Authentication | Google for Developers

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content="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/developers/images/opengraph/teal.png"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="675"><meta property="og:locale" content="en"><meta name="twitter:card" content="summary_large_image"><script type="application/ld+json"> { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{ "@type": "ListItem", "position": 1, "name": "Google Identity", "item": "https://developers.google.com/identity" },{ "@type": "ListItem", "position": 2, "name": "Authentication", "item": "https://developers.google.com/identity/authentication" }] } </script> <link rel="stylesheet" href="/extras.css"></head> <body class="" template="landing" theme="teal" type="product" layout="full" concierge='hide' pending> <devsite-progress type="indeterminate" id="app-progress"></devsite-progress> <section class="devsite-wrapper"> <devsite-cookie-notification-bar></devsite-cookie-notification-bar><devsite-header role="banner"> <div class="devsite-header--inner nocontent"> <div class="devsite-top-logo-row-wrapper-wrapper"> <div class="devsite-top-logo-row-wrapper"> <div class="devsite-top-logo-row"> <button type="button" id="devsite-hamburger-menu" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Navigation menu button" visually-hidden aria-label="Open menu"> </button> <div class="devsite-product-name-wrapper"> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item devsite-has-google-wordmark"> <a href="https://developers.google.com/identity" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Upper Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Google Identity" > <h1 class="devsite-product-name"><svg class="devsite-google-wordmark" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 148 48"> <title>Google</title> <path class="devsite-google-wordmark-svg-path" d="M19.58,37.65c-9.87,0-18.17-8.04-18.17-17.91c0-9.87,8.3-17.91,18.17-17.91c5.46,0,9.35,2.14,12.27,4.94l-3.45,3.45c-2.1-1.97-4.93-3.49-8.82-3.49c-7.21,0-12.84,5.81-12.84,13.02c0,7.21,5.64,13.02,12.84,13.02c4.67,0,7.34-1.88,9.04-3.58c1.4-1.4,2.32-3.41,2.66-6.16H19.58v-4.89h16.47c0.18,0.87,0.26,1.92,0.26,3.06c0,3.67-1.01,8.21-4.24,11.44C28.93,35.9,24.91,37.65,19.58,37.65z M61.78,26.12c0,6.64-5.1,11.53-11.36,11.53s-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53S61.78,19.43,61.78,26.12z M56.8,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C53.84,33.11,56.8,30.22,56.8,26.12z M87.25,26.12c0,6.64-5.1,11.53-11.36,11.53c-6.26,0-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53C82.15,14.59,87.25,19.43,87.25,26.12zM82.28,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C79.32,33.11,82.28,30.22,82.28,26.12z M112.09,15.29v20.7c0,8.52-5.02,12.01-10.96,12.01c-5.59,0-8.95-3.76-10.22-6.81l4.41-1.83c0.79,1.88,2.71,4.1,5.81,4.1c3.8,0,6.16-2.36,6.16-6.77v-1.66h-0.18c-1.14,1.4-3.32,2.62-6.07,2.62c-5.76,0-11.05-5.02-11.05-11.49c0-6.51,5.28-11.57,11.05-11.57c2.75,0,4.93,1.22,6.07,2.58h0.18v-1.88H112.09z M107.64,26.16c0-4.06-2.71-7.03-6.16-7.03c-3.49,0-6.42,2.97-6.42,7.03c0,4.02,2.93,6.94,6.42,6.94C104.93,33.11,107.64,30.18,107.64,26.16z M120.97,3.06v33.89h-5.07V3.06H120.97z M140.89,29.92l3.93,2.62c-1.27,1.88-4.32,5.11-9.61,5.11c-6.55,0-11.28-5.07-11.28-11.53c0-6.86,4.77-11.53,10.71-11.53c5.98,0,8.91,4.76,9.87,7.34l0.52,1.31l-15.42,6.38c1.18,2.31,3.01,3.49,5.59,3.49C137.79,33.11,139.58,31.84,140.89,29.92zM128.79,25.77l10.31-4.28c-0.57-1.44-2.27-2.45-4.28-2.45C132.24,19.04,128.66,21.31,128.79,25.77z"/> </svg>Identity</h1> </a> </li> </ul> </span> </div> <div class="devsite-top-logo-row-middle"> <div class="devsite-header-upper-tabs"> <devsite-tabs class="upper-tabs"> <nav class="devsite-tabs-wrapper" aria-label="Upper tabs"> <tab class="devsite-dropdown devsite-active "> <a href="https://developers.google.com/identity/authentication" track-metadata-eventdetail="https://developers.google.com/identity/authentication" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - authentication" track-metadata-module="primary nav" aria-label="Authentication, selected" data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" > Authentication </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Authentication" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/authentication" track-metadata-position="nav - authentication" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Sign In with Google SDKs</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/android-credential-manager" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/android-credential-manager" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Credential Manager for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/gsi/web/guides/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/gsi/web/guides/overview" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Sign In with Google for Web (including One Tap) </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/ios/start" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/ios/start" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Google Sign-In for iOS and macOS </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Industry standards</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/passkeys" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/passkeys" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Passkeys </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/openid-connect/openid-connect" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/openid-connect/openid-connect" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> OpenID Connect </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Legacy Sign In</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/one-tap/android/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/one-tap/android/overview" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> One