Sign in with Google — showcase

• ID token
  1. Standard "Sign in with Google" button
  Google's rendered button, gives you an ID token (JWT) with the user's profile. The easiest, most common integration.
• ID token · One Tap
  2. One Tap prompt
  The frictionless floating prompt that appears automatically for signed-in Google users, no button click needed.
• ID token · custom UI
  3. Custom button, Google popup
  Your own styled button that triggers Google's One Tap / account-chooser popup programmatically.
• OAuth2 access token
  4. OAuth2 token flow (userinfo scope)
  Requests an OAuth2 access token directly (no ID token) and calls Google's userinfo endpoint. Useful when you need scopes beyond basic profile/email.

Client ID used across all variants: 1000584830309-l7ld0h6cijs8gvhr2o86qpi7hka637u3.apps.googleusercontent.com

Also want to see how this compares to Apple? Sign in with Apple showcase → (needs a paid Apple Developer account and an HTTPS domain — won't run out of the box like this one).