SSL CSR Generator
Certificate signing requests & private key.
Keep the private key safe — you'll need it to install the certificate your CA issues.
This free SSL CSR generator creates a certificate signing request and its matching private key for requesting an SSL/TLS certificate from a certificate authority. Fill in your domain and organization details, add any Subject Alternative Names, pick a key type, and generate. Ed25519 is the recommended default — fast, compact, and secure; RSA (2048–4096 bit) is offered for CAs or platforms that don't yet accept Ed25519. The CSR is what you submit to your CA; the private key stays with you (PKCS#8 PEM for Ed25519, PKCS#1 PEM for RSA).
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