Tap sign-up/sign-in for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/android/legacy-start-integrating" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/android/legacy-start-integrating" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Google Sign-In for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/web/sign-in" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/web/sign-in" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Google Sign-In for Web </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown "> <a href="https://developers.google.com/identity/authorization" track-metadata-eventdetail="https://developers.google.com/identity/authorization" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - authorization" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" > Authorization </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Authorization" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/authorization" track-metadata-position="nav - authorization" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Call Google APIs</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/android/authorize-access" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/android/authorize-access" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Authorizing for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/oauth2/web/guides/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/oauth2/web/guides/overview" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Authorizing for Web </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/ios/api-access" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/ios/api-access" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Authorizing for iOS/macOS </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/protocols/oauth2" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/protocols/oauth2" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Using OAuth 2.0 </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Share data with Google apps and devices</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/account-linking" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/account-linking" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Google Account Linking </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown "> <a href="https://developers.google.com/identity/credential-management" track-metadata-eventdetail="https://developers.google.com/identity/credential-management" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - credential management" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" > Credential management </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Credential management" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-management" track-metadata-position="nav - credential management" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Android</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/android-credential-manager" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/android-credential-manager" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Credential Manager </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/blockstore/android" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/blockstore/android" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Blockstore </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/smartlock-passwords/android/associate-apps-and-sites" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/smartlock-passwords/android/associate-apps-and-sites" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Digital Asset Links </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developer.android.com/guide/topics/text/autofill" track-type="nav" track-metadata-eventdetail="https://developer.android.com/guide/topics/text/autofill" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Android autofill framework </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Web</li> <li class="devsite-nav-item"> <a href="https://web.dev/sign-in-form-best-practices/" track-type="nav" track-metadata-eventdetail="https://web.dev/sign-in-form-best-practices/" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Autocomplete </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Cross-platform</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/credential-sharing" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-sharing" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Seamless credential sharing </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown "> <a href="https://developers.google.com/identity/credential-verification" track-metadata-eventdetail="https://developers.google.com/identity/credential-verification" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - credential verification" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" > Credential verification </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Credential verification" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-verification" track-metadata-position="nav - credential verification" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Android</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sms-retriever/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sms-retriever/overview" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Verify users by SMS </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/phone-number-hint/android" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/phone-number-hint/android" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Phone Number Hint </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Web</li> <li class="devsite-nav-item"> <a href="https://web.dev/web-otp/" track-type="nav" track-metadata-eventdetail="https://web.dev/web-otp/" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Verify