diff --git a/public/index.php b/public/index.php
index ba5c11a..ccb5315 100644
--- a/public/index.php
+++ b/public/index.php
@@ -363,14 +363,22 @@ $app->get('/api/backup/all', function (Request $request, Response $response) use
     try {
         $pdo = $container->get('db');
         $backup = new \App\BackupService($_SESSION['db_user'], $_SESSION['db_pass']);
-        $data = $backup->dumpAllDatabases($pdo);
+        $tempFile = $backup->dumpAllDatabases($pdo);
         $filename = 'backup_all_' . date('Y-m-d_H-i-s') . '.sql.gz';
 
-        $response->getBody()->write($data);
+        $stream = fopen($tempFile, 'rb');
+        $filesize = filesize($tempFile);
+
+        // Удаляем временный файл после отправки
+        register_shutdown_function(function() use ($tempFile) {
+            if (file_exists($tempFile)) unlink($tempFile);
+        });
+
         return $response
             ->withHeader('Content-Type', 'application/gzip')
             ->withHeader('Content-Disposition', 'attachment; filename="' . $filename . '"')
-            ->withHeader('Content-Length', strlen($data));
+            ->withHeader('Content-Length', $filesize)
+            ->withBody(new \Slim\Psr7\Stream($stream));
     } catch (\Exception $e) {
         $response->getBody()->write(json_encode(['error' => $e->getMessage()]));
         return $response->withHeader('Content-Type', 'application/json')->withStatus(500);
@@ -382,14 +390,21 @@ $app->get('/api/backup/database/{name}', function (Request $request, Response $r
     try {
         $database = $args['name'];
         $backup = new \App\BackupService($_SESSION['db_user'], $_SESSION['db_pass']);
-        $data = $backup->dumpDatabase($database);
+        $tempFile = $backup->dumpDatabase($database);
         $filename = $database . '_' . date('Y-m-d_H-i-s') . '.sql.gz';
 
-        $response->getBody()->write($data);
+        $stream = fopen($tempFile, 'rb');
+        $filesize = filesize($tempFile);
+
+        register_shutdown_function(function() use ($tempFile) {
+            if (file_exists($tempFile)) unlink($tempFile);
+        });
+
         return $response
             ->withHeader('Content-Type', 'application/gzip')
             ->withHeader('Content-Disposition', 'attachment; filename="' . $filename . '"')
-            ->withHeader('Content-Length', strlen($data));
+            ->withHeader('Content-Length', $filesize)
+            ->withBody(new \Slim\Psr7\Stream($stream));
     } catch (\Exception $e) {
         $response->getBody()->write(json_encode(['error' => $e->getMessage()]));
         return $response->withHeader('Content-Type', 'application/json')->withStatus(500);
diff --git a/src/BackupService.php b/src/BackupService.php
index 39e1a3f..62f7482 100644
--- a/src/BackupService.php
+++ b/src/BackupService.php
@@ -23,30 +23,36 @@ class BackupService
     }
 
     /**
-     * Создать дамп и вернуть содержимое (gzip сжатое)
+     * Создать дамп и вернуть путь к временному файлу
      */
     public function dumpDatabase(string $database): string
     {
+        $tempFile = sys_get_temp_dir() . '/backup_' . $database . '_' . uniqid() . '.sql.gz';
+
         $cmd = sprintf(
-            'mysqldump --host=%s --port=%s --user=%s --password=%s --single-transaction --routines --triggers %s 2>/dev/null | gzip',
+            'mysqldump --host=%s --port=%s --user=%s --password=%s --single-transaction --routines --triggers %s 2>&1 | gzip > %s',
             escapeshellarg($this->host),
             escapeshellarg($this->port),
             escapeshellarg($this->user),
             escapeshellarg($this->pass),
-            escapeshellarg($database)
+            escapeshellarg($database),
+            escapeshellarg($tempFile)
         );
 
-        $output = shell_exec($cmd);
+        exec($cmd, $output, $returnCode);
 
-        if ($output === null || $output === '') {
-            throw new \RuntimeException("Failed to create dump for database: $database");
+        if ($returnCode !== 0 || !file_exists($tempFile) || filesize($tempFile) < 100) {
+            if (file_exists($tempFile)) {
+                unlink($tempFile);
+            }
+            throw new \RuntimeException("mysqldump failed: " . implode("\n", $output));
         }
 
-        return $output;
+        return $tempFile;
     }
 
     /**
-     * Создать дамп всех баз данных (один файл)
+     * Создать дамп всех баз данных
      */
     public function dumpAllDatabases(\PDO $pdo): string
     {
@@ -56,23 +62,28 @@ class BackupService
             throw new \RuntimeException("No databases available for backup");
         }
 
+        $tempFile = sys_get_temp_dir() . '/backup_all_' . uniqid() . '.sql.gz';
         $dbList = implode(' ', array_map('escapeshellarg', $databases));
 
         $cmd = sprintf(
-            'mysqldump --host=%s --port=%s --user=%s --password=%s --single-transaction --routines --triggers --databases %s 2>/dev/null | gzip',
+            'mysqldump --host=%s --port=%s --user=%s --password=%s --single-transaction --routines --triggers --databases %s 2>&1 | gzip > %s',
             escapeshellarg($this->host),
             escapeshellarg($this->port),
             escapeshellarg($this->user),
             escapeshellarg($this->pass),
-            $dbList
+            $dbList,
+            escapeshellarg($tempFile)
         );
 
-        $output = shell_exec($cmd);
+        exec($cmd, $output, $returnCode);
 
-        if ($output === null || $output === '') {
-            throw new \RuntimeException("Failed to create dump");
+        if ($returnCode !== 0 || !file_exists($tempFile) || filesize($tempFile) < 100) {
+            if (file_exists($tempFile)) {
+                unlink($tempFile);
+            }
+            throw new \RuntimeException("mysqldump failed: " . implode("\n", $output));
         }
 
-        return $output;
+        return $tempFile;
     }
 }