Generators & QR
SSH Key Generator - Generate SSH key pairs in the browser
Generate SSH key pairs in the browser
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
Frequently asked questions
Is it safe to generate keys in browser?
Yes, keys are generated locally using Web Crypto API. Nothing is sent to servers.
Which key type should I use?
Ed25519 is recommended - small, fast, and secure. RSA-4096 for compatibility.
Should I use a passphrase?
Yes, especially for keys stored on shared or portable devices. Adds encryption layer.
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About this tool
This SSH Key Generator turns your inputs into practical results. Provide Key Type, Key Comment, and Passphrase (optional) to calculate Private Key and Generate New Keys.
Adjust values to compare scenarios and see how sensitive the result is. The calculation uses the numbers as entered, so double-check units and expect small differences from rounding in the displayed totals.