diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 095f8dc..01bd3c0 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -100,6 +100,31 @@ parameters:
 			count: 1
 			path: src/Command/CreateServiceWorkerCommand.php
 
+		-
+			message: "#^Class SpomkyLabs\\\\PwaBundle\\\\Dto\\\\BackgroundSync has an uninitialized property \\$forceSyncFallback\\. Give it default value or assign it in the constructor\\.$#"
+			count: 1
+			path: src/Dto/BackgroundSync.php
+
+		-
+			message: "#^Class SpomkyLabs\\\\PwaBundle\\\\Dto\\\\BackgroundSync has an uninitialized property \\$maxRetentionTime\\. Give it default value or assign it in the constructor\\.$#"
+			count: 1
+			path: src/Dto/BackgroundSync.php
+
+		-
+			message: "#^Class SpomkyLabs\\\\PwaBundle\\\\Dto\\\\BackgroundSync has an uninitialized property \\$method\\. Give it default value or assign it in the constructor\\.$#"
+			count: 1
+			path: src/Dto/BackgroundSync.php
+
+		-
+			message: "#^Class SpomkyLabs\\\\PwaBundle\\\\Dto\\\\BackgroundSync has an uninitialized property \\$queueName\\. Give it default value or assign it in the constructor\\.$#"
+			count: 1
+			path: src/Dto/BackgroundSync.php
+
+		-
+			message: "#^Class SpomkyLabs\\\\PwaBundle\\\\Dto\\\\BackgroundSync has an uninitialized property \\$regex\\. Give it default value or assign it in the constructor\\.$#"
+			count: 1
+			path: src/Dto/BackgroundSync.php
+
 		-
 			message: "#^Class SpomkyLabs\\\\PwaBundle\\\\Dto\\\\File has an uninitialized property \\$accept\\. Give it default value or assign it in the constructor\\.$#"
 			count: 1
@@ -655,6 +680,11 @@ parameters:
 			count: 1
 			path: src/Service/ServiceWorkerCompiler.php
 
+		-
+			message: "#^Strict comparison using \\!\\=\\= between bool\\|int and null will always evaluate to true\\.$#"
+			count: 1
+			path: src/Service/ServiceWorkerCompiler.php
+
 		-
 			message: "#^Cannot access offset 'public_prefix' on mixed\\.$#"
 			count: 1
diff --git a/src/Dto/BackgroundSync.php b/src/Dto/BackgroundSync.php
new file mode 100644
index 0000000..7d34b71
--- /dev/null
+++ b/src/Dto/BackgroundSync.php
@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SpomkyLabs\PwaBundle\Dto;
+
+use Symfony\Component\Serializer\Attribute\SerializedName;
+
+final class BackgroundSync
+{
+    #[SerializedName('queue_name')]
+    public string $queueName;
+
+    public string $regex;
+
+    public string $method;
+
+    #[SerializedName('max_retention_time')]
+    public int $maxRetentionTime;
+
+    #[SerializedName('force_sync_callback')]
+    public bool $forceSyncFallback;
+}
diff --git a/src/Dto/Workbox.php b/src/Dto/Workbox.php
index 443e199..4b4a132 100644
--- a/src/Dto/Workbox.php
+++ b/src/Dto/Workbox.php
@@ -39,6 +39,12 @@ final class Workbox
     #[SerializedName('offline_fallback')]
     public OfflineFallback $offlineFallback;
 
