diff --git a/app/Http/Controllers/AuthController.php b/app/Http/Controllers/AuthController.php
index a3319809..c24fdc27 100644
--- a/app/Http/Controllers/AuthController.php
+++ b/app/Http/Controllers/AuthController.php
@@ -11,6 +11,7 @@ use App\Rules\Captcha;
 use Auth;
 use Cache;
 use Illuminate\Http\Request;
+use Laravel\Socialite\Facades\Socialite;
 use Mail;
 use Session;
 use URL;
@@ -301,4 +302,44 @@ class AuthController extends Controller
     {
         return json(['token' => Auth::guard('jwt')->refresh()]);
     }
+
+    public function oauthLogin($driver)
+    {
+        return Socialite::driver($driver)->redirect();
+    }
+
+    public function oauthCallback($driver)
+    {
+        $remoteUser = Socialite::driver($driver)->user();
+
+        $email = $remoteUser->email;
+        if (empty($email)) {
+            abort(500, 'Unsupported OAuth Server which does not provide email.');
+        }
+
+        $user = User::where('email', $email)->first();
+        if ($user) {
+            event(new Events\UserLoggedIn($user));
+
+            Auth::login($user);
+        } else {
+            $user = new User();
+            $user->email = $email;
+            $user->nickname = $remoteUser->nickname ?? $remoteUser->name ?? $email;
+            $user->score = option('user_initial_score');
+            $user->avatar = 0;
+            $user->password = '';
+            $user->ip = get_client_ip();
+            $user->permission = User::NORMAL;
+            $user->register_at = get_datetime_string();
+            $user->last_sign_at = get_datetime_string(time() - 86400);
+
+            $user->save();
+            event(new Events\UserRegistered($user));
+
+            Auth::login($user);
+        }
+
+        return redirect('/user');
+    }
 }
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index fa84f927..362e0487 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -23,6 +23,9 @@ class AppServiceProvider extends ServiceProvider
         $this->app->singleton('parsedown', \Parsedown::class);
         $this->app->singleton(\App\Services\Webpack::class);
         $this->app->singleton(\App\Services\Filter::class);
+        $this->app->singleton('oauth.providers', function () {
+            return new \Illuminate\Support\Collection();
+        });
     }
 
