diff --git a/translation/check.py b/translation/check.py
new file mode 100644
index 000000000..65e5bccf7
--- /dev/null
+++ b/translation/check.py
@@ -0,0 +1,77 @@
+import sys
+import json
+import os.path
+
+lost_key_count, sum_key_count = 0, 0
+
+merge_dicts = False
+verbose_out = False
+#path_to_compare = "../apps/documenteditor/mobile/locale"
+path_to_compare = "../apps"
+#json_pattern = f'{path_to_compare}/en.json'
+
+cmd_args = sys.argv[1:]
+for i in cmd_args:
+    if i == '--merge':
+        merge_dicts = True
+    elif i == '--verbose':
+        verbose_out = True
+    elif i[:2] != '--' and os.path.isdir(i):
+        path_to_compare = i
+        #json_pattern = f'{path_to_compare}/en.json'
+
+def compareDicts(keypath, dict1, dict2):
+    global lost_key_count, sum_key_count
+
+    for k, v in dict1.items():
+        k_path = f'{keypath}{"." if len(keypath) else ""}{k}'
+        if isinstance(v, dict):
+            if k not in dict2:
+                dict2[k] = {}
+
+            dict2[k] = compareDicts(k_path, v, dict2[k])
+        else:
+            sum_key_count += 1
+            if k not in dict2:
+                lost_key_count += 1
+                dict2[k] = v
+                if verbose_out: print(f'  key {k_path} not exists')
+    return dict2
+
+def compareFile(mjson, path):
+    with open(path, 'r+', encoding='utf-8') as cf:
+        res_dict = compareDicts('', mjson, json.load(cf))
+        
+        if merge_dicts and lost_key_count:
+            cf.seek(0)
+            cf.write(json.dumps(res_dict, indent = 2))
+            cf.truncate()
+
+def compareJsonInFolder(path):
+    global lost_key_count, sum_key_count
+
+    cwd = os.path.dirname(path)
+    print('compare path', cwd, '\n')
+    with open(path, 'r') as pf:
+        master_dict = json.load(pf)
+
+        #for root, dirs, files in os.walk(os.path.dirname(path)):
+            #for f in files:
+        files = [f for f in os.listdir(cwd) if os.path.isfile(os.path.join(cwd, f))]
+        for f in files:
+            if f != 'en.json' and f[-5:] == '.json':
+                if verbose_out: print(f'{f} is processing...')
+
+                lost_key_count, sum_key_count = 0, 0
+                compareFile(master_dict, f'{cwd}/{f}')
+                print(f'{f} done, lost {lost_key_count} from {sum_key_count}')
+                print('')
+
+if os.path.exists(f'{path_to_compare}/en.json'):
+    compareJsonInFolder(f'{path_to_compare}/en.json')
+else:
+    for editor in ['documenteditor','spreadsheeteditor','presentationeditor']:
+        path = f'{path_to_compare}/{editor}/mobile/locale/en.json'
+        if os.path.exists(path):
+            compareJsonInFolder(path)
