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We are making important changes to the App Review process. Learn more. Web SDKs JavaScript SDK Quickstart Advanced Setup Examples Frameworks Reference PHP SDK On This Page Quickstart: Facebook SDK for JavaScript The Facebook SDK for JavaScript provides a rich set of client-side functionality that: Enables you to use the Like Button and other Social Plugins on your site. Enables you to use Facebook Login to lower the barrier for people to sign up on your site. Makes it easy to call into Facebook's Graph API. Launch Dialogs that let people perform various actions like sharing stories. Facilitates communication when you're building a game or an app tab on Facebook. This quickstart will show you how to setup the SDK and get it to make some basic Graph API calls. If you don't want to setup just yet, you can use our JavaScript Test Console to use all of the SDK methods, and explore some examples (you can skip the setup steps, but the rest of this quickstart can be tested in the console). Supported Browsers The Facebook SDK for JavaScript supports the latest two versions of the most popular browsers: Chrome, Firefox, Edge, Safari (including iOS), and Internet Explorer (version 11 only). Basic Setup The Facebook SDK for JavaScript doesn't have any standalone files that need to be downloaded or installed, instead you simply need to include a short piece of regular JavaScript in your HTML that will asynchronously load the SDK into your pages. The async load means that it does not block loading other elements of your page. The following snippet of code will give the basic version of the SDK where the options are set to their most common defaults. You should insert it directly after the opening tag on each page you want to load it: