Free Tools · Development
Free App Security Scanner
What you get
A plain-English security check for apps built with Lovable, Bolt, v0, Cursor, or Replit.
Paste your URL to open the KarmaKoders scanner. Find missing headers, exposed files, weak TLS, open CORS, and more — with redacted evidence and optional AI fix prompts.
Paste your app URL for a plain-English security check: headers, exposed files, TLS, CORS, and (when authorized) deeper discovery. Open the full scanner to connect GitHub, verify ownership, schedule re-scans, and verify fixes.
A scan is not a guarantee of security.
Connect GitHub for authorized repository scans, verify domain ownership for deeper checks, schedule re-scans, and click Verify Fix after you remediate.
Frequently Asked Questions
Is this a penetration test?
No. It is an automated security posture check with evidence. It is not a guarantee of security and does not replace a professional audit.
Do I need an account?
Passive URL checks can start without signup. Ownership verification and private GitHub repos require authorization.
Where does scanning run?
The public page is the entry point. The scanner application and Python worker run separately and keep your scan jobs queued safely.