All The Validators logoAll The Validators

security validator

SSH Public Key Validator

Validate SSH public keys (type and bit-length) locally. No keys are stored or sent.

Results

Paste input and validate locally.
Status
Ready when you validate.
Details
Ready when you validate.
Key type
Ready when you validate.
Key size (bits)
Ready when you validate.

Rules & checks

Parses SSH public keys (e.g., ssh-rsa, ssh-ed25519, ecdsa) locally using sshpk.

Reports key type and bit-length when available.

No keys are stored or sent anywhere.

When to use it

  • Check SSH keys before adding to authorized_keys or CI/CD secrets
  • Validate keys submitted via forms or support requests
  • Ensure minimum key size requirements are met

Tips

  • Avoid pasting private keys; this validator is for public keys only
  • Enforce minimum RSA sizes (e.g., 2048 bits) if your org requires it

Examples

Valid RSA

  • ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQ... -> valid

Valid ed25519

  • ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAA... -> valid

Invalid

  • garbled key -> parse error

FAQs

Do you store my key?
No. Parsing happens in your browser and clears on refresh.
Can I validate private keys?
No. Only public keys are supported here for safety.

Related validators

security

Hash Generator (MD5 / SHA1 / SHA256)

Generate MD5, SHA1, or SHA256 hashes locally—no data leaves your browser.

developer

Base64 Validator

Validate and decode standard or URL-safe Base64 entirely in your browser—no uploads or storage.

Format and size validation only; does not assess key security policies or ownership.