Seven generators that are free to actually use, sorted by where the wall sits. Plus what we found about the 878 companies taking real money without owning a domain at all.
Generating names is free everywhere worth using, including our generator, which needs no account. What is not free is the domain itself, normally $10 to $15 a year for a .com. You can skip even that: 878 companies in our dataset, 3% of everyone with a website, are taking live Stripe payments on a free platform subdomain. It works, and it has a specific cost we cover below.
The column that matters is the third one. Every tool here is free to generate names with, and none needs a credit card, but they monetise in different places and some of those places arrive sooner than you expect.
| Tool | Free tier | What you pay for | Best at |
|---|---|---|---|
| BigIdeasDB | Free, no account | None | Takes a plain business description rather than isolated keywords, and sits next to the demand data, so you name something you have already validated. |
| Namelix | Free, no account | Brand kits $25 to $175 | Brandable invented words with an instant logo mockup. Learns from what you save during a session. The logo purchase is optional and never gates the names. |
| Instant Domain Search | Free, no account | Registrar referrals | Live availability across 800+ extensions with registrar prices on each result. Nothing you see is unavailable by the time you click. |
| Domainr | Free, no account | Paid API | Domain hacks that slice a word across the extension. Needs a keyword to work with; useless without one. |
| NameMesh | Free, ad-supported | Ads | Results in labelled tabs (short, fun, SEO, similar) so you can compare naming directions in one search instead of seven. |
| Shopify | Free, no signup | Shopify plans | Clean prompt-to-names flow. Output skews commercial, which suits a store and does not suit a developer tool. |
| Wix | Free to generate | Wix plan for anything after | 21 industry categories and social handle checks. Everything past the name funnels into a Wix plan. |
Three patterns cover almost every "free" naming tool:
While aggregating 30,322 companies from the Stripe Index, we found 878 taking live payments on a platform subdomain rather than a domain they own. That is 3% of every company with a website, and 436 of them sit on AI app builders specifically.
The honest read is that a free subdomain is fine for testing and a liability once it works. Every link, citation and bookmark points at an address you do not control, so moving means losing them. There is also a discoverability problem that has become sharper recently: an agency founder describing their AI-search work in r/SaaS noted that when a brand lives on a platform subdomain, ChatGPT tends to guess the .com, land on a parked page, and move on. We looked at what happens to these companies in more depth in our study of 436 vibe-coded apps.
Worth knowing before a generator shows you a name at a premium price and it feels like the only option.
| Extension | Share of companies | Typical annual cost |
|---|---|---|
| .com | 54.6% | $10 to $15 |
| .org / .net | 5.4% | $10 to $20 |
| .io | 1.9% | $35 to $60 |
| .ai | 2.5% | $60 to $100 |
| Platform subdomain | 3% | Free |
Only 54.6% of payment-verified companies run a .com, so settling for an alternative extension puts you with roughly half the market rather than in a compromise position.
Company figures come from the BigIdeasDB Stripe Index (public Stripe directory), aggregated on 2026-07-26 across 30,322 companies, of which 29,091 have a website and 28,213 own their domain. Platform subdomains are counted separately from owned domains and excluded from all naming statistics. Pricing ranges are typical registrar list prices at publication and are not from the dataset. Figures are read-only aggregates with no company-level rows.
For naming a product whose demand you have already checked, the BigIdeasDB domain name generator is free with no account and takes a plain business description rather than isolated keywords. For brandable invented words with a logo preview, Namelix is free to generate. For live availability across 800+ extensions with registrar prices attached, Instant Domain Search. Most people need exactly two: one that generates and one that confirms the name is actually free to register.
The generation step almost always is. What varies is where the wall sits. Some tools show names without an account and monetise through registrar referrals, which costs you nothing. Others gate results behind a signup, or generate free and then require a paid plan for anything downstream such as a logo or a site. None of the tools in the table below require a credit card to see names, but read the third column before you invest time in one.
You can get a free subdomain, which is a genuinely different thing. Platforms such as Vercel, Netlify, Lovable and Replit give you yourname.vercel.app at no cost. In our data 878 companies were taking live Stripe payments on exactly this kind of platform subdomain, which is 3% of all companies with a website. It works. It also caps you: you cannot move the address later without losing every link pointing at it, and it reads as provisional to anyone evaluating you.
No, and buying early is a common way to waste money. A domain is roughly $10 to $15 a year for a .com, which is cheap enough that founders register several before they have decided what they are building, then renew them for years. Generate names freely, validate the idea, and register once you are committed. The exception is when you have found a name you are certain about, in which case register the same day, because shortlists leak.
A hand-registered .com is normally $10 to $15 a year. Alternative extensions vary widely: .io and .ai are meaningfully more expensive to renew, often $30 to $70 a year and sometimes higher. Aftermarket or premium names run from hundreds to five figures. If a generator surfaces a name at a premium price, note that only 54.6% of payment-verified companies are on a .com at all, so an unpremium alternative extension is a very normal outcome rather than a defeat.
BigIdeasDB Research. (2026). Free Domain Name Generator. BigIdeasDB. Retrieved from https://bigideasdb.com/free-domain-name-generator