SSL/TLS CSR Decoder
Decode and inspect CSR or SSL certificate details. Check expiry, issuer, and subject info easily.
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About SSL/TLS CSR Decoder
The SSL/TLS CSR Decoder on T00LZ is a specialized utility for developers and system administrators who need to inspect Certificate Signing Requests before they are submitted to a Certificate Authority. A CSR is an encoded block of text that contains your public key and organizational details, and it's crucial to ensure that this information is 100% accurate to avoid costly errors during the SSL issuance process. Our tool allows you to instantly decode and verify the Common Name, Organization, and location details directly in your browser, ensuring that your web security setup is professional and error-free.
How to Use SSL/TLS CSR Decoder
Paste CSR
Copy and paste your PEM-formatted CSR (including BEGIN/END lines) into the box.
Decode
Click the decode button to extract the embedded identity and key information.
Verify Details
Carefully review the Common Name and Organization details for accuracy.