     /**
diff --git a/app/Providers/ViewServiceProvider.php b/app/Providers/ViewServiceProvider.php
index fe8bf7c8..782e344b 100644
--- a/app/Providers/ViewServiceProvider.php
+++ b/app/Providers/ViewServiceProvider.php
@@ -83,5 +83,9 @@ class ViewServiceProvider extends ServiceProvider
                 ],
             ]);
         });
+
+        View::composer('auth.oauth', function ($view) {
+            $view->with('providers', resolve('oauth.providers'));
+        });
     }
 }
diff --git a/composer.json b/composer.json
index 08f425fb..60e1cbcb 100644
--- a/composer.json
+++ b/composer.json
@@ -4,45 +4,46 @@
   "license": "MIT",
   "require": {
     "php": ">=7.2.0",
-    "ext-zip": "*",
+    "ext-ctype": "*",
+    "ext-gd": "*",
+    "ext-json": "*",
+    "ext-mbstring": "*",
     "ext-openssl": "*",
     "ext-pdo": "*",
-    "ext-mbstring": "*",
     "ext-tokenizer": "*",
-    "ext-gd": "*",
     "ext-xml": "*",
-    "ext-ctype": "*",
-    "ext-json": "*",
-    "predis/predis": "~1.0",
-    "doctrine/inflector": "1.1.0",
-    "laravel/framework": "6.*",
-    "nesbot/carbon": "^2.0",
+    "ext-zip": "*",
+    "composer/ca-bundle": "^1.2",
     "composer/semver": "^1.4",
+    "doctrine/dbal": "^2.9",
+    "doctrine/inflector": "1.1.0",
+    "facade/ignition": "^1.4",
     "gregwar/captcha": "1.*",
     "guzzlehttp/guzzle": "^6.3",
-    "doctrine/dbal": "^2.9",
-    "tymon/jwt-auth": "dev-develop",
+    "laravel/framework": "6.*",
     "laravel/passport": "^7.3",
-    "composer/ca-bundle": "^1.2",
-    "facade/ignition": "^1.4",
+    "nesbot/carbon": "^2.0",
+    "predis/predis": "~1.0",
+    "rcrowe/twigbridge": "^0.11.1",
+    "socialiteproviders/manager": "^3.4",
     "spatie/laravel-translation-loader": "^2.4",
     "symfony/process": "^4.4",
     "symfony/yaml": "^4.3",
     "twig/twig": "^2.11",
-    "rcrowe/twigbridge": "^0.11.1"
+    "tymon/jwt-auth": "dev-develop"
   },
   "require-dev": {
+    "barryvdh/laravel-debugbar": "^3.2",
+    "barryvdh/laravel-ide-helper": "^2.6",
+    "beyondcode/laravel-dump-server": "^1.2",
     "fzaninotto/faker": "~1.8",
+    "laravel/browser-kit-testing": "~5.0",
+    "laravel/tinker": "^1.0",
     "mockery/mockery": "^1.2.2",
     "phpdocumentor/reflection-docblock": "3.2.2",
     "phpunit/phpunit": "~8.0",
-    "laravel/browser-kit-testing": "~5.0",
-    "laravel/tinker": "^1.0",
-    "barryvdh/laravel-debugbar": "^3.2",
-    "beyondcode/laravel-dump-server": "^1.2",
-    "symfony/dom-crawler": "^4.3",
     "symfony/css-selector": "^4.3",
-    "barryvdh/laravel-ide-helper": "^2.6"
+    "symfony/dom-crawler": "^4.3"
   },
   "autoload": {
     "classmap": [
@@ -72,6 +73,13 @@
     "preferred-install": "dist",
     "sort-packages": true
   },
+  "extra": {
+    "laravel": {
+      "dont-discover": [
+        "laravel/socialite"
+      ]
+    }
+  },
   "repositories": {
     "packagist": {
       "type": "composer",
diff --git a/composer.lock b/composer.lock
index 0a7d296c..f9c31e52 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "5cc00172e30620b65fb629cecea98e5b",
+    "content-hash": "1d98f570b7b67b1ecd3b72dfcec58e7b",
     "packages": [
         {
             "name": "composer/ca-bundle",
@@ -1459,6 +1459,70 @@
             ],
             "time": "2019-10-08T16:45:24+00:00"
         },
+        {
+            "name": "laravel/socialite",
+            "version": "v4.3.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/laravel/socialite.git",
+                "reference": "2d670d5b100ef2dc72dc578126b2b97985791f52"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/laravel/socialite/zipball/2d670d5b100ef2dc72dc578126b2b97985791f52",
+                "reference": "2d670d5b100ef2dc72dc578126b2b97985791f52",
+                "shasum": ""
+            },
+            "require": {
+                "ext-json": "*",
+                "guzzlehttp/guzzle": "~6.0",
+                "illuminate/http": "~5.7.0|~5.8.0|^6.0|^7.0",
+                "illuminate/support": "~5.7.0|~5.8.0|^6.0|^7.0",
+                "league/oauth1-client": "~1.0",
+                "php": "^7.1.3"
+            },
+            "require-dev": {
+                "illuminate/contracts": "~5.7.0|~5.8.0|^6.0|^7.0",
+                "mockery/mockery": "^1.0",
+                "phpunit/phpunit": "^7.0|^8.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "4.0-dev"
+                },
+                "laravel": {
+                    "providers": [
+                        "Laravel\\Socialite\\SocialiteServiceProvider"
+                    ],
+                    "aliases": {
+                        "Socialite": "Laravel\\Socialite\\Facades\\Socialite"
+                    }
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Laravel\\Socialite\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Taylor Otwell",
+                    "email": "taylor@laravel.com"
+                }
+            ],
+            "description": "Laravel wrapper around OAuth 1 & OAuth 2 libraries.",
+            "homepage": "https://laravel.com",
+            "keywords": [
+                "laravel",
+                "oauth"
+            ],
+            "time": "2019-11-26T17:39:15+00:00"
+        },
         {
             "name": "lcobucci/jwt",
             "version": "3.3.1",
@@ -1648,6 +1712,69 @@
             ],
             "time": "2019-12-08T21:46:50+00:00"
         },
+        {
+            "name": "league/oauth1-client",
