Certificate Chain Viewer
Parse a PEM certificate chain and inspect each certificate, its issuer, subject, validity and chain order.
What is Certificate Chain Viewer?
Inspect a collection of PEM-encoded X.509 certificates that form a certificate chain. The viewer parses each certificate separately and displays its subject, issuer, validity period, certificate type and position in the supplied chain.
How to use
- Paste the PEM-encoded certificates.
- Parse the certificates in the supplied chain.
- Review each certificate's subject and issuer.
- Check the validity periods and certificate order.
- Inspect the relationships between certificates.
Features
- PEM certificate chain parsing
- Multiple certificate detection
- Certificate ordering
- Subject and issuer information
- Validity period inspection
- Serial number display
- Public key information
- Certificate extension details
Common Use Cases
- Debugging HTTPS certificate chains
- Inspecting TLS configurations
- Checking intermediate certificates
- Troubleshooting certificate deployment
- Certificate infrastructure development
Example
-----BEGIN CERTIFICATE----- MIIB...leaf certificate... -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- MIIC...intermediate certificate... -----END CERTIFICATE-----
Certificates found: 2 Certificate 1 Subject: CN=example.com Issuer: CN=Example Intermediate CA Role: Leaf certificate Certificate 2 Subject: CN=Example Intermediate CA Issuer: CN=Example Root CA Role: Intermediate certificate
FAQ
What is a certificate chain?
A certificate chain is a sequence of X.509 certificates where each certificate is issued by the authority identified by the next certificate in the chain.
Can I inspect multiple certificates at once?
Yes. You can paste multiple PEM-encoded certificates and the viewer will parse them individually.
Can the tool identify the leaf and intermediate certificates?
It can analyze the subjects and issuers to help determine the relationships and likely positions of certificates in the supplied chain.
Does the viewer verify that a certificate chain is trusted?
No. Inspecting the certificates and their relationships does not establish trust against a browser, operating system or certificate authority trust store.
Can it show certificate expiration dates?
Yes. The validity period of each parsed certificate can be displayed, including its start and expiration dates.
Is the certificate chain uploaded to a server?
No. The certificates can be parsed locally in the browser without sending the PEM data to a server.
Missing a feature?
If this tool doesn't cover your use case or is missing functionality, please let me know through the Contact page.
New improvements and features are added based on user feedback.