How do I import the converted key into cPanel?

In cPanel, open SSH Access, choose Manage SSH Keys, select Import Key, paste the converted public key, and then authorize the imported key before connecting.

FREE BROWSER-BASED SSH KEY TOOL

SSH2 to cPanel Public Key Converter

Q: What does SSH2cPanel convert?

SSH2cPanel converts an SSH2 public key block defined by RFC 4716 into the one-line OpenSSH public key format used by cPanel and authorized_keys files.

Q: Which SSH public key types are supported?

The converter supports OpenSSH RSA, Ed25519, ECDSA, DSA, compatible FIDO hardware security keys, OpenSSH certificates, and future labels in the standard SSH algorithm families.

Convert an SSH2/RFC 4716 public key into the one-line OpenSSH format used by cPanel and authorized_keys files. Paste a key or upload your .pub file and SSH2cPanel will locate the key, validate its encoded data, and output only the key type and Base64 payload—for example, ssh-rsa AAAA….

The entire conversion runs locally inside your browser. Your public key is never uploaded to our server, saved in a database, or shared with another service. For your safety, only use a public key here—never paste or upload a private SSH key.

SSH2 or OpenSSH public key

Upload .pub

or drop a public key file here

Awaiting public key

cPanel-ready OpenSSH key

OPENSSH / ONE LINE

Ready to convert

HOW IT WORKS

Convert and import your SSH public key

SSH2/RFC 4716 files use begin and end markers with key data wrapped across several lines. cPanel and OpenSSH authorized_keys commonly use a single line containing the algorithm name and Base64 payload. This tool extracts and validates that public key material, then produces the one-line form without changing the key itself. It does not generate, alter, or access your private key.

1
Paste or upload the public keyPaste an SSH2/RFC 4716 block or upload its public .pub file. One-line OpenSSH keys beginning with ssh-rsa, ssh-ed25519, or ecdsa-sha2 are also accepted and validated.
2
Review and copy the OpenSSH keyThe converter validates the Base64 key payload, reads its embedded algorithm, and produces one clean line such as ssh-rsa AAAA…. Copy the result or download it as a public key file.
3
Import and authorize the key in cPanelOpen SSH Access → Manage SSH Keys → Import Key, paste the converted result into the public key field, and import it. Use Manage to authorize the key before attempting an SSH connection.

COMMON QUESTIONS

OpenSSH and cPanel key conversion FAQ

What does SSH2cPanel convert?

It converts an SSH2 public key block defined by RFC 4716 into the one-line OpenSSH public key form used by cPanel and authorized_keys. Existing OpenSSH keys are also validated and normalized to the same clean output.

Is my SSH public key uploaded or stored?

No. Parsing, validation, conversion, copying, and download creation happen locally in your browser. Your key is not sent to the website server. No account or login is required.

Which SSH public key types are supported?

SSH2cPanel supports OpenSSH RSA, Ed25519, ECDSA, DSA, compatible FIDO hardware security keys, OpenSSH certificates, and future labels in the standard SSH algorithm families. The tool rejects private keys and malformed public key data.

How do I import the key into cPanel?

Sign in to cPanel and open SSH Access. Select Manage SSH Keys, choose Import Key, and paste the converted text into the public key field. After importing, manage the key and click Authorize.