Which AI tools are actually free, and where the catch is

Of the 68 tools on this list, 40 are usable without paying, and 20 of those earn me nothing at all. But "free" covers three different arrangements: free with no ceiling, free until you hit a limit, and free until you start making money. The third is where people get caught, because it arrives exactly when things are going well.

Here is which is which, and where each one actually stops.

Which tools are free with no ceiling that matters?

These have no meaningful limit for a one-person business. Not a trial, not a countdown.

Four of those six I use every day, and none of the six pays me anything.

The two marked "if you host it yourself" deserve a word, because that phrase is doing work. Self-hosting is free in money and not free in time. If you already run a server, it is genuinely free. If you do not, the hosted version at around €20 a month is cheaper than the evening you will spend, and you should be honest with yourself about which one you are.

Which free tiers have a ceiling you will actually hit?

These are free until a number, and the number is reachable. That is fine — it is how a fair free tier should work — but you should know where the wall is before you build on it.

The useful thing about this group is that the ceiling is a growth signal. The month you outgrow Kit's free tier is the month you have a thousand people who asked to hear from you. Paying then is not a cost, it is a receipt.

Which tools are free until you start making money?

This is the category worth reading twice, because the condition is not a usage number. It is a change in what you are doing.

**Vercel** is the clearest case. The free plan is not licensed for commercial use. Building a site on it costs nothing; running a business on it is meant to be on a paid plan. That is a perfectly reasonable arrangement, and it is also the kind of thing people discover six months in. Plan for it from the start and it is a normal business cost. Discover it, and it feels like a trap that you set yourself.

The general shape: a free tier aimed at learners and hobbyists, with a licence condition rather than a meter. Read the terms once, at the beginning, for anything you intend to build a business on. It takes ten minutes and it is the cheapest insurance in this article.

Is a free tier actually enough to decide with?

For infrastructure, yes. Hosting, databases, version control and email sending all behave the same at zero as they do at scale.

For AI tools that meter generations, often not — and that is frequently the design. The free allowance is set just below the amount you would need to answer your own question. You generate four images, none of them is quite right, you are out of credits, and now the decision is "pay to find out" rather than "I know".

There is a way around it that costs nothing but discipline: decide what a yes looks like before you spend the free allowance. Not "let me have a play". Something specific — this exact job, at this quality, in under this many attempts. Then spend the whole free tier on that one job. You will get an answer instead of an impression.

This matters more than it sounds, because the alternative is what most people do: sample six tools, form a vague preference for the one with the nicest interface, and subscribe to it.

Which paid tools earn their money anyway?

Being free is not the same as being the right choice. Three paid lines are worth it for most people:

• A coding agent, around €17–20 a month. This is the one thing on the list that replaces hours rather than steps.
• A domain, €10–15 a year. Not optional if you want to be taken seriously, and cheap enough that it barely registers.
• One general model subscription, around €20. One. Not two — see what these tools actually cost per month for why the second one is the most common waste in this category.

That is roughly €40 a month for a setup that does real work. Everything else on this list can wait until something specific is stopping you.

How do I know you are not just recommending what pays you?

Fair question, and the arithmetic is checkable.

Of the 40 tools here that you can use without paying, 20 pay me nothing — exactly half. That includes the ones I recommend most often and use every day: GitHub, Cloudflare, Vercel, Supabase, Stripe, Resend, OBS Studio. The list is arranged by what a job needs, not by what carries a commission, and where a tool pays me the page says so.

The other 20 free-tier tools do have affiliate links. If you sign up through one, I may earn something at no extra cost to you. It does not change what is written about them, and the test of that claim is this article: the entire top table earns me zero.

If you would rather verify than take my word for it, the about page sets out how this site earns, and every tool page states plainly when a link is an affiliate link.