+    /**
+     * @var array<BackgroundSync>
+     */
+    #[SerializedName('background_sync')]
+    public array $backgroundSync = [];
+
     #[SerializedName('clear_cache')]
     public bool $clearCache = true;
 }
diff --git a/src/Resources/config/definition/service_worker.php b/src/Resources/config/definition/service_worker.php
index 1b1e614..abbb1fa 100644
--- a/src/Resources/config/definition/service_worker.php
+++ b/src/Resources/config/definition/service_worker.php
@@ -32,6 +32,16 @@
                     ->defaultFalse()
                     ->info('Whether to skip waiting for the service worker to be activated.')
                 ->end()
+                ->scalarNode('scope')
+                    ->cannotBeEmpty()
+                    ->defaultValue('/')
+                    ->info('The scope of the service worker.')
+                    ->example('/app/')
+                ->end()
+                ->booleanNode('use_cache')
+                    ->defaultTrue()
+                    ->info('Whether the service worker should use the cache.')
+                ->end()
                 ->arrayNode('workbox')
                     ->info('The configuration of the workbox.')
                     ->canBeDisabled()
@@ -310,6 +320,39 @@
                                 ->end()
                             ->end()
                         ->end()
+                        ->arrayNode('background_sync')
+                            ->treatNullLike([])
+                            ->treatFalseLike([])
+                            ->treatTrueLike([])
+                            ->info('The background sync configuration.')
+                            ->arrayPrototype()
+                                ->children()
+                                    ->scalarNode('queue_name')
+                                        ->isRequired()
+                                        ->info('The name of the queue.')
+                                        ->example(['api-requests', 'image-uploads'])
+                                    ->end()
+                                    ->scalarNode('regex')
+                                        ->isRequired()
+                                        ->info('The regex to match the URLs.')
+                                        ->example(['/\/api\//'])
+                                    ->end()
+                                    ->scalarNode('method')
+                                        ->defaultValue('POST')
+                                        ->info('The HTTP method.')
+                                        ->example(['POST', 'PUT', 'PATCH', 'DELETE'])
+                                    ->end()
+                                    ->integerNode('max_retention_time')
+                                        ->defaultValue(60 * 24 * 5)
+                                        ->info('The maximum retention time in minutes.')
+                                    ->end()
+                                    ->booleanNode('force_sync_callback')
+                                        ->defaultFalse()
+                                        ->info('Whether to force the sync callback.')
+                                    ->end()
+                                ->end()
+                            ->end()
+                        ->end()
                         ->scalarNode('image_cache_name')
                             ->defaultValue('images')
                             ->info('The name of the image cache.')
@@ -464,16 +507,6 @@
                     ->end()
                 ->end()
             ->end()
-            ->scalarNode('scope')
-                ->cannotBeEmpty()
-                ->defaultValue('/')
-                ->info('The scope of the service worker.')
-                ->example('/app/')
-            ->end()
-            ->booleanNode('use_cache')
-                ->defaultTrue()
-                ->info('Whether the service worker should use the cache.')
-            ->end()
         ->end()
     ->end()
 ->end()
diff --git a/src/Service/ServiceWorkerCompiler.php b/src/Service/ServiceWorkerCompiler.php
index 070446b..f0e0bd5 100644
--- a/src/Service/ServiceWorkerCompiler.php
+++ b/src/Service/ServiceWorkerCompiler.php
@@ -102,6 +102,7 @@ private function processWorkbox(Workbox $workbox, string $body): string
         $body = $this->processImageCacheRule($workbox, $body);
         $body = $this->processCacheRootFilesRule($workbox, $body);
         $body = $this->processCacheGoogleFontsRule($workbox, $body);
+        $body = $this->processBackgroundSyncRule($workbox, $body);
 
         return $this->processOfflineFallback($workbox, $body);
     }
@@ -316,6 +317,32 @@ private function processCacheGoogleFontsRule(Workbox $workbox, string $body): st
         return $body . PHP_EOL . PHP_EOL . trim($declaration);
     }
 
+    private function processBackgroundSyncRule(Workbox $workbox, string $body): string
+    {
+        if ($workbox->backgroundSync === []) {
+            return $body;
+        }
+
+        $declaration = '';
+        foreach ($workbox->backgroundSync as $sync) {
+            $options = [
+                'maxRetentionTime' => $sync->maxRetentionTime,
+                'forceSyncCallback' => $sync->forceSyncFallback,
+            ];
+            $options = array_filter($options, static fn (mixed $v): bool => $v !== null);
+            $options = count($options) === 0 ? '' : $this->serializer->serialize($options, 'json', $this->jsonOptions);
+            $declaration .= <<<BACKGROUND_SYNC_RULE_STRATEGY
+workbox.routing.registerRoute(
+    '{$sync->regex}',
+    new workbox.strategies.NetworkOnly({plugins: [new workbox.backgroundSync.BackgroundSyncPlugin('{$sync->queueName}',{$options})] }),
+    '{$sync->method}'
+);
+BACKGROUND_SYNC_RULE_STRATEGY;
+        }
+
+        return $body . PHP_EOL . PHP_EOL . trim($declaration);
+    }
+
     private function processOfflineFallback(Workbox $workbox, string $body): string
     {
         if ($workbox->offlineFallback->enabled === false) {