Tool Categories

Certificate Key Matcher

Verify that a certificate and private key match and form a valid pair

Certificate Key Matcher

Certificate & Key
Paste certificate/CSR and private key

Key matching happens entirely in your browser. No data is sent to any server.

Match Result
Certificate and key compatibility

Enter certificate and private key to verify match

How to Use
  1. Paste certificate/CSR :- Enter your PEM certificate or CSR
  2. Paste private key :- Enter the corresponding private key
  3. Click Check Match :- The tool will verify if they form a valid pair

Note: The tool compares the modulus of both keys to determine if they match. All processing happens in your browser.