Strict CSP
scriptSrc = 'self'
Result: CSP header generated.
CSP Builder
Generate a Content Security Policy header step by step.
Privacy: this tool processes your data entirely in your browser. Nothing you paste or type is sent to the server.
Enter your values and press Calculate — the result appears here.
Worked examples
Frequently asked questions
What is CSP?
Content Security Policy controls which content sources are allowed.
📚 Learn More
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