Add Google Login Button to Your Website (Step-by-Step OAuth Tutorial)

Get The Full Workflow & Prompts: https://www.skool.com/empire-os-4374 Book A Call for Custom AI Solutions: https://www.letitconvert.com/ Google Cloud Console: https://console.cloud.google.com/ Supabase: https://supabase.com/ In this comprehensive 2026 tutorial, I’ll walk you through the step-by-step process of adding Google Login (OAuth) to your website or SaaS. We’ll be using Supabase for backend authentication, Google Antigravity IDE for development, and Vercel for live deployment. Whether you are a beginner or an experienced developer, this workflow will help you professionalize your user onboarding experience by allowing users to sign in with a single click. 🚀 What You’ll Learn: Setting up a Supabase project and managing API keys. Configuring the Google Cloud Console for OAuth credentials. Using Google Antigravity IDE to connect your frontend and backend. Managing environment variables (.env) for secure authentication. Deploying your project to Vercel and linking it with Supabase integrations. Troubleshooting common "Site URL" and "Redirect URI" errors. ⏰ Timestamps: 00:00 - Intro: Google Auth for Websites & SaaS 00:28 - Setting up your Supabase Project 00:50 - Connecting API Keys in Google Antigravity 02:01 - Configuring Auth Providers in Supabase 02:44 - Creating a Project in Google Cloud Console 03:20 - Internal vs. External Audience Settings 04:32 - Setting up OAuth Client ID & Redirect URIs 05:50 - Testing Google Login on Localhost 06:20 - Pushing Code to GitHub 07:06 - Deploying to Vercel & Supabase Integration 08:35 - Final Step: Updating Production Redirect URLs 09:06 - Outro & Join the Community 📱 Find Me On Social: Instagram: https://www.instagram.com/erik_lazar/ Email: skylarmarketingagency@gmail.com If you found this helpful, please Like, Subscribe, and hit the notification bell! 🔔 #GoogleLogin #Supabase #WebDevelopment #SaaS #Vercel #GoogleCloud #OAuth #CodingTutorial