+            "version": "1.7.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/thephpleague/oauth1-client.git",
+                "reference": "fca5f160650cb74d23fc11aa570dd61f86dcf647"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/thephpleague/oauth1-client/zipball/fca5f160650cb74d23fc11aa570dd61f86dcf647",
+                "reference": "fca5f160650cb74d23fc11aa570dd61f86dcf647",
+                "shasum": ""
+            },
+            "require": {
+                "guzzlehttp/guzzle": "^6.0",
+                "php": ">=5.5.0"
+            },
+            "require-dev": {
+                "mockery/mockery": "^0.9",
+                "phpunit/phpunit": "^4.0",
+                "squizlabs/php_codesniffer": "^2.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "League\\OAuth1\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ben Corlett",
+                    "email": "bencorlett@me.com",
+                    "homepage": "http://www.webcomm.com.au",
+                    "role": "Developer"
+                }
+            ],
+            "description": "OAuth 1.0 Client Library",
+            "keywords": [
+                "Authentication",
+                "SSO",
+                "authorization",
+                "bitbucket",
+                "identity",
+                "idp",
+                "oauth",
+                "oauth1",
+                "single sign on",
+                "trello",
+                "tumblr",
+                "twitter"
+            ],
+            "time": "2016-08-17T00:36:58+00:00"
+        },
         {
             "name": "league/oauth2-server",
             "version": "7.4.0",
@@ -2047,16 +2174,16 @@
         },
         {
             "name": "phpoption/phpoption",
-            "version": "1.7.0",
+            "version": "1.7.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/schmittjoh/php-option.git",
-                "reference": "318ad673ba36e53e10ca510aec1c54b4f2a5f2ae"
+                "reference": "100a25207566930efd926cf205542946aa692e01"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/schmittjoh/php-option/zipball/318ad673ba36e53e10ca510aec1c54b4f2a5f2ae",
-                "reference": "318ad673ba36e53e10ca510aec1c54b4f2a5f2ae",
+                "url": "https://api.github.com/repos/schmittjoh/php-option/zipball/100a25207566930efd926cf205542946aa692e01",
+                "reference": "100a25207566930efd926cf205542946aa692e01",
                 "shasum": ""
             },
             "require": {
@@ -2098,7 +2225,7 @@
                 "php",
                 "type"
             ],
-            "time": "2019-12-13T00:10:22+00:00"
+            "time": "2019-12-14T13:46:39+00:00"
         },
         {
             "name": "phpseclib/phpseclib",
@@ -2755,6 +2882,63 @@
             ],
             "time": "2019-12-13T21:54:06+00:00"
         },
+        {
+            "name": "socialiteproviders/manager",
+            "version": "v3.4.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/SocialiteProviders/Manager.git",
+                "reference": "09903d33429f9f6c0da32c545c036a3e18964bbf"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/SocialiteProviders/Manager/zipball/09903d33429f9f6c0da32c545c036a3e18964bbf",
+                "reference": "09903d33429f9f6c0da32c545c036a3e18964bbf",
+                "shasum": ""
+            },
+            "require": {
+                "illuminate/support": "~5.4|~5.7.0|~5.8.0|^6.0",
+                "laravel/socialite": "~3.0|~4.0",
+                "php": "^5.6 || ^7.0"
+            },
+            "require-dev": {
+                "mockery/mockery": "^0.9.4",
+                "phpunit/phpunit": "^5.0"
+            },
+            "type": "library",
+            "extra": {
+                "laravel": {
+                    "providers": [
+                        "SocialiteProviders\\Manager\\ServiceProvider"
+                    ]
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "SocialiteProviders\\Manager\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Andy Wendt",
+                    "email": "andy@awendt.com"
+                },
+                {
+                    "name": "Anton Komarev",
+                    "email": "a.komarev@cybercog.su"
+                },
+                {
+                    "name": "Miguel Piedrafita",
+                    "email": "soy@miguelpiedrafita.com"
+                }
+            ],
+            "description": "Easily add new or override built-in providers in Laravel Socialite.",
+            "time": "2019-09-25T06:06:35+00:00"
+        },
         {
             "name": "spatie/laravel-translation-loader",
             "version": "2.4.0",
@@ -7557,15 +7741,15 @@
     "prefer-lowest": false,
     "platform": {
         "php": ">=7.2.0",
-        "ext-zip": "*",
+        "ext-ctype": "*",
+        "ext-gd": "*",
+        "ext-json": "*",
+        "ext-mbstring": "*",
         "ext-openssl": "*",
         "ext-pdo": "*",
-        "ext-mbstring": "*",
         "ext-tokenizer": "*",
-        "ext-gd": "*",
         "ext-xml": "*",
-        "ext-ctype": "*",
-        "ext-json": "*"
+        "ext-zip": "*"
     },
     "platform-dev": []
 }
diff --git a/resources/lang/en/general.yml b/resources/lang/en/general.yml
index 3268b38b..96fee1af 100644
--- a/resources/lang/en/general.yml
+++ b/resources/lang/en/general.yml
@@ -42,6 +42,7 @@ rotation: Rotation
 pause: Pause
 reset: Reset
 
