OpenSSL Generator

This online generator creates OpenSSL-compatible cryptographic material without requiring local software. It offers RSA and EC key options, with common sizes (2048, 3072, 4096 bits) or curves (prime256v1, secp384r1). It can produce private keys, public keys, and Certificate Signing Requests (CSRs). Formats include PEM and DER, with PKCS#8 support for private keys, ready for OpenSSL workflows.
Input validation enforces valid subject data (CN, O, OU, L, ST, C), SAN entries, and correct format syntax. A cryptographic backend assembles artifacts using standard libraries, ensuring generated items are compatible with OpenSSL commands. Outputs indicate format and security properties, with optional passphrase protection for encrypted private keys.
Audience and value: developers, system administrators, and security engineers gain rapid, reproducible results for testing, staging, or production provisioning, without installing OpenSSL locally. The online nature reduces setup time and preserves interoperability with existing PKI pipelines.
Core features include RSA and ECC key generation, 2048/4096-bit options, CSR subject customization, optional SANs, export options (PEM/DER), and private key encryption. Use cases cover provisioning server certificates, multi-domain CSR creation, automated test key generation, and script-based validation of OpenSSL workflows.