Certificate Tool

TLS Generator

Create a self-signed certificate and private key for local testing.

Common Name Organization Organizational Unit Locality State / Province Country DNS Names Valid Days Key Size

Run the generator to view the PEM output and metadata.

Resolver Tool

DNS Lookup

Query common DNS record types for a hostname.

Lookups will show A/AAAA, CNAME, MX, NS, and TXT records here.

Inspection Tool

Connect to a TLS endpoint and display the negotiated certificate.

Certificate details and PEM output will appear after a check.

Parser Tool

Paste a PEM-encoded certificate, CSR, private key, or public key to inspect it.

Parsed PEM blocks and metadata will appear here.