Google Login for WordPress

Adds a "Continue with Google" button to your WordPress login page using secure OAuth 2.0.

Requirements

• WordPress 5.8+
• PHP 7.4+
• An HTTPS-enabled site (required by Google for production)

Step 1 — Install the Plugin

1. Copy the google-login-wp folder into wp-content/plugins/
2. Go to WordPress Admin → Plugins → Installed Plugins
3. Find Google Login for WordPress and click Activate

Step 2 — Create Google OAuth Credentials

1. Go to console.cloud.google.com
2. Click Select a project → New Project, give it a name, click Create
3. Go to APIs & Services → OAuth consent screen
   • Choose External → click Create
   • Fill in: App name, support email, developer email → Save and Continue
   • On the Scopes step, add: openid, email, profile → Save and Continue
   • Finish the remaining steps
4. Go to APIs & Services → Credentials → Create Credentials → OAuth 2.0 Client ID
   • Application type: Web application
   • Under Authorized redirect URIs, click Add URI and paste your redirect URI (see Step 3)
   • Click Create
5. Copy your Client ID and Client Secret — you'll need them in Step 4

Step 3 — Find Your Redirect URI

1. In WordPress, go to Settings → Google Login
2. Copy the Redirect URI shown on that page — it looks like:

   https://yoursite.com/wp-login.php?glwp_action=google_callback

3. Paste it into Google Cloud Console (Step 2 → Step 4 above)

⚠️ The URI must match exactly — no trailing slash differences, no HTTP vs HTTPS mismatch.

Step 4 — Configure the Plugin

1. Go to Settings → Google Login in your WordPress admin
2. Paste your Client ID and Client Secret
3. Choose whether to allow Auto-register new users (creates a WordPress account automatically for first-time Google users)
4. Click Save Settings
5. The status table at the bottom of the page should show ✅ for all items

Step 5 — Test It

1. Open your login page (/wp-login.php) in a private/incognito browser window
2. You should see a "Continue with Google" button below the login form
3. Click it → approve on Google → you should land on your dashboard

File Structure

google-login-wp/
├── google-login-wp.php      ← Main plugin file
├── includes/
│   ├── functions.php        ← Shared helpers & settings
│   ├── oauth.php            ← Builds Google redirect URL
│   ├── callback.php         ← Handles Google's response & token exchange
│   ├── user.php             ← Creates or logs in WordPress users
│   └── admin.php            ← Settings page
└── assets/css/
    └── google-button.css    ← Button styling

License

GPL-2.0+ — free to use, modify, and distribute.