Built with Replit?
Security scanning for Replit apps
Replit lets you build and deploy from your browser, but deployed Repls often leak secrets in client code and miss critical HTTPS configurations.
Free scan. No account required.
Common issues
Top vulnerabilities in Replit apps
These are the three most common security issues we find when scanning Replit projects.
Secrets and API keys accidentally included in client-side JavaScript
Missing HSTS headers leaving your app vulnerable to downgrade attacks
CORS misconfiguration allowing unauthorized cross-origin requests
How it works
60-second security audit
01
Paste your URL
Enter your Replit app URL. We handle the rest.
02
Get your score
10 security modules run in parallel against your live site.
03
Fix with AI prompts
Copy the fix prompts into your AI tool and ship secure.
10 security modules, one scan
Every scan checks security headers, SSL/TLS, exposed files, JavaScript secrets, Supabase & Firebase configs, CORS, cookies, email security, and tech detection.
Scan your Replit app now
Find security issues before your users do. It takes 60 seconds and your first scan is free.