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Certificate Parser

Parse and view details of X.509 certificates in PEM format

Paste your X.509 certificate in PEM format. The certificate must include the BEGIN/END markers.

Example format:

-----BEGIN CERTIFICATE-----
MIIDhTCCAm2gAwIBAgIJAL0gO0lXU3TvMA0GCSqGSIb3DQEBCwUAMFkxCzAJ...
[Base64-encoded certificate data]
...
-----END CERTIFICATE-----
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About Our SSL Certificate Parser

An SSL (Secure Sockets Layer) certificate is a digital certificate that authenticates the identity of a website and enables an encrypted connection. Our free online SSL Certificate Parser tool allows you to easily inspect the details of any SSL/TLS certificate installed on a website.

With our parser, you can quickly retrieve crucial information such as the certificate's issuer, subject, validity period, serial number, algorithm, and more. This tool is invaluable for website owners, developers, and anyone who needs to verify the security and authenticity of a website's certificate.

It's completely free to use and requires no installation. Simply enter the website's URL or paste the certificate content to get instant results.

Key Features

  • Easy to Use: Simple and intuitive interface for quick certificate analysis.
  • Fast and Reliable: Get detailed certificate information in seconds.
  • Comprehensive Details: View issuer, subject, validity, serial number, algorithms, and more.
  • Supports Multiple Input Methods: Analyze certificates by URL or by pasting the certificate content.
  • Completely Online: No software to download or install. Access it from any device.
  • Free of Charge: Our SSL certificate parser is completely free to use.

About Certificate Parsing

Certificate parsing is the process of extracting information from a digital certificate, typically an X.509 certificate used for SSL/TLS. Certificates contain important data about the website or service they secure, including:

  • Issuer information (who issued the certificate)
  • Subject information (who the certificate is for)
  • Validity period (start and end dates)
  • Public key
  • Signature algorithm
  • Extensions (additional information)

Our tool makes it simple to view this data without needing specialized software or command-line tools.

Key Features

  • Easy to Use: Paste your certificate and get results instantly.
  • Fast and Reliable: Our parser processes your certificate quickly.
  • Comprehensive Data: We extract all relevant certificate details.
  • PEM Format Support: Works with standard PEM-encoded certificates.
  • Completely Online: No software installation required.
  • Free of Charge: Our Certificate Parser is completely free.

How to Use

  1. Copy Your Certificate: Copy the entire certificate text, including the `-----BEGIN CERTIFICATE-----` and `-----END CERTIFICATE-----` lines.
  2. Paste into Input: Paste the certificate text into the input field on our website.
  3. Parse Certificate: Click the "Parse Certificate" button.
  4. View Results: The extracted certificate data will be displayed.

Why Use a Certificate Parser?

  • Verify Certificate Details: Check if a certificate is valid and issued by a trusted authority.
  • Troubleshoot SSL/TLS Issues: Identify problems with certificate configuration.
  • Inspect Certificate Chains: Examine the chain of trust for a certificate.
  • Extract Public Keys: Obtain the public key for cryptographic operations.
  • Automate Certificate Management: Integrate with scripts or tools to automate certificate tasks.