+more: More
 submit: Submit
 cancel: Cancel
 yes: Yes
diff --git a/resources/misc/changelogs/en/5.0.0.md b/resources/misc/changelogs/en/5.0.0.md
index 1067f4e5..eca06487 100644
--- a/resources/misc/changelogs/en/5.0.0.md
+++ b/resources/misc/changelogs/en/5.0.0.md
@@ -15,6 +15,7 @@
 - Added badge "STAFF" for administrators.
 - Added badges at texture detail page.
 - Added FAQ link at error page.
+- Added login with 3rd-party services.
 
 ## Tweaked
 
diff --git a/resources/misc/changelogs/zh_CN/5.0.0.md b/resources/misc/changelogs/zh_CN/5.0.0.md
index 8b2d69a3..f7874557 100644
--- a/resources/misc/changelogs/zh_CN/5.0.0.md
+++ b/resources/misc/changelogs/zh_CN/5.0.0.md
@@ -15,6 +15,7 @@
 - 增加管理员专有的「STAFF」badge
 - 在材质详情页中显示上传者的 badge
 - 在错误页面增加指向 FAQ 页面的链接
+- 第三方登录
 
 ## 调整
 
diff --git a/resources/views/auth/login.twig b/resources/views/auth/login.twig
index 37cabce5..b15a9502 100644
--- a/resources/views/auth/login.twig
+++ b/resources/views/auth/login.twig
@@ -11,7 +11,10 @@
   {% endif %}
   <form></form>
   <br>
-  <a href="{{ url('auth/register') }}">{{ trans('auth.register-link') }}</a>
+  {{ include('auth.oauth') }}
+  <div>
+    <a href="{{ url('auth/register') }}">{{ trans('auth.register-link') }}</a>
+  </div>
 {% endblock %}
 
 {% block before_foot %}
diff --git a/resources/views/auth/oauth.twig b/resources/views/auth/oauth.twig
new file mode 100644
index 00000000..9efe51ae
--- /dev/null
+++ b/resources/views/auth/oauth.twig
@@ -0,0 +1,9 @@
+<div class="mb-3 text-center">
+  <div class="mb-1">- {{ trans('general.more') }} -</div>
+  {% for name, provider in providers %}
+    <a href="{{ url("/auth/login/#{name}") }}" class="btn btn-block bg-light border-secondary">
+      <img src="{{ url("/app/brand-icons/#{provider.icon}.svg") }}" width="20">
+      {{ provider.displayName }}
+    </a>
+  {% endfor %}
+</div>
diff --git a/resources/views/auth/register.twig b/resources/views/auth/register.twig
index 40a08315..0e414cef 100644
--- a/resources/views/auth/register.twig
+++ b/resources/views/auth/register.twig
@@ -7,6 +7,7 @@
     {{ trans('auth.register.message', {sitename: site_name}) }}
   </p>
   <form></form>
+  {{ include('auth.oauth') }}
 {% endblock %}
 
