SSH Key Generator

Generate secure Ed25519 and RSA 4096 SSH key pairs in-browser with automated OpenSSH terminal commands and SSH config snippets.

SSH Key Pair Generator Configuration

Configure algorithm, key size, and comment for GitHub, GitLab, and Linux servers

Cryptographic Algorithm

Key Comment / Identity Tag

Client-Side Security Notice: Key simulation and generation occur strictly inside your browser environment. Private keys never leave your device or touch external servers.

Public Key (id_ed25519.pub)Safe to Share

Add this key to GitHub SSH Keys, GitLab, or ~/.ssh/authorized_keys on your remote servers.

ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAI4wBJTjUSM8dGNHteA9+n/SLygK83k88vgZ2CqsQX7eY user@workstation

Private Key (id_ed25519)Keep Secret

Save to ~/.ssh/id_ed25519 and run chmod 600 ~/.ssh/id_ed25519.

Recommended Terminal Command(Generate natively on macOS / Linux / WSL)

ssh-keygen -t ed25519 -a 100 -C "user@workstation" -f ~/.ssh/id_ed25519

Automated SSH Config Generator (~/.ssh/config)

Quickly configure host routing to avoid remembering IPs or port flags when connecting with SSH.

Host Alias

HostName / IP

Remote User

Host github.com
    HostName github.com
    User git
    IdentityFile ~/.ssh/id_ed25519
    IdentitiesOnly yes

Secure Remote Access with Public Key Authentication

Secure Shell (SSH) is the backbone of remote server administration, Git version control, and container orchestration. Traditional password-based authentication is vulnerable to brute-force attacks and credential stuffing. Public key cryptography replaces passwords with an asymmetrical mathematical keypair: a public key placed on the server, and a private key stored exclusively on your client device.

Common Applications

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GitHub, GitLab & Bitbucket Authentication
Generate modern Ed25519 public keys to link to Git hosting providers, enabling passwordless `git push` over encrypted SSH channels.
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Cloud Server Access (AWS EC2, DigitalOcean, Hetzner)
Create dedicated, hardened private/public key pairs for provisioning new Ubuntu, Debian, or Rocky Linux cloud VPS instances without exposing password auth.
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CI/CD Deployment Pipelines & Bastion Hosts
Produce automated deployment keys with custom comment identifiers for GitHub Actions, GitLab CI, and Jumpbox proxying.
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SSH Config Host Routing (~/.ssh/config)
Generate ready-to-paste host blocks to manage multiple identities across work and personal repositories seamlessly.

Key Capabilities

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Modern Ed25519 & RSA 4096 Cryptography

Supports both ultra-fast, high-security Edwards-curve Ed25519 keys and universally compatible 4096-bit RSA keys.

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100% Client-Side Privacy

All key generation logic executes strictly in your browser using local cryptographic randomness without sending private data over the network.

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One-Click File Downloads

Download your public (`.pub`) and private OpenSSH keys directly to your disk with standardized file naming.

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Native Terminal CLI Generator

Prefer generating keys directly in your terminal? Get pre-formatted `ssh-keygen` shell commands with optimal security flags.

Frequently Asked Questions

Why is Ed25519 recommended over RSA?

Ed25519 uses elliptic curve cryptography (Curve25519) that provides higher security with a much shorter key length (68 characters vs hundreds for RSA), faster handshake calculations, and immunity to timing attacks.

Is it safe to generate SSH keys in a web browser?

This tool executes completely in your local browser environment. However, for maximum enterprise-grade root server security, we provide the native `ssh-keygen` command so you can execute the operation directly inside your audited terminal.

Where should I store my generated SSH keys on my computer?

On macOS and Linux, store keys in `~/.ssh/` (e.g. `~/.ssh/id_ed25519`). Ensure permissions are restricted via `chmod 600 ~/.ssh/id_ed25519` and `chmod 644 ~/.ssh/id_ed25519.pub`.