Yes, CSP Builder is completely free to use with no signup required.

Does CSP Builder send my data to a server?

No. CSP Builder runs entirely in your browser using client-side JavaScript. Your data never leaves your device.

What is CSP Builder used for?

Select directives to assemble CSP headers. Prevent XSS and clickjacking via secure client-side rules configurations.

CSP Builder — Content-Security-Policy Header Creator | DevTab

Configure Content-Security-Policy (CSP) headers to prevent injection attacks. Checkboxes compile directive tokens into a copyable header policy string.

117 B1 linesDirectives: 4 rules active

Directives Checkbox Panel