Is Base44 safe? What 5,442 live Base44 apps showed

You built something on Base44, it works, and you are about to put real people on it. So you typed "is base44 safe" into a search box, and what came back was Base44's own blog, Base44's own feature pages, and two guides written from them. None of that is an answer, and your own scan report, if you ran one, probably said B and left you none the wiser about why.

We can answer part of it. Over the past year we have run the same nine checks against every live app we could find, and 5,442 of them were Base44 apps. Here is the part that guide after guide gets wrong: a Base44 app and a Lovable app fail in opposite places, and the report Base44 gives you is mostly not about you.

Is Base44 safe?

Three different questions are hiding in those four words, and separating them is most of the work.

The first is whether Base44 the company is safe to trust with your app. The second is whether the code it writes for you is any good. The third is whether the app you published is safe for strangers to visit. Only the third can be measured from outside, and on Base44 even that one comes back half answered.

What we found in 5,442 Base44 apps

Four findings, in almost every app, and all four belong to the platform.

The first two are response headers, and a response header on a Base44 app is set by Base44's hosting rather than by anything you wrote. The third and fourth look alarming on a report and are not yours either: the only source map that answers on a Base44 app belongs to Base44's own badge script, and the address that answers is the same one every time. We went back to 30 of the flagged apps in September 2026 and wrote up what those two lines actually mean, because they are the two most misread lines on a Base44 report.

That leaves 103 apps out of 5,442 carrying something in the page that a person pasted there: 95 of them a Google API key, 11 some other secret-shaped string, and one a live Stripe secret key. Those are the lines on a Base44 report that somebody put there, and the only ones somebody can take away.

Why nearly every Base44 app scores B

Because the grade is capped by the worst thing found, and almost every Base44 app has the same medium finding.

Read the shape rather than the ranking. Base44's report is one tall bar at B with almost nothing under it: six apps out of 5,442 scored below B, and not one scored F. Lovable is the other shape entirely, 86% at A with about one in eight at C or worse. The same nine checks produced a flat distribution on one platform and a split one on the other, and neither picture is a verdict on any individual app, including yours.

So a B on a Base44 app is close to the floor for the platform, and the useful reading of your report is not the letter. It is whether the key line and the secret line are empty.

The 95 keys that were actually yours

A key in your published page is the one finding on a Base44 report that nobody else put there.

95 of the 5,442 apps shipped a Google API key and 11 shipped something else that looked like a secret. One shipped a live Stripe secret key, and one a restricted Stripe key. A Google API key in a page is usually fine and sometimes a bill, depending entirely on whether it was restricted when it was created, which is a five-minute thing to check and fix. A Stripe secret key in a page is not in that category at all: it reads customers, moves money and issues refunds, and it needs rotating before you finish reading this.

If you are unsure which of your keys are supposed to be public, that question has a short answer and we wrote it down: which keys belong in a browser and which never do.

Our free scan reads your live Base44 app from outside and tells you which keys and addresses it can see. It takes about 20 seconds and needs no account: scan your app.

The one thing nobody can check from outside

Whether a stranger can read your data. Not us, not any other scanner, and the reason is Base44's own design.

On most builders your app talks to its database directly from the visitor's browser. That means the database has a public address, your app carries it, and anybody can lift it out and ask the database questions. Whether they get answers depends on a per-table setting the owner may never have seen. It is the single biggest cause of leaked data in apps built this way, and on Base44 it is not available to you, because requests go through Base44 instead.

The measurement says so plainly. 1,466 of the 5,442 Base44 apps name a Supabase project somewhere in their page. Our row-level-security check could get a usable answer from 2 of them.

Compare that with the builders where the door is on the street. On Lovable, 6,535 apps name a Supabase project, 3,553 gave the check a usable answer, and 2,017 of those handed rows to a request with no login. On Bolt, 35 of 267 answered. On v0, none of 17 did.

Two apps is not a rate, and we are not going to print one. The honest summary is that your Base44 data is behind a door we cannot reach, which is better than a door standing open, and is not the same as knowing it is locked. What decides it is on the inside: who can sign up, what a signed-up account can see, and whether any screen was built on the assumption that nobody would look.

Which means the inside check is the one that matters here

Base44 runs one, and on a Base44 app it sees the half we cannot.

Base44's security page says you can run a security scan from every app's Security tab, and that it checks third-party dependencies, insecure code patterns, exposed secrets, missing login checks and weak data access rules. Those last two are the exact questions an outside scan cannot reach on a Base44 app. Read on 6 October 2026.

The reverse is also true, which is why the 95 is in this article. An inside scanner reads your project; it has no particular reason to fetch your published page and read what went out in it. So the two answer different halves, and a Base44 owner who runs only one of them is blind in a specific way:

• Base44's Security tab reads the project: your dependencies, your code, your login checks, your data access rules.
• An outside scan reads what your visitors receive: the keys in the page, the addresses it calls, the headers that come back, whether a map went out with it.

Run the inside one before you publish and an outside one afterwards. Base44's documentation describes that scan in more detail than their security page does, and we went through it: what it checks, and why it can come back clean while your published page still carries a key.

If you attached your own Supabase project

Then the street door is back, and the per-table setting is yours again.

Base44 lets you connect your own Supabase project instead of using the database it provides. That changes the most important thing in this article: your project answers the internet directly, your page carries its address, and Row Level Security is now the only thing between a stranger and a table. It is off by default for any table created by running SQL.

This is the one path by which the classic open-database problem reaches a Base44 app, and it is checkable in both directions: our scan can ask your Supabase project the same question it asks on any other builder, and the five-minute version of the check is a page in your own dashboard. If you have tables holding anything about people, turning it on for every table is the first thing to do today.

A Supabase project you own is also a database you are responsible for keeping a copy of. Care keeps a copy of your Supabase database on a schedule and gives you a one-click restore, and connecting a Storage credential brings your uploaded files along too. It covers Supabase, so it is for this branch of the article and not for a Base44 app on Base44's own database: how backups work.

The five-minute check on your own Base44 app

Four things, in the order they are worth doing.

Open your published app and look at what went out with it. Press F12, open the Network tab, reload, and read the requests. You are looking for a key in a URL or a response, and for an address you do not recognise. Our scan does this from outside and lists what it found, which is faster than reading it yourself: scan your app.

If you find a key, identify it before you panic. A Google API key wants restricting rather than rotating. Anything beginning sk_ wants rotating now.

Open Base44's Security tab and run the scan there too. It is the only one of the two that can see your login checks and your data access rules.

Then sign up to your own app as a stranger would. Make a second account, give it nothing, and see what it can reach. That is the question the outside scan cannot ask, and it costs one signup to answer.

Your app changes every time you publish

A scan is a reading of one moment, and the moment ends the next time you press publish.

That is not a Base44 problem, it is how any of these builders work: a prompt that adds a feature can add a key, a new page, or an address that answers. The 95 apps we found a key in were not built by people who wanted a key in the page. They were built one prompt at a time.

• Monitor re-runs the nine checks on a schedule and tells you when an answer changes.
• Care adds a copy of your Supabase database, kept on a schedule, with a one-click restore.

Both read the same nine checks this article is built on: see what each one covers.

What to do this week

If you would rather work through this as a list, the 10-minute security checklist covers this and the other things worth switching off in a newly launched app. The plain-language walkthrough for this platform is is your Base44 app safe, and the cross-builder comparison is in its own article.