CSR Decoder
Parse and validate Certificate Signing Requests
Privacy First: All CSR processing happens locally in your browser. Your data never leaves your device.
About CSR
A Certificate Signing Request (CSR) is a block of encoded text that contains information about the entity requesting a certificate and the public key that will be included in the certificate.
Common fields:
- CN (Common Name): The fully qualified domain name (FQDN)
- O (Organization): Legal company name
- OU (Organizational Unit): Department name
- L (Locality): City
- ST (State): State or province
- C (Country): Two-letter country code