SSH Key Pair Generator

What is an SSH Key Pair Generator?

Generate OpenSSH public keys (`id_rsa.pub`) and private keys (`id_rsa`) in standard OpenSSH PEM format for Linux SSH server logins, GitHub, GitLab, and Bitbucket authentication.

Why Use This Tool?

Linux Server SSH Authentication: Create SSH key pairs to secure remote SSH access on Ubuntu, Debian, or AWS EC2 Linux servers.
GitHub & GitLab Deploy Keys: Generate deploy keys for automated CI/CD pipeline server deployments.
Passwordless Login: Replace password authentication with cryptographic SSH key pairs.

How to Use

Select Key Type: RSA 2048-bit or RSA 4096-bit.
Enter optional Key Comment (e.g. `user@devdeskapp.com`).
Click Generate SSH Key Pair and copy `id_rsa.pub` and `id_rsa` keys.

Real Working Example

Input:

Key Type: RSA 4096 bits | Comment: admin@server.com

Output Result:

Public Key (id_rsa.pub):
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQ... admin@server.com

Private Key (id_rsa):
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAA...

Important Technical Details & Security Standards

OpenSSH Key Format Engine: Generates RFC 4253 public keys (`ssh-rsa ...`) and OpenSSH private key blocks.
Web Crypto CSPRNG: Uses browser hardware acceleration for 4096-bit prime number key generation.
100% Local Browser Security: Private SSH keys are generated strictly inside local browser memory.

Related Security & Crypto Tools

RSA Key Pair Generator: Generate RSA key pairs.
CSR Generator: Generate Certificate Signing Requests.
Token Generator: Generate secret tokens.

Frequently Asked Questions

Where do I add the public SSH key (id_rsa.pub)?

Paste the public key into ~/.ssh/authorized_keys on your Linux server or in your GitHub/GitLab account SSH settings.

What is the recommended SSH key size for RSA?

RSA 3072-bit or 4096-bit is recommended for strong server security.

Are my private SSH keys uploaded to a server?

No, SSH key generation runs 100% locally inside your web browser.

Is it free?

Yes, 100% free.

What file permissions should I set for my private SSH key on Linux/Mac?

Set strict permissions using `chmod 600 id_rsa` to prevent unauthorized access errors.

Can I use this generated SSH key with PuTTY on Windows?

Yes, convert the private key using PuTTYgen or use OpenSSH natively in Windows PowerShell.