OpenSSH Public Key Inspector
Parse OpenSSH public keys and authorized_keys files — type, options, SHA256 and MD5 fingerprints.
About this tool
Paste one public key line or a full authorized_keys file to audit SSH access before deploys. Each line is parsed with optional restrictions (from=, command=, no-port-forwarding, …) and compared via SHA256 or MD5 fingerprints.
What you get
- Single .pub line or multi-line authorized_keys parse
- Key type (ssh-rsa, ssh-ed25519, ecdsa-sha2-*, …)
- OpenSSH options per line when present
- SHA256 and MD5 fingerprints per key
- Duplicate fingerprint detection across the paste
- Per-key copy — SHA256 fingerprint or full line
How to use
Paste a .pub line or entire authorized_keys file. Skipped comments and errors are reported per line. Use Copy all SHA256 for bulk server comparison.
Related searches
- ssh key fingerprint
- authorized_keys parser
FAQ
How to get SHA256 fingerprint of SSH public key?
Paste an OpenSSH public key line and copy the SHA256 fingerprint shown—matches ssh-keygen -lf output format.
How to parse authorized_keys file online?
Paste the full file; each key line is parsed with options, type, fingerprints, and comments on separate rows.
What is the difference between SHA256 and MD5 SSH fingerprints?
SHA256 is the modern default in OpenSSH; MD5 remains for legacy comparisons with older docs and panels.
How to detect duplicate SSH keys?
Paste multiple lines or a full authorized_keys file—duplicate fingerprints are flagged so you can deduplicate access.
How to verify GitHub SSH key fingerprint before adding?
Paste the published public key line and compare the SHA256 fingerprint to GitHub's documented host or key fingerprint before trusting it.
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