phone numbers on the web </div> </a> </li> </ul> </div> </div> </div> </tab> </nav> </devsite-tabs> </div> <devsite-search enable-signin enable-search enable-suggestions enable-query-completion project-name="Authentication" tenant-name="Google for Developers" project-scope="/identity/authentication" url-scoped="https://developers.google.com/s/results/identity/authentication" > <form class="devsite-search-form" action="https://developers.google.com/s/results" method="GET"> <div class="devsite-search-container"> <button type="button" search-open class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Open search"></button> <div class="devsite-searchbox"> <input aria-activedescendant="" aria-autocomplete="list" aria-label="Search" aria-expanded="false" aria-haspopup="listbox" autocomplete="off" class="devsite-search-field devsite-search-query" name="q" placeholder="Search" role="combobox" type="text" value="" > <div class="devsite-search-image material-icons" aria-hidden="true"> </div> <div class="devsite-search-shortcut-icon-container" aria-hidden="true"> <kbd class="devsite-search-shortcut-icon">/</kbd> </div> </div> </div> </form> <button type="button" search-close class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Close search"></button> </devsite-search> </div> <devsite-language-selector> <ul role="presentation"> <li role="presentation"> <a role="menuitem" lang="en" >English</a> </li> <li role="presentation"> <a role="menuitem" lang="de" >Deutsch</a> </li> <li role="presentation"> <a role="menuitem" lang="es" >Español</a> </li> <li role="presentation"> <a role="menuitem" lang="es_419" >Español – América Latina</a> </li> <li role="presentation"> <a role="menuitem" lang="fr" >Français</a> </li> <li role="presentation"> <a role="menuitem" lang="id" >Indonesia</a> </li> <li role="presentation"> <a role="menuitem" lang="it" >Italiano</a> </li> <li role="presentation"> <a role="menuitem" lang="pl" >Polski</a> </li> <li role="presentation"> <a role="menuitem" lang="pt_br" >Português – Brasil</a> </li> <li role="presentation"> <a role="menuitem" lang="vi" >Tiếng Việt</a> </li> <li role="presentation"> <a role="menuitem" lang="tr" >Türkçe</a> </li> <li role="presentation"> <a role="menuitem" lang="ru" >Русский</a> </li> <li role="presentation"> <a role="menuitem" lang="he" >עברית</a> </li> <li role="presentation"> <a role="menuitem" lang="ar" >العربيّة</a> </li> <li role="presentation"> <a role="menuitem" lang="fa" >فارسی</a> </li> <li role="presentation"> <a role="menuitem" lang="hi" >हिंदी</a> </li> <li role="presentation"> <a role="menuitem" lang="bn" >বাংলা</a> </li> <li role="presentation"> <a role="menuitem" lang="th" >ภาษาไทย</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_cn" >中文 – 简体</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_tw" >中文 – 繁體</a> </li> <li role="presentation"> <a role="menuitem" lang="ja" >日本語</a> </li> <li role="presentation"> <a role="menuitem" lang="ko" >한국어</a> </li> </ul> </devsite-language-selector> <devsite-user enable-profiles fp-auth id="devsite-user"> <span class="button devsite-top-button" aria-hidden="true" visually-hidden>Sign in</span> </devsite-user> </div> </div> </div> <div class="devsite-collapsible-section "> <div class="devsite-header-background"> <div class="devsite-product-id-row" > <div class="devsite-product-description-row"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> <a href="https://developers.google.com/identity/authentication" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Lower Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Authentication" > Authentication </a> </li> </ul> <div class="devsite-product-description"> Sign users into your app using their Google accounts </div> </div> </div> <div class="devsite-doc-set-nav-row"> <devsite-tabs class="lower-tabs"> <nav class="devsite-tabs-wrapper" aria-label="Lower tabs"> <tab > <a href="https://developers.google.com/identity/android-credential-manager" track-metadata-eventdetail="https://developers.google.com/identity/android-credential-manager" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - credential manager for android" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential Manager for Android" track-name="credential manager for android" > Credential Manager for Android </a> </tab> <tab > <a href="https://developers.google.com/identity/gsi/web/guides/overview" track-metadata-eventdetail="https://developers.google.com/identity/gsi/web/guides/overview" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - sign in with google for web" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Sign In with Google for Web" track-name="sign in with google for web" > Sign In with Google for Web </a> </tab> <tab > <a href="https://developers.google.com/identity/sign-in/ios/start-integrating" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/ios/start-integrating" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - google sign-in for ios and macos" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Google Sign-In for iOS and macOS" track-name="google sign-in for ios and macos" > Google Sign-In for iOS and macOS </a> </tab> <tab > <a href="https://developers.google.com/identity/passkeys" track-metadata-eventdetail="https://developers.google.com/identity/passkeys" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - passkeys" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Passkeys" track-name="passkeys" > Passkeys </a> </tab> <tab > <a href="https://developers.google.com/identity/openid-connect/openid-connect" track-metadata-eventdetail="https://developers.google.com/identity/openid-connect/openid-connect" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - openid connect" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: OpenID Connect" track-name="openid connect" > OpenID Connect </a> </tab> </nav> </devsite-tabs> </div> </div> </div> </div> </devsite-header> <devsite-book-nav