// next.js security scanner
Check your Next.js app for the security mistakes that are easy to ship and hard to spot.
Scan your site for freeFree scan. See the count and severity before you pay.
Next.js makes it easy to blur the line between server and client code. A value in the wrong place, a NEXT_PUBLIC variable that should have been private, or shipped source maps can quietly expose secrets. VibeSec checks for the issues specific to Next.js apps and explains each one in plain language.
The quickest way to know is to scan it. VibeSec reads the JavaScript your app serves and looks for keys and tokens that should never reach the browser, then tells you which file they came from and how to fix it.
A full scan also checks your TLS setup, security headers, email records, and runs active tests for injection bugs once you confirm you own the site. Everything is normalized into one plain-language report.
Paste your site address. The free scan is passive and read-only, so it is safe to run.
VibeSec reads the code your app serves to the browser and checks it for leaked secrets, weak headers, outdated libraries and more.
See what was found, why it matters, and copy-paste steps to fix it. No security background needed.
Any environment variable prefixed with NEXT_PUBLIC_ is bundled into the browser by design. If you put a secret there, it becomes public. VibeSec flags secrets that ended up in your client bundle.
Yes. The scan reads the code your site actually serves, so it works regardless of which router or rendering mode you use.
It fingerprints your framework and libraries and flags versions with known CVEs. Use this as a starting point and update the flagged packages.
// related scanners
The free scan shows the count and severity. Upgrade to see every finding with copy-paste remediation.
Scan your site for free