DevScratchpad

SSH Keypair Generator & Randomart Visualizer (Offline & Secure)

Generate secure SSH key pairs (Ed25519, RSA 4096, ECDSA) in your browser using WebCrypto API. Download .pub and .pem keys with OpenSSH Randomart visualizer.

How to use

  1. Select your desired algorithm (Ed25519 is recommended for modern servers).
  2. Enter a custom comment or email identity (e.g. user@devscratchpad).
  3. Copy or download your public key (id_ed25519.pub) and private key (PKCS#8 PEM).
  4. View the iconic OpenSSH Drunken Bishop Randomart ASCII art visualizer.

Important Considerations

  • Zero server transmission ensures private keys never leave your machine memory.
  • OpenSSH wire format binary serialization done completely client-side.

Privacy Notice: This tool is strictly client-side. All processing runs in your local browser memory using JavaScript. No text, tokens, payloads, or logs are ever transmitted to any remote server or analytics engine. You can even use this tool completely offline.

Keyboard Shortcuts

  • Ctrl/Cmd + KOpen Command Palette