Flutterexperts

In today’s app-driven world, user authentication is essential for most mobile and web applications. Whether you’re building a social app, e-commerce platform, or internal business tool, securely identifying users is critical. Luckily, FlutterFlow—a powerful visual development platform—makes it easy to integrate Firebase Authentication without needing to write complex code.

In this blog, we’ll walk through the step-by-step process of integrating Firebase Auth in your FlutterFlow project, covering email/password login, sign-up, and guest login.

What is Firebase Authentication?

Firebase Authentication is a service that can authenticate users using only client-side code. It supports multiple authentication methods including:

• Email/Password
• Phone Number
• Google, Facebook, and other providers
• Anonymous (Guest) sign-ins

🛠 Prerequisites

Before you get started, make sure you have the following:

• A Firebase project
• A FlutterFlow account
• A project already created in FlutterFlow

Step 1: Set Up Firebase Project

1. Go to the Firebase Console: https://console.firebase.google.com
2. Click “Add project”, follow the setup flow, and disable Google Analytics (optional).
3. After the project is created, go to the Project Settings > General.
4. Under “Your apps”, click </> (Web) to register your app.
5. Name your app (e.g., flutterflow_app) and click Register App.
6. Copy the Firebase configuration values like apiKey, authDomain, and projectId for later use in FlutterFlow.

Step 2: Add Firebase to FlutterFlow

1. Open your FlutterFlow project.
2. Go to the Firebase tab on the left sidebar.
3. Click Connect.
4. Paste the apiKey, authDomain, projectId, and other config keys you got from Firebase.
5. Enable the Authentication, Firestore, and Storage options based on your needs.
6. Click Save.

Step 3: Enable Firebase Authentication

1. In Firebase Console, go to Authentication → Sign-in Method.
2. Enable Email/Password.
3. Optionally enable Anonymous for guest logins.

Step 4: Add Authentication Pages in FlutterFlow

FlutterFlow comes with built-in templates for user auth. To use them:

1. Go to the “Authentication” tab in the page list.
2. Click + Add Auth Pages.
3. Choose options like Sign Up, Login, Forgot Password, and Profile Page.
4. FlutterFlow will automatically connect the UI and logic using Firebase Auth.

🧪 Step 5: Set Authentication Actions

If you’re designing a custom login page:

1. Add TextFields for email and password.
2. Add a Button and go to the Actions tab.
3. Set the On Tap action to Login (Firebase Auth) or Create Account (Firebase Auth).
4. Map the input fields to the email and password parameters.

Step 6: Implement Guest Login (Optional)

To allow guest login:

1. Add a button labeled “Continue as Guest”.
2. In the Actions tab, choose Firebase Authentication → Anonymous Login.
3. Redirect the user to your dashboard/home page after success.

Step 7: Redirect Based on Auth State

1. Open the App Settings > App Startup Flow.
2. Set the Initial Page to:
   • Home Page if the user is logged in.
   • Login Page if the user is not logged in.
3. This ensures users are always directed to the correct screen on app launch.

Final Testing

• Run your app in Test Mode or use the Run button.
• Try creating a new user, logging in, logging out, and guest login.
• Firebase Console will show registered users under Authentication > Users.

Bonus Tips

• Use Firebase Firestore to store user profiles and metadata.
• Implement user roles using custom claims for admin/user separation.
• Add Re-authentication flow for security-sensitive operations like password change.

Conclusion

Integrating Firebase Authentication in FlutterFlow is quick and code-free for most basic implementations. It enables you to build secure, scalable apps with login, signup, and guest access—all using FlutterFlow’s visual interface and Firebase’s backend power.

Start building smarter apps today with FlutterFlow and Firebase Auth!

Feel free to connect with us:
And read more articles from FlutterDevs.com.

FlutterDevs team of Flutter developers to build high-quality and functionally-rich apps. Hire Flutterflow developer for your cross-platform Flutter mobile app project on an hourly or full-time basis as per your requirement! For any flutter-related queries, you can connect with us on Facebook, GitHub, Twitter, and LinkedIn.

We welcome feedback and hope that you share what you’re working on using #FlutterDevs. We truly enjoy seeing how you use Flutter to build beautiful, interactive web experiences.