CSP Header Generator
Build CSP headers visually
🔒 Files never leave your browser
Toggle directives and add sources to build your Content-Security-Policy header.
How to Use CSP Header Generator
Set directives
Configure each CSP directive.
Preview
See the full CSP header.
Copy
Copy the header string.
Why Choose AllTools CSP Header Generator?
- ✓ All directives
- ✓ Visual builder
- ✓ Source options
- ✓ Nonce support
- ✓ Meta tag output
- ✓ No data stored
Why Use This Tool
- ★ All processing happens locally — passwords and keys never leave your device
- ★ No data stored or transmitted to any server
- ★ Completely free with no usage limits
- ★ No account or registration required
- ★ Uses industry-standard cryptographic algorithms
Related Resources
Frequently Asked Questions
What is CSP? ▼
Content Security Policy is an HTTP header that helps prevent XSS attacks by controlling which resources can be loaded.
Is my data private? ▼
Yes. The CSP header is built entirely in your browser. No data is sent to any server.
Which directives should I start with? ▼
Start with default-src set to self, then add specific directives like script-src and style-src as needed for your application.
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