Guide
Is my Bolt.new app secure?
A Bolt.new app is secure only if its backend rules and API keys were locked down after it was generated, and by default they often are not. The two issues that matter most are a database readable without a login and secret keys shipped to the browser, both visible from your public URL.
Speed is where the gaps hide
Bolt.new is built to get you from prompt to working app as fast as possible. Every step it skips to stay fast is a step where a security default might be left off. That is not a knock on the tool. It is the reason you check the output before you trust it with real users.
Every step it skips to stay fast is a step where a security default might be left off.
What Bolt apps commonly expose
- Open database tables. A Supabase or Firebase backend with no access rules lets anyone read your data from the browser console.
- Secret keys in the bundle. Service-role keys, live payment keys, and cloud credentials that were meant for the server sometimes end up in the shipped JavaScript.
- Source maps in production. These hand your original source code to anyone who opens dev tools.
- Missing headers. No frame protection, no content-type protection, permissive cross-origin rules.
Check it from the outside
You can find all of this without touching your codebase, because it is all in what the browser receives. Paste your Bolt.new URL into Plaintext, and it reads the same public data an attacker would and reports what is open, worst first.
Frequently asked
Are Bolt.new apps safe to launch?
A Bolt.new app is safe to launch once you have checked its database rules and confirmed no secret keys shipped to the browser. Straight out of the generator, those are the two things most likely to be wrong, so scan before you send real users to it.
Does Bolt.new secure my database automatically?
No. Bolt.new wires your app to a backend, but the access rules on that backend are yours to set. If row-level security is off, your tables are readable by anyone until you turn it on.
Check your own app in about a minute. Paste your URL and Plaintext reads the shipped JavaScript, the public endpoints, and the database rules for the exact holes Bolt.new and other AI builders leave open. The first scan is free.
Scan my app