Generate Content-Security-Policy (CSP) Headers
Build strict, production-ready CSP directives to safeguard web applications against cross-site scripting (XSS).
About This Tool
Content Security Policy (CSP) Generator provides an interactive interface for defining resource-loading policies, generating HTTP headers, HTML meta tags, and Nginx configurations.
Key Features
Covers all primary CSP directives (default-src, script-src, style-src, img-src, connect-src, frame-ancestors)
Outputs HTTP Header, HTML <meta> tag, and Nginx format
Upgrade-insecure-requests directive support
How to Use This Tool
- Configure default-src, script-src, style-src, img-src, and connect-src sources.
- Set frame-ancestors to 'none' to prevent clickjacking.
- Toggle 'Upgrade Insecure Requests' for automated HTTPS upgrading.
- Copy the generated HTTP header or Nginx directive.
Why Use This Tool
- CSP is the most effective defense against modern Cross-Site Scripting (XSS) and data injection vulnerabilities.
- Generates syntax ready for HTTP headers, HTML <meta> tags, and Nginx configs.
Pro Tips
- Avoid 'unsafe-inline' in script-src by migrating inline scripts to cryptographic nonces or hashes
Frequently Asked Questions
Can I test CSP without breaking my website?
Yes! Use the 'Content-Security-Policy-Report-Only' header name to test your policy in production while monitoring violations without blocking user assets.
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