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sshark.appsshark

Search for any user's public SSH keys instantly. Find keys by username, reverse lookup key ownership, or filter by encryption type. Quick, secure, and developer-friendly.

© 2026 SSHark • Free SSH key lookup, forever

Built by Merlindorin

Quickstart

Learn how to search and query SSH keys effectively.

First off, thank you for using sshark.app

Basic Search

Simply type a username or search term:

merlindorin

By default, this searches across source.username and source.provider fields.

Field-Specific Search

Use field prefixes with curly braces to search specific attributes:

  • @source.username:{merlindorin} — Search by username
  • @fingerprint:{SHA256:abc*} — Reverse lookup by fingerprint
  • @comment:{work} — Search in key comments

Available Fields

All fields are tag fields and use curly brace syntax:

FieldDescription
@idKey identifier (UUID)
@fingerprintKey fingerprint (SHA256:...)
@algorithmssh-rsa, ssh-ed25519, ecdsa-sha2-nistp256
@commentKey comment
@key_bitsKey size in bits
@source.usernameOwner username
@source.providerPlatform: github, gitlab, etc.
@source.user_idProvider user ID
@source.uriSource URL

Tag Filters

Filter by source platform or key algorithm:

  • @source.provider:{github} — Only keys from GitHub
  • @source.provider:{github|gitlab} — Keys from GitHub or GitLab
  • @algorithm:{ssh-ed25519} — Only Ed25519 keys

Query Operators

Combine filters with operators:

  • @source.username:{foo} | @source.provider:{bar} — OR
  • @source.username:{foo} & @source.provider:{bar} — AND
  • @source.username:{foo} & (@source.provider:{github} | @source.provider:{gitlab}) — Grouped

Wildcards

PatternDescription
@source.username:{merl*}Prefix wildcard — matches merlindorin, merlin, etc.
@source.username:{*bar*}Contains wildcard
@source.username:{merlindorin}Exact match

Reverse Lookup

Have a key and want to find who owns it? Search by fingerprint:

SHA256:abcdef1234567890

Or use the field syntax for more control:

@fingerprint:{SHA256:abc*}