Git Remote URL (SSH) Regex for JavaScript

What this pattern does

This page provides a comprehensive, battle-tested regular expression for matching git remote url (ssh), ported and verified for JavaScript. A rigorously tested regex reduces debugging time and protects your application from edge-case failures. The snippet below is ready to drop into your JavaScript project — whether you're validating in an Express middleware, a Next.js API route, or a client-side form.

Javascript Implementation

// Git Remote URL (SSH)
// ReDoS-safe | RegexVault — Dev & Systems > Git

const gitRemoteUrlSshRegex = /^git@([a-zA-Z0-9][a-zA-Z0-9\-.]{0,61}[a-zA-Z0-9]):([a-zA-Z0-9_.\-][a-zA-Z0-9_.\-\/]{0,253}(?:\.git)?)$/;

function validateGitRemoteUrlSsh(input: string): boolean {
  return gitRemoteUrlSshRegex.test(input);
}

// Example
console.log(validateGitRemoteUrlSsh("git@github.com:user/repo.git")); // true

Test Cases

When to use this pattern

This pattern is drawn from the Dev & Systems > Git category and carries a ReDoS-safe certification. That matters for JavaScript developers because especially critical in long-running Node.js event loops where a ReDoS vulnerability can block the entire process. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

SSH Git URLs use SCP-like syntax (host:path). Group 1 = hostname, group 2 = repository path. The colon is not a port separator here.