SSH public key fingerprint checker
Calculate OpenSSH public-key fingerprints and check key-type consistency.
Input is not uploaded, not written to URL state, and not stored. This page does not contact SSH hosts, verify ownership, check authorized_keys options, or process private keys.
Paste one or more public key lines such as ssh-ed25519 AAAA... comment. Private key blocks are rejected before decoding.
Ready. Analysis runs only in this browser.
Open a local public key file
Drop an OpenSSH .pub file or authorized_keys text here, or choose it locally. File text is only copied into the input box; it is not uploaded or stored.
Per-line evidence and shareable report
| Line | Declared type | Blob type | Family | Blob bytes | Comment | Fingerprint preview | Status |
|---|---|---|---|---|---|---|---|
| Waiting for local analysis | |||||||
Use the fingerprint output for exact manual comparison. Use the complete analysis report for collaboration; it keeps only algorithm shape, buckets, mismatch counts, and boundary statements.