scrollbars hidden> <div class="devsite-book-nav-filter" hidden> <span class="filter-list-icon material-icons" aria-hidden="true"></span> <input type="text" placeholder="Filter" aria-label="Type to filter" role="searchbox"> <span class="filter-clear-button hidden" data-title="Clear filter" aria-label="Clear filter" role="button" tabindex="0"></span> </div> <nav class="devsite-book-nav devsite-nav nocontent" aria-label="Side menu"> <div class="devsite-mobile-header"> <button type="button" id="devsite-close-nav" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Close navigation" aria-label="Close navigation"> </button> <div class="devsite-product-name-wrapper"> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item devsite-has-google-wordmark"> <a href="https://developers.google.com/identity" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Upper Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Google Identity" > <svg class="devsite-google-wordmark" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 148 48"> <title>Google</title> <path class="devsite-google-wordmark-svg-path" d="M19.58,37.65c-9.87,0-18.17-8.04-18.17-17.91c0-9.87,8.3-17.91,18.17-17.91c5.46,0,9.35,2.14,12.27,4.94l-3.45,3.45c-2.1-1.97-4.93-3.49-8.82-3.49c-7.21,0-12.84,5.81-12.84,13.02c0,7.21,5.64,13.02,12.84,13.02c4.67,0,7.34-1.88,9.04-3.58c1.4-1.4,2.32-3.41,2.66-6.16H19.58v-4.89h16.47c0.18,0.87,0.26,1.92,0.26,3.06c0,3.67-1.01,8.21-4.24,11.44C28.93,35.9,24.91,37.65,19.58,37.65z M61.78,26.12c0,6.64-5.1,11.53-11.36,11.53s-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53S61.78,19.43,61.78,26.12z M56.8,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C53.84,33.11,56.8,30.22,56.8,26.12z M87.25,26.12c0,6.64-5.1,11.53-11.36,11.53c-6.26,0-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53C82.15,14.59,87.25,19.43,87.25,26.12zM82.28,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C79.32,33.11,82.28,30.22,82.28,26.12z M112.09,15.29v20.7c0,8.52-5.02,12.01-10.96,12.01c-5.59,0-8.95-3.76-10.22-6.81l4.41-1.83c0.79,1.88,2.71,4.1,5.81,4.1c3.8,0,6.16-2.36,6.16-6.77v-1.66h-0.18c-1.14,1.4-3.32,2.62-6.07,2.62c-5.76,0-11.05-5.02-11.05-11.49c0-6.51,5.28-11.57,11.05-11.57c2.75,0,4.93,1.22,6.07,2.58h0.18v-1.88H112.09z M107.64,26.16c0-4.06-2.71-7.03-6.16-7.03c-3.49,0-6.42,2.97-6.42,7.03c0,4.02,2.93,6.94,6.42,6.94C104.93,33.11,107.64,30.18,107.64,26.16z M120.97,3.06v33.89h-5.07V3.06H120.97z M140.89,29.92l3.93,2.62c-1.27,1.88-4.32,5.11-9.61,5.11c-6.55,0-11.28-5.07-11.28-11.53c0-6.86,4.77-11.53,10.71-11.53c5.98,0,8.91,4.76,9.87,7.34l0.52,1.31l-15.42,6.38c1.18,2.31,3.01,3.49,5.59,3.49C137.79,33.11,139.58,31.84,140.89,29.92zM128.79,25.77l10.31-4.28c-0.57-1.44-2.27-2.45-4.28-2.45C132.24,19.04,128.66,21.31,128.79,25.77z"/> </svg>Identity </a> </li> </ul> </span> </div> </div> <div class="devsite-book-nav-wrapper"> <div class="devsite-mobile-nav-top"> <ul class="devsite-nav-list"> <li class="devsite-nav-item"> <a href="/identity/authentication" class="devsite-nav-title gc-analytics-event devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authentication" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authentication </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" > <span class="devsite-nav-text" tooltip menu="Authentication"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Authentication"> </span> </span> </li> </ul> <ul class="devsite-nav-responsive-tabs"> <li class="devsite-nav-item"> <a href="/identity/android-credential-manager" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Credential Manager for Android" track-name="credential manager for android" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential Manager for Android" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential Manager for Android </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/gsi/web/guides/overview" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Sign In with Google for Web" track-name="sign in with google for web" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Sign In with Google for Web" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Sign In with Google for Web </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/ios/start-integrating" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Google Sign-In for iOS and macOS" track-name="google sign-in for ios and macos" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for iOS and macOS" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Sign-In for iOS and macOS </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/passkeys" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Passkeys" track-name="passkeys" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Passkeys" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Passkeys </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/openid-connect/openid-connect" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: OpenID Connect" track-name="openid connect" data-category="Site-Wide Custom Events" data-label="Responsive Tab: OpenID Connect" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > OpenID Connect </span> </a> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/authorization" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authorization" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authorization </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" > <span class="devsite-nav-text" tooltip menu="Authorization"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Authorization"> </span> </span> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/credential-management" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential management" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential management </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" > <span class="devsite-nav-text" tooltip menu="Credential