Simple Sign-In with Facebook provides Facebook sign-in with OAuth 2.0 for Android, iOS, Windows, Mac, Universal Windows Platform (UWP) and WebGL apps made with Unity. You can also get access tokens to make REST API calls.
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This is a paid asset, but now you can download Simple Facebook Sign-In for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Simple Sign-In with Facebook v2.7 (15 Oct 2025) (Latest version)
Simple Facebook Sign-In v2.2
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Simple Facebook Sign-In provides Facebook sign-in with OAuth 2.0 for Android, iOS, Windows, Mac, Universal Windows Platform (UWP) and WebGL apps made with Unity.
Need sign-in for Google? Try my another asset Simple Google Sign-In!
Benefits:
● Cross-platform user auth for cross-platform games and apps
● No plugins, not 3rd party libs, no dependencies
● No impact to build size
● More security for client-server apps (get access token on a client, get all user data on a server to avoid tampering)
● JSON Web Tokens (JWT) validation
Setup steps:
Please visit our GitHub for setup instructions.
General workflow:
● Your app navigates users to Facebook using a default web browser
● Users perform sign-in to their Facebook account
● Facebook redirects users to Authorization Middleware and provides an auth code in URI parameters
● Authorization Middleware activates your app using deep linking (when possible)
● The app is activated and obtains the authorization code
● The app exchanges the code for an access token
● The app requests user data with the access token (ID, name, email and other data according access scope defined)
Known issues:
● AndroidManifest.xml workaround for Unity 2022
● Some web browsers may block deep links by default. Test on another device or browser if redirecting doesn’t happen.
Support:
● GitHub – Wiki
● GitHub – FAQ & Troubleshooting
● GitHub – Bugs & requests
● Discord – Questions, live chat with developers
● Unity forums – Discussion
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