Private Key Converter
Convert SSL private keys between different formats (PEM, PKCS#1, PKCS#8, DER) and extract public keys
Privacy Protected
Offline Processing
Instant Results
Private Key Input
Example Keys
RSA Private Key (PKCS#1)
Try it-----BEGIN RSA PRIVATE KEY-----...
Private Key (PKCS#8)
Try it-----BEGIN PRIVATE KEY-----...
No Conversions Yet
Paste a private key and click “Convert Key Formats” to see all available format conversions.
Key Format Information
PKCS#1
RSA-specific private key format. Uses “RSA PRIVATE KEY” headers.
PKCS#8
Algorithm-agnostic private key format. Uses “PRIVATE KEY” headers.
OpenSSH
OpenSSH private key format. Uses “OPENSSH PRIVATE KEY” headers.
PEM
Generic term for Base64-encoded keys with headers/footers.
Security Notice
- • All conversions happen locally in your browser - keys never leave your device
- • Always keep your private keys secure and never share them
- • This tool provides format conversion only - it doesn't validate key security
- • Use strong, randomly generated keys for production environments
- • Different formats may have varying compatibility with different applications
About This Tool
Convert SSL private keys between different formats (PEM, PKCS#1, PKCS#8, DER) and extract public keys
Privacy & Security
- • All file processing happens locally in your browser
- • Your files never leave your device or get uploaded to any server
- • No data collection, tracking, or storage of your files
- • Works completely offline once the page is loaded
Keywords
privatekeyconvertpempkcs1pkcs8derrsa