management"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Credential management"> </span> </span> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/credential-verification" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential verification" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential verification </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" > <span class="devsite-nav-text" tooltip menu="Credential verification"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Credential verification"> </span> </span> </li> </ul> </li> </ul> </div> <div class="devsite-mobile-nav-bottom"> <ul class="devsite-nav-list" menu="Authentication" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Sign In with Google SDKs </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/android-credential-manager" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential Manager for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential Manager for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/gsi/web/guides/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Sign In with Google for Web (including One Tap)" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Sign In with Google for Web (including One Tap) </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/ios/start" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for iOS and macOS" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Sign-In for iOS and macOS </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Industry standards </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/passkeys" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Passkeys" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Passkeys </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/openid-connect/openid-connect" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: OpenID Connect" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > OpenID Connect </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Legacy Sign In </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/one-tap/android/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: One Tap sign-up/sign-in for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > One Tap sign-up/sign-in for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/android/legacy-start-integrating" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Sign-In for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/web/sign-in" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for Web" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Sign-In for Web </span> </a> </li> </ul> <ul class="devsite-nav-list" menu="Authorization" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Call Google APIs </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/android/authorize-access" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authorizing for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authorizing for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/oauth2/web/guides/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" 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class="devsite-nav-text" tooltip > Verify phone numbers on the web </span> </a> </li> </ul> </div> </div> </nav> </devsite-book-nav> <section id="gc-wrapper"> <main role="main" class="devsite-main-content" > <devsite-content> <article class="devsite-article"> <div class="devsite-article-meta nocontent" role="navigation"> <ul class="devsite-breadcrumb-list" aria-label="Breadcrumb"> <li class="devsite-breadcrumb-item "> <a href="https://developers.google.com/" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="" > Home </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developers.google.com/products" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" 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class="devsite-landing-row-item-description" > <div class="devsite-landing-row-item-body"> <h3 id="sign-in-with-google-sdks" data-text="Sign In with Google SDKs" class="hide-from-toc no-link" tabindex="0"> Sign In with Google SDKs </h3> <div class="devsite-landing-row-item-description-content"> <p>Users signed into Google on their device or browser get expedited authentication on your app or site.</p> <p>Returning users sign in automatically or with one tap or click.</p> <p>You even have the option to let users create new accounts with a single tap or click.</p> </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/identity/gsi/web/guides/display-google-one-tap" class="button button-white " >Sign In with Google for web (with One Tap)</a> <a href="https://developers.google.com/identity/android-credential-manager" class="button button-white " >Credential Manager for Android</a> <a href="https://developers.google.com/identity/sign-in/ios/start" 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<p>Open source and industry standard authentication.</p> <p>Passkeys are a safer and easier replacement for passwords.</p> <p>Google's OAuth 2.0 APIs conform to the OpenID Connect specification, are OpenID Certified, and can be used for both authentication and authorization.</p> <p>While we normally recommend the use of Sign In With Google for user authentication, in some situations you may want to call our APIs directly.</p> </div> <div class="devsite-landing-row-item-buttons"> <a href="https://developers.google.com/identity/passkeys" class="button button-white " >Passkeys</a> <a href="https://developers.google.com/identity/protocols/oauth2/openid-connect" class="button button-white " >OpenID Connect</a> </div> </div> </div> </div> <div class="devsite-landing-row-item" description-position="bottom" > <div class="devsite-landing-row-item-media "> <figure class="devsite-landing-row-item-custom-image" background="grey" > <div class="devsite-landing-row-item-custom-image-icon-wrapper"> 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