Certificate Parser

Parse and analyze SSL certificates to view detailed information including validity, issuer, subject, and extensions

Privacy Protected
Offline Processing
Instant Results
Certificate Input
Try Example

Sample X.509 Certificate

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Example self-signed certificate for testing

-----BEGIN CERTIFICATE-----

No Certificate Parsed

Paste an X.509 certificate and click “Parse Certificate” to view its details.

About Certificate Parsing

This tool parses X.509 certificates in PEM format and displays their contents in a human-readable format.

You can paste certificates from files, websites, or generated by other tools to analyze their properties, validity, and security settings.

Privacy: All parsing happens locally in your browser. Certificate data never leaves your device.

About This Tool

Parse and analyze SSL certificates to view detailed information including validity, issuer, subject, and extensions

Privacy & Security

  • • All file processing happens locally in your browser
  • • Your files never leave your device or get uploaded to any server
  • • No data collection, tracking, or storage of your files
  • • Works completely offline once the page is loaded

Keywords

certificateparsesslx509analyzeviewdecode