diff --git a/docs/reference/tasks/json_stream_reader_task.md b/docs/reference/tasks/json_stream_reader_task.md
index e48da640..77fc2329 100644
--- a/docs/reference/tasks/json_stream_reader_task.md
+++ b/docs/reference/tasks/json_stream_reader_task.md
@@ -23,7 +23,11 @@ Underlying method are [SplFileObject::fgets](https://www.php.net/manual/fr/splfi
 Options
 -------
 
-none
+| Code                    | Type            | Required | Default                                                                               | Description                                                                                                                                                                                 |
+|-------------------------|-----------------|:--------:|---------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `spl_file_object_flags` | `array`, `null` |          | `\SplFileObject::DROP_NEW_LINE \SplFileObject::READ_AHEAD \SplFileObject::SKIP_EMPTY` | Flags to pass to `SplFileObject` constructor, can be empty.<br/>See [PHP documentation](https://www.php.net/manual/en/splfileobject.construct.php) for more information on available flags. |
+| `json_flags`            | `array`, `null` |          | `\JSON_THROW_ON_ERROR`                                                                | Flags to pass to `json_encode` function, can be empty.<br/>See [PHP documentation](https://www.php.net/manual/en/function.json-encode.php) for more information on available flags.         |
+
 
 Example
 -------
@@ -38,6 +42,10 @@ entry:
       file_path: '%kernel.project_dir%/var/data/json_stream_reader.json'
 read:
   service: '@CleverAge\ProcessBundle\Task\File\JsonStream\JsonStreamReaderTask'
+  options:
+    spl_file_object_flags: []
+    json_flags:
+      - !php/const JSON_ERROR_NONE
 ```
 
 
diff --git a/docs/reference/tasks/json_stream_writer_task.md b/docs/reference/tasks/json_stream_writer_task.md
index 79fd2e39..9b4a2302 100644
--- a/docs/reference/tasks/json_stream_writer_task.md
+++ b/docs/reference/tasks/json_stream_writer_task.md
@@ -23,9 +23,11 @@ Possible outputs
 Options
 -------
 
-| Code        | Type     | Required | Default | Description                                                                                                                                                                                       |
-|-------------|----------|:--------:|---------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `file_path` | `string` |  **X**   |         | Path of the file to write to (relative to symfony root or absolute).<br/>It can also take placeholders (`{date}`, `{date_time}`, `{timestamp}` `{unique_token}`) to insert data into the filename |
+| Code                    | Type            | Required | Default                                                                               | Description                                                                                                                                                                                       |
+|-------------------------|-----------------|:--------:|---------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `file_path`             | `string`        |  **X**   |                                                                                       | Path of the file to write to (relative to symfony root or absolute).<br/>It can also take placeholders (`{date}`, `{date_time}`, `{timestamp}` `{unique_token}`) to insert data into the filename |
+| `spl_file_object_flags` | `array`, `null` |          | `\SplFileObject::DROP_NEW_LINE \SplFileObject::READ_AHEAD \SplFileObject::SKIP_EMPTY` | Flags to pass to `SplFileObject` constructor, can be empty.<br/>See [PHP documentation](https://www.php.net/manual/en/splfileobject.construct.php) for more information on available flags.       |
+| `json_flags`            | `array`, `null` |          | `\JSON_THROW_ON_ERROR`                                                                | Flags to pass to `json_encode` function, can be empty.<br/>See [PHP documentation](https://www.php.net/manual/en/function.json-encode.php) for more information on available flags.               |
 
 Example
 ----------------
@@ -50,4 +52,8 @@ write:
   service: '@CleverAge\ProcessBundle\Task\File\JsonStream\JsonStreamWriterTask'
   options:
     file_path: '%kernel.project_dir%/var/data/json_stream_writer_{date_time}.csv'
+    spl_file_object_flags: []
+    json_flags:
+      - !php/const JSON_PRETTY_PRINT
+      - !php/const JSON_UNESCAPED_SLASHES
 ```
diff --git a/src/Filesystem/JsonStreamFile.php b/src/Filesystem/JsonStreamFile.php
index 6d4873b3..fc76dc62 100644
--- a/src/Filesystem/JsonStreamFile.php
+++ b/src/Filesystem/JsonStreamFile.php
@@ -20,16 +20,30 @@ class JsonStreamFile implements FileStreamInterface, WritableFileInterface
 {
     protected \SplFileObject $file;
 
+    private readonly int $jsonFlags;
+
     protected ?int $lineCount = null;
 
     protected int $lineNumber = 1;
 
-    public function __construct(string $filename, string $mode = 'rb')
-    {
+    public function __construct(
+        string $filename,
+        string $mode = 'rb',
+        ?array $splFileObjectFlags = null,
+        ?array $jsonFlags = null,
+    ) {
         $this->file = new \SplFileObject($filename, $mode);
 
