Network Console
SSL certificate inspection, local port scanning, CORS header generation, and CSP policy building — unified in one interface. Every operation runs locally in your browser.
What does this tool do? Four network security tools in one place. SSL Decoder inspects TLS certificates. Port Scanner checks localhost for open services. CORS Generator builds cross-origin headers for your API. CSP Builder creates Content Security Policies to prevent XSS. All data stays on your device.
Zero-Trace Guarantee: SSL lookups use crt.sh transparency logs only for public certificate data. Port scans are localhost-only. CORS and CSP headers are generated entirely client-side. No telemetry, no logging.
View Technical Specifications (For Developers)
- SSL: Queries
crt.shCertificate Transparency logs to fetch current certificate data - Port Scanner: Uses
fetch()connection timing to detect open ports onlocalhostonly - CORS: Generates
Access-Control-Allow-Origin,Allow-Methods,Allow-Headers,Max-Ageheaders - CSP: Builds
Content-Security-Policyheaders for all major directives
Uses the public crt.sh transparency log. No requests to your server.
Scans common ports on localhost (127.0.0.1) only. No external network requests are made.
Configure your Content-Security-Policy directives. Leave blank to omit a directive.