension now reaches 27%.
Frequently asked questions
How is it different from a normal domain generator?
Classic generators combine keywords with extensions. The result is lots of names with no connection to you. A prompt with a brief and rules delivers candidates that fit your project, audience and tone.
Does the tool check whether the domain is available?
No. An AI can’t reliably know availability. Check your favourites with the registrar of your choice and trademarks in the relevant register (e.g. DPMA, EUIPO or USPTO).
Does it cost anything, and what happens to my input?
The prompt builder is free and needs no sign-up. Your input stays in your browser; this page doesn’t store or transmit it. Only when you give the prompt to an AI tool does it end up there.
Where do the rules in the prompt come from?
From an analysis of 6,220 startups that went through Y Combinator between 2005 and 2026: extensions, name lengths, additions and hyphens, split by industry. For local businesses and personal brands there is no comparable data, so rules of thumb apply there.
What happens after the candidates?
The quick filter gives you a rough sort. For the decision you need more: 15 criteria for brand, SEO, technology and legal. They are in Naming.