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CSP Header Builder

v1.0.0

Build Content Security Policy headers interactively with directive explanations and copy-ready output.

Visual Content Security Policy builder that constructs CSP header values from checkbox selectors, with a threat explanation for each directive.

How to use
  • →Enable only the source directives your application actually uses.
  • →Hover over directive names to see a plain-English explanation of what each controls.
  • →Copy the completed header value and add it to your web server configuration.
  • →Try a preset from the example picker to see sample input.