Before creating a developer account, login in to your Facebook account.Login to Facebook
You'll need Facebook developer account to get started. If you don't have one upgrade your personal Facebook account to a Facebook Developer account now. Skip this step, if you already have a developer account.Create Developer Account
Choose Apps in the header navigation and select Add a New App or use the button below.Create new Facebook App
Choose the platform you want to add. If your app is on multiple platforms, you'll be able to add them to your Facebook app later.
Choose a name for your app and select Create New Facebook App ID. Choose a category for your app. If you're creating a test version of an existing Facebook app, select the app you're testing.
The quick start wizard will help you to set up your Facebook app for the selected platform. You can come back to the quick start wizard at a later time to either continue your setup or add a new platform to your app.
Facebook auto-generates an app secret associated with your application. The application secret authenticates requests made by your application to Facebook servers and should be treated like a password.
Do not output your Facebook application secret in your webpage markup; be careful when committing files containing this value into source control software such as a public Git or Subversion repository.
You need to add a contact email for each app. Go to your app's dashboard and select the navigation item Settings in the left sidebar and provide a valid contact email.
Select the App Details on the left sidebar to view and add additional information about your app.
If you want your app to be listed in app center, turn on the App Center Listed Platform setting for your website or mobile site. Add icons, promotional images, and videos. Make sure to follow the App Center Guidelines to be approved for listing in App Center.
New Facebook apps exist in development mode by default. This limits published actions and related objects such as friend tagging to Facebook Timelines owned by a developer of the application.
Once your application is ready for public use you can switch from development mode to public mode to allow your app to interact with Facebook accounts not associated with your app.
If your app uses advanced FB Login or Messenger permissions, or if you want your app to be listed in App Center, you need to submit the app for review. Learn more about the review process and what's required to pass review.Login Review Guide