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Content Security Policy Builder

Build a CSP header interactively — toggle directives, add source values, generate nonces. Copy the final header string straight into your server config or <meta> tag.

✓ All major CSP directives ✓ Source value quick-add buttons ✓ Nonce generator ✓ Live preview — runs in your browser

CSP Header

 
 
  
 
Nonce Generator
 
Generate a new cryptographic nonce per request. Use 'nonce-VALUE' as a source.
 
   
  
  
 
Quick Presets
 
    
 
 
 
  
 
Add Custom Directive
 
    
 
 
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