Cookie Checker & Analyser

Analyse cookie attributes (Secure, HttpOnly, SameSite) and identify security issues and GDPR compliance problems. Checks for missing security flags, misconfigurations, and GDPR concerns.

Limits: 1000ms CPU, 64MB memory, 256KB outputImportant: This tool analyses cookie strings locally in your browser. No data is sent to servers. Use it to check your own websites' cookies for security issues.
Execution Mode:

Estimated credits this run: 0

Local mode runs entirely in your browser. No credits required.

Enter one or more cookies (one per line). Supports Set-Cookie header format or plain cookie strings. Example: sessionid=abc123; Secure; HttpOnly; SameSite=Lax; Path=/

What this tool checks:

  • Secure flag (HTTPS-only transmission)
  • HttpOnly flag (JavaScript access prevention)
  • SameSite attribute (CSRF protection)
  • GDPR compliance considerations
  • Security configuration issues

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