Cert Decoder SSL Shopper Alternative — Inspect X.509 Certificates
About Cert Decoder SSL Shopper Alternative — Inspect X.509 Certificates
With a wizard's whisper, Parse PEM/DER X.509 certificates and display key details including Subject, Issuer, validity period, serial number, and Subject Alternative Names.
How to use Cert Decoder SSL Shopper Alternative — Inspect X.509 Certificates
- Paste your certificate in PEM or DER format.
- Click Decode to view fields.
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Cert Decoder Ssl Shopper
cert decoder ssl shopper style tools focus on taking a PEM or DER X.509 certificate and turning it into fields that are easy to read and verify during TLS troubleshooting. An X.509 certificate always carries core elements such as version, a unique serial number, the issuer distinguished name, the subject distinguished name, the subject public key, and a validity period defined by “not before” and “not after” timestamps. Modern SSL/TLS certificates also embed extensions like Subject Alternative Name (SAN), which lists additional DNS names or IPs that the certificate covers beyond the common name. When a decoder lays these details out clearly, it becomes straightforward to answer practical questions such as “Which hostname is actually covered?” or “Has the certificate already expired?” Seeing the issuer and serial number together helps identify which CA issued the certificate and distinguish it from other certificates in the same chain. For routine checks, pasting the certificate and reading these parsed values is faster and less error-prone than wrestling with command-line tools, especially for teammates who do not work with OpenSSL every day. Using a browser-based decoder is also convenient during incident calls, because it works the same way on different operating systems as long as the raw certificate text is available. Overall, a focused decoder page becomes a quick inspection panel for the most important trust and lifecycle properties of any server or client certificate.
Privacy-first processing
WizardOfAZ tools do not need registrations, no accounts or sign-up required. Totally Free.
- Local only: There are many tools that are only processed on your browser, so nothing is sent to our servers.
- Secure Process: Some Tools still need to be processed in the servers so the Old Wizard processes your files securely on our servers, they are automatically deleted after 1 Hour.