diff --git a/php/public/index.php b/php/public/index.php
index 2bc8091b..b113d6b0 100644
--- a/php/public/index.php
+++ b/php/public/index.php
@@ -70,6 +70,7 @@ $app->post('/api/docker/backup-check-repair', AIO\Controller\DockerController::c
 $app->post('/api/docker/backup-test', AIO\Controller\DockerController::class . ':StartBackupContainerTest');
 $app->post('/api/docker/restore', AIO\Controller\DockerController::class . ':StartBackupContainerRestore');
 $app->post('/api/docker/stop', AIO\Controller\DockerController::class . ':StopContainer');
+$app->post('/api/docker/prune', AIO\Controller\DockerController::class . ':SystemPrune');
 $app->get('/api/docker/logs', AIO\Controller\DockerController::class . ':GetLogs');
 $app->post('/api/auth/login', AIO\Controller\LoginController::class . ':TryLogin');
 $app->get('/api/auth/getlogin', AIO\Controller\LoginController::class . ':GetTryLogin');
diff --git a/php/src/Controller/DockerController.php b/php/src/Controller/DockerController.php
index 5942e093..835ed6d5 100644
--- a/php/src/Controller/DockerController.php
+++ b/php/src/Controller/DockerController.php
@@ -328,6 +328,22 @@ readonly class DockerController {
         return $nonbufResp;
     }
 
+    public function SystemPrune(Request $request, Response $response, array $args) : Response {
+        // Get streaming response start and closure
+        $nonbufResp = $this->startStreamingResponse($response);
+
+        $body = $nonbufResp->getBody();
+        $addToStreamingResponseBody = function (string $message) use ($body) : void {
+            $body->write("<div>$message</div>");
+        };
+
+        $this->dockerActionManager->SystemPrune($addToStreamingResponseBody);
+
+        // End streaming response
+        $this->finalizeStreamingResponse($nonbufResp);
+        return $nonbufResp;
+    }
+
     public function stopTopContainer() : void {
         $id = self::TOP_CONTAINER;
         $this->PerformRecursiveContainerStop($id);
diff --git a/php/src/Docker/DockerActionManager.php b/php/src/Docker/DockerActionManager.php
index d5afef81..0e19bcd8 100644
--- a/php/src/Docker/DockerActionManager.php
+++ b/php/src/Docker/DockerActionManager.php
@@ -997,4 +997,71 @@ readonly class DockerActionManager {
             return $this->dockerHubManager->GetLatestDigestOfTag($imageName, $tag);
         }
     }
+
+    public function SystemPrune(?\Closure $addToStreamingResponseBody = null): void {
+        $endpoints = [
+            // Remove stopped containers
+            'containers/prune',
+            // Remove unused images
+            'images/prune',
+            // Remove unused volumes
+            'volumes/prune',
+            // Remove unused networks
+            'networks/prune',
+            // Prune build cache
+            'build/prune',
+        ];
+
+        foreach ($endpoints as $endpoint) {
+            // Special-case images prune to include the dangling filter as requested
+            if ($endpoint === 'images/prune') {
+                $filters = json_encode(['dangling' => ['false']]);
+                $url = $this->BuildApiUrl($endpoint . '?filters=' . urlencode((string) $filters));
+            } else {
+                $url = $this->BuildApiUrl($endpoint);
+            }
+
+            if ($addToStreamingResponseBody !== null) {
+                $addToStreamingResponseBody("Running $endpoint...");
+            }
+
+            try {
+                $response = $this->guzzleClient->post($url);
+                if ($addToStreamingResponseBody !== null) {
+                    $data = json_decode((string)$response->getBody(), true);
+                    $deleted = 0;
+                    foreach (['ContainersDeleted', 'ImagesDeleted', 'VolumesDeleted', 'NetworksDeleted', 'CachesDeleted'] as $key) {
+                        if (isset($data[$key]) && is_array($data[$key])) {
+                            $deleted += count($data[$key]);
+                        }
+                    }
+                    $reclaimed = $data['SpaceReclaimed'] ?? 0;
+                    $parts = [];
+                    if ($deleted > 0) {
+                        $parts[] = "$deleted item(s) deleted";
+                    }
+                    if ($reclaimed > 0) {
+                        $i = (int)floor(log($reclaimed, 1024));
+                        $parts[] = 'Space reclaimed: ' . (string)round($reclaimed / (1024 ** $i), 2) . ' ' . ['B','KB','MB','GB'][$i];
+                    }
+                    $addToStreamingResponseBody(!empty($parts) ? implode('. ', $parts) . '.' : 'Nothing to prune.');
+                }
+            } catch (RequestException $e) {
+                error_log(sprintf('Docker prune (%s) failed: %s', $endpoint, $e->getMessage()));
+                if ($addToStreamingResponseBody !== null) {
+                    $addToStreamingResponseBody('Error: ' . $e->getMessage());
+                }
+                // continue with next prune step
+            }
+        }
+
+        if ($addToStreamingResponseBody !== null) {
+            $addToStreamingResponseBody("Docker system prune completed.");
+            sleep(1);
+
+            // We automatically reload after 10s so that the output can be read or copied if necessary
+            $addToStreamingResponseBody("Automatically reloading the page after 10s.");
+            sleep(10);
+        }
+    }
 }
diff --git a/php/templates/containers.twig b/php/templates/containers.twig
index 17405256..207cfceb 100644
--- a/php/templates/containers.twig
+++ b/php/templates/containers.twig
@@ -582,6 +582,18 @@
 
                         {% if is_backup_container_running == false %}
                             {% if isApacheStarting == false %}
+                                {% if isAnyRunning == true %}
+                                    <h2>Docker System Prune</h2>
+                                    <details>
+                                        <summary>Click here to reveal a button to prune the docker system.</summary>
+                                        <p>By clicking the button below you can run "docker system prune -a". This will remove unused images, containers, networks, volumes and build cache. It will not delete data of running containers.</p>
+                                        <form method="POST" action="api/docker/prune" target="overlay-log">
+                                            <input type="hidden" name="{{csrf.keys.name}}" value="{{csrf.name}}">
+                                            <input type="hidden" name="{{csrf.keys.value}}" value="{{csrf.value}}">
+                                            <input type="submit" value="Prune docker system" data-confirm="Run docker system prune -a? This will remove unused images, containers, networks, volumes and build cache. It will not delete data of running containers. Continue?" />
+                                        </form>
+                                    </details>
+                                {% endif %}
                                 <h2>AIO passphrase change</h2>
                                 <details>
                                     <summary>Click here to change your AIO passphrase</summary>