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Browser utility
Create Content-Security-Policy HTTP headers using a visual interface. Configure directives for scripts, styles, images, fonts, frames, and more. Copy the complete header value for your server configuration.
Generate a Content-Security-Policy header with guardrails for common production mistakes.
Test in report-only mode first, then enforce after reviewing blocked resources.
default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self' https: data:; connect-src 'self' https:; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'
Content-Security-Policy-Report-Only: default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self' https: data:; connect-src 'self' https:; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'What it checks
Build Content-Security-Policy headers visually.
Catch formatting mistakes before they reach production code or configuration.
Create copy-ready values with sensible defaults and clear labels.
Prefer local browser processing when the task does not need a network request.
Methodology
Next steps
Interpretation
Use cases
Format, generate, encode, decode, or validate snippets without opening a heavy app.
Use client-side tools for sensitive text when server processing is unnecessary.
Generate clean output your team can paste into HTML, DNS, or server config.
Next paths
Use these pages when the result points to a broader check, a fix workflow, or a related technical question.
Fix workflows
Frequently asked questions
No. Enter a URL or domain and run the check in your browser. Some results can be partial if the target site blocks requests or hides the data being checked.
The CSP Header Generator runs live checks against the target website. Results reflect what was reachable at the time of the test, so retest after changing DNS, redirects, headers, or page content.
Create Content-Security-Policy HTTP headers using a visual interface. Configure directives for scripts, styles, images, fonts, frames, and more. Copy the complete header value for your server configuration.
Use this tool whenever you need to quickly verify build content-security-policy headers visually for any website. It's especially useful during site launches, migrations, and routine maintenance.