CSP Header Generator – Build Your Content-Security-Policy Safely
The Content-Security-Policy (CSP) HTTP header is one of the most powerful tools to prevent Cross-Site Scripting (XSS), data injection, and other client-side attacks. CSP allows website owners to define which resources the browser can load and from where. But creating a safe and functional CSP can be tricky — misconfigurations may break site features or leave loopholes.
This generator provides a structured interface to build your own CSP header line-by-line. Select allowed sources for scripts, styles, images, and more — including fallback policies. As you make selections, the final CSP header is built in real time. Use it to harden web apps, set headers in your web server (Apache/Nginx), or copy-paste into meta tags.
🛡️ CSP Header Generator
Build a Strong Content-Security-Policy
Customize allowed sources for scripts, styles, images, frames, and more. Copy the generated HTTP CSP header for your site.
Choose Allowed Sources
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