diff --git a/examples/vl_datasets/revert_wds_shards.py b/examples/vl_datasets/revert_wds_shards.py
new file mode 100644
index 00000000..8cc460e1
--- /dev/null
+++ b/examples/vl_datasets/revert_wds_shards.py
@@ -0,0 +1,90 @@
+import json
+import os
+import time
+import yaml
+import webdataset as wds
+from PIL import Image, ImageFile
+import jsonlines
+import copy
+
+from tqdm import tqdm
+
+if __name__ == "__main__":
+  import argparse
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--wds-path', type=str, default=None, help="file path", required=True)
+  parser.add_argument('--output-path', type=str, default="", help="file path", required=True)
+  parser.add_argument('--output-prefix', type=str, default="llava-ov", help="file path", required=False)
+  args = parser.parse_args()
+
+  output = args.output_path
+  if not os.path.exists(output):
+      os.mkdir(output)
+  else:
+      print(f"Dir: {output} already existed.")
+
+  ## Allowed fields and Rename
+  fields_mapping = dict()
+  fields_mapping['id'] = 'id'
+  fields_mapping['source'] = 'source'
+  fields_mapping['conversations'] = 'conversations'
+  fields_mapping['image'] = 'image'
+  fields_mapping['tags'] = 'ram++_tags'
+  fields_mapping['score'] = 'ram++_tags_score'
+  fields_mapping['phash'] = 'phash'
+  fields_mapping = {v: k for k, v in fields_mapping.items()}
+
+  # output_jsonl = os.path.join(output, f"{args.output_prefix}.jsonl") 
+  # writer = jsonlines.open(output_jsonl, mode='w')
+  json_list = []
+  dataset = wds.WebDataset(args.wds_path)
+  filtered = 0
+  batch_size = 1000
+  lines = 0
+  for sample in tqdm(dataset):
+    entry = copy.deepcopy(json.loads(sample['json']))
+    if 'source' in entry:
+      del entry['source']
+    if 'ram++_tags' in entry:
+      del entry['ram++_tags']
+    if 'ram++_tags_score' in entry:
+      del entry['ram++_tags_score']
+    if 'phash' in entry:
+      del entry['phash']
+
+    ## DEBUG
+    #if len(entry['conversations']) != 2:
+    #  continue
+
+    img_data = sample['jpg']
+    if img_data == bytes():
+      pass
+    else:
+      file_name_without_ext, file_extension = os.path.splitext(entry['image'])
+      img_filename = f"{sample['__key__']}{file_extension}"
+      ## TODO
+      #if file_extension != '.jpg':
+      #  continue
+      try:
+        target_dir = os.path.join(output, f"{int(lines/batch_size):05d}")
+        os.makedirs(target_dir, exist_ok=True)
+        img_file = open(os.path.join(target_dir, img_filename), 'wb')
+        img_file.write(img_data)
+        img_file.close()
+
+        #image = Image.open(os.path.join(target_dir, img_filename)).convert("RGB")
+      except Exception as exn:
+        print(exn)
+        filtered += 1
+        continue
+      #entry['image'] = os.path.join(target_dir, img_filename)
+      #entry['image'] = os.path.join(f"{int(lines/batch_size):05d}", img_filename)
+      entry['image'] = os.path.join(os.path.abspath(target_dir), img_filename)
+    json_list.append(entry)
+    lines += 1
+    # writer.write(entry)
+
+  json_file = os.path.join(output, f"{args.output_prefix}.json") 
+  with open(json_file, 'w', encoding='utf-8') as f:
+      json.dump(json_list, f, ensure_ascii=False, indent=4)
+  print(f"Filtered {filtered} samples.", flush=True)