RSA Key Generator
Create 2048–4096-bit RSA keypairs locally with Web Crypto: RSA-OAEP, RSASSA-PKCS1-v1_5, or RSA-PSS (SHA-256). Copy or download PEM private (PKCS#8) and public (SPKI) keys — nothing leaves this device.
Frequently asked questions
No. Private keys are created only in-browser. Nothing is sent to LocalTools servers for processing.
Use encrypted storage, hardware tokens, or your platform’s secret manager—never commit them to git.