 {% block before_foot %}
diff --git a/routes/web.php b/routes/web.php
index 7ac356b0..838861a4 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -27,6 +27,9 @@ Route::group(['prefix' => 'auth'], function () {
         Route::get('/register', 'AuthController@register');
         Route::get('/forgot', 'AuthController@forgot');
         Route::get('/reset/{uid}', 'AuthController@reset')->name('auth.reset')->middleware('signed');
+
+        Route::get('/login/{driver}', 'AuthController@oauthLogin');
+        Route::get('/login/{driver}/callback', 'AuthController@oauthCallback');
     });
 
     Route::any('/logout', 'AuthController@logout');
diff --git a/scripts/build.ps1 b/scripts/build.ps1
index ffde505a..5e280bbe 100644
--- a/scripts/build.ps1
+++ b/scripts/build.ps1
@@ -13,6 +13,9 @@ if (Test-Path ./public/app) {
 # Run webpack
 yarn build
 
+New-Item -ItemType Directory ./public/app/brand-icons
+Copy-Item -Path ./node_modules/@fortawesome/fontawesome-free/svgs/brands/*.svg -Destination ./public/app/brand-icons
+
 if ($Simple) {
     exit
 }
diff --git a/tests/HttpTest/ControllersTest/AuthControllerTest.php b/tests/HttpTest/ControllersTest/AuthControllerTest.php
index add6e0a1..1bab50ec 100644
--- a/tests/HttpTest/ControllersTest/AuthControllerTest.php
+++ b/tests/HttpTest/ControllersTest/AuthControllerTest.php
@@ -13,6 +13,8 @@ use Illuminate\Foundation\Testing\DatabaseTransactions;
 use Illuminate\Support\Facades\Mail;
 use Illuminate\Support\Facades\URL;
 use Illuminate\Support\Str;
+use Laravel\Socialite\AbstractUser;
+use Laravel\Socialite\Facades\Socialite;
 
 class AuthControllerTest extends TestCase
 {
@@ -606,4 +608,80 @@ class AuthControllerTest extends TestCase
         ])->decodeResponseJson('token');
         $this->assertTrue(is_string($token));
     }
+
+    public function testOAuthLogin()
+    {
+        Socialite::shouldReceive('driver')
+            ->with('github')
+            ->once()
+            ->andReturn(new class() {
+                public function redirect()
+                {
+                    return redirect('/');
+                }
+            });
+
+        $this->get('/auth/login/github')->assertRedirect();
+    }
+
+    public function testOAuthCallback()
+    {
+        Event::fake();
+
+        Socialite::shouldReceive('driver')
+            ->with('github')
+            ->times(3)
+            ->andReturn(
+                new class() {
+                    public function user()
+                    {
+                        return new class() extends AbstractUser {
+                        };
+                    }
+                },
+                new class() {
+                    public function user()
+                    {
+                        return new class() extends AbstractUser {
+                            public $email = 'a@b.c';
+
+                            public $nickname = 'abc';
+                        };
+                    }
+                },
+                new class() {
+                    public function user()
+                    {
+                        return new class() extends AbstractUser {
+                            public $email = 'a@b.c';
+
+                            public $nickname = 'abc';
+                        };
+                    }
+                }
+            );
+
+        $this->get('/auth/login/github/callback')
+            ->assertStatus(500)
+            ->assertSee('Unsupported');
+
+        $this->get('/auth/login/github/callback')->assertRedirect('/user');
+        $this->assertDatabaseHas('users', [
+            'email' => 'a@b.c',
+            'nickname' => 'abc',
+            'score' => option('user_initial_score'),
+            'avatar' => 0,
+            'ip' => '127.0.0.1',
+            'permission' => User::NORMAL,
+        ]);
+        Event::assertDispatched(Events\UserRegistered::class);
+        $this->assertAuthenticated();
+
+        auth()->logout();
+        $this->assertGuest();
+
+        $this->get('/auth/login/github/callback')->assertRedirect('/user');
+        Event::assertDispatched(Events\UserLoggedIn::class);
+        $this->assertAuthenticated();
+    }
 }