Security for your Replit app
Replit gives you editor, database and hosting in one place, and with the Agent you can ship without touching the terminal. The risk: secrets that end up in the code, public Repls that expose your files, and open services without headers. Scan it before you share the link.
Typical risks in Replit
Secrets in the code instead of in Secrets
Replit has a Secrets manager, but it is easy to end up with the key written in the code or a config file. If the Repl is public or gets deployed, that key leaks.
Public Repls that expose your files
A public Repl lets anyone see all the project code and files, including forgotten .env files or backups. Check what is visible before assuming it is private.
Open services without headers
A Replit deployment exposes your app on a public URL with no security headers. If you also leave endpoints or ports unprotected, they are within anyone's reach.
Related checks
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