Secure Public Key Viewer – Online public key viewer Tool

Inspect Public Keys Online

Sometimes you have a public key file and need to know its properties—is it 2048 or 4096 bits? What is its unique fingerprint? Our Public Key Viewer provides a detailed breakdown of RSA public keys instantly.

Understanding Key Fingerprints

A fingerprint is a hash of the public key. Because the actual key is very large, fingerprints provide a convenient way to verify that you have the correct key. For example, when you first connect to an SSH server, it shows you its public key fingerprint to verify its identity.

Privacy & Performance

As with all metatool.in security tools, the parsing happens entirely in your browser using the node-forge library. No data is transmitted to our servers, ensuring your development keys and public assets remain private and secure.

Frequently Asked Questions

A public key contains the public exponent and the modulus. It also identifies the algorithm used (like RSA). From this information, we can calculate the bit length and the fingerprint (a hash of the key).

Yes. Public keys are designed to be shared. Furthermore, this tool processes the key entirely in your browser; no data is ever sent to a server.

A fingerprint is a shorter, human-readable string (usually a hash like MD5 or SHA-256) that uniquely identifies a much larger public key. It is often used to verify that you are connecting to the correct server via SSH.

Related Free Tools

RSA Key Generator — Generate RSA public/private key pairs in PEM format.
SSH Key Generator — Generate secure SSH key pairs (OpenSSH format).