Generate RSA public and private key pairs in PEM format. Choose 1024, 2048, or 4096-bit key sizes for encryption and signing.
The RSA Key Pair Generator by TooliFyra creates RSA public and private key pairs for encryption, decryption, and digital signatures. RSA is one of the most widely used public-key cryptosystems, securing web traffic (HTTPS), email (PGP), and software signing.
This tool generates keys entirely in your browser using the Web Crypto API. The keys are exported in PEM format, compatible with OpenSSL, SSH, and most cryptographic libraries.
RSA key pairs enable secure communication without pre-shared secrets. The public key encrypts data, and only the corresponding private key can decrypt it. The RSA Key Pair Generator makes it easy to create these keys for development, testing, and learning.
Developers: Generate test RSA keys for application development.
Security Engineers: Create keys for testing encryption implementations.
Students: Learn about public-key cryptography by generating and using RSA keys.
System Admins: Generate SSH keys or TLS certificates for testing.
TooliFyra uses the Web Crypto API for RSA key generation, providing the same security as native cryptographic libraries. Keys are generated with proper randomness and exported in standard PEM format for maximum compatibility.
2048-bit is the current standard for most applications. 4096-bit provides higher security but slower operations. 1024-bit is deprecated for security.
Yes. The generated PEM keys are fully compatible with OpenSSL, SSH, and most cryptographic libraries and tools.
RSA-2048 and above remain secure for the foreseeable future. For new applications, also consider Ed25519 keys which are faster and more compact.