CSP Policy Validator
Audit existing Content Security Policy strings for unsafe-inline, wildcard (*), and bypass vulnerabilities.
How to Use CSP Policy Validator
Paste your Content-Security-Policy header value.
The validator checks for high-severity weaknesses.
Read actionable suggestions to harden policy directives.
CSP Policy Validator runs 100% client-side in your web browser. Your data, passwords, keys, and files are processed using the Web Crypto API and never transmitted to any server. Zero telemetry, zero storage, zero cloud processing.
Frequently Asked Questions
Why is 'unsafe-inline' dangerous in script-src?
'unsafe-inline' allows execution of inline <script> tags, neutralizing one of the primary defenses against XSS.
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