         // Useful to skip empty trailing lines (doesn't work well on PHP 8, see readLine() code)
-        $this->file->setFlags(\SplFileObject::DROP_NEW_LINE | \SplFileObject::READ_AHEAD | \SplFileObject::SKIP_EMPTY);
+        $this->file->setFlags(null !== $splFileObjectFlags
+            ? array_sum($splFileObjectFlags)
+            : \SplFileObject::DROP_NEW_LINE | \SplFileObject::READ_AHEAD | \SplFileObject::SKIP_EMPTY
+        );
+
+        $this->jsonFlags = null !== $jsonFlags
+            ? array_sum($jsonFlags)
+            : \JSON_THROW_ON_ERROR
+        ;
     }
 
     /**
@@ -78,12 +92,12 @@ public function readLine(?int $length = null): ?array
         }
         ++$this->lineNumber;
 
-        return json_decode($rawLine, true, 512, \JSON_THROW_ON_ERROR);
+        return json_decode($rawLine, true, 512, $this->jsonFlags);
     }
 
     public function writeLine(array $fields): int
     {
-        $this->file->fwrite(json_encode($fields, \JSON_THROW_ON_ERROR).\PHP_EOL);
+        $this->file->fwrite(json_encode($fields, $this->jsonFlags).\PHP_EOL);
         ++$this->lineNumber;
 
         return $this->lineNumber;
diff --git a/src/Task/File/JsonStream/JsonStreamReaderTask.php b/src/Task/File/JsonStream/JsonStreamReaderTask.php
index 8db6fc26..e1924b0f 100644
--- a/src/Task/File/JsonStream/JsonStreamReaderTask.php
+++ b/src/Task/File/JsonStream/JsonStreamReaderTask.php
@@ -14,17 +14,25 @@
 namespace CleverAge\ProcessBundle\Task\File\JsonStream;
 
 use CleverAge\ProcessBundle\Filesystem\JsonStreamFile;
+use CleverAge\ProcessBundle\Model\AbstractConfigurableTask;
 use CleverAge\ProcessBundle\Model\IterableTaskInterface;
 use CleverAge\ProcessBundle\Model\ProcessState;
+use Symfony\Component\OptionsResolver\OptionsResolver;
 
-class JsonStreamReaderTask implements IterableTaskInterface
+class JsonStreamReaderTask extends AbstractConfigurableTask implements IterableTaskInterface
 {
     protected ?JsonStreamFile $file = null;
 
     public function execute(ProcessState $state): void
     {
         if (!$this->file instanceof JsonStreamFile) {
-            $this->file = new JsonStreamFile($this->getFilePath($state), 'rb');
+            $options = $this->getOptions($state);
+            $this->file = new JsonStreamFile(
+                $this->getFilePath($state),
+                'rb',
+                $options['spl_file_object_flags'],
+                $options['json_flags'],
+            );
         }
 
         $line = $this->file->readLine();
@@ -49,4 +57,14 @@ protected function getFilePath(ProcessState $state): string
     {
         return $state->getInput();
     }
+
+    protected function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver->setDefaults([
+            'spl_file_object_flags' => null,
+            'json_flags' => null,
+        ]);
+        $resolver->setAllowedTypes('spl_file_object_flags', ['array', 'null']);
+        $resolver->setAllowedTypes('json_flags', ['array', 'null']);
+    }
 }
diff --git a/src/Task/File/JsonStream/JsonStreamWriterTask.php b/src/Task/File/JsonStream/JsonStreamWriterTask.php
index 494cc0ed..c57446b5 100644
--- a/src/Task/File/JsonStream/JsonStreamWriterTask.php
+++ b/src/Task/File/JsonStream/JsonStreamWriterTask.php
@@ -26,9 +26,14 @@ class JsonStreamWriterTask extends AbstractConfigurableTask implements BlockingT
 
     public function execute(ProcessState $state): void
     {
-        $options = $this->getOptions($state);
         if (!$this->file instanceof JsonStreamFile) {
-            $this->file = new JsonStreamFile($options['file_path'], 'wb');
+            $options = $this->getOptions($state);
+            $this->file = new JsonStreamFile(
+                $options['file_path'],
+                'wb',
+                $options['spl_file_object_flags'],
+                $options['json_flags'],
+            );
         }
 
         $input = $state->getInput();
@@ -60,5 +65,11 @@ protected function configureOptions(OptionsResolver $resolver): void
                 ]
             )
         );
+        $resolver->setDefaults([
+            'spl_file_object_flags' => null,
+            'json_flags' => null,
+        ]);
+        $resolver->setAllowedTypes('spl_file_object_flags', ['array', 'null']);
+        $resolver->setAllowedTypes('json_flags', ['array', 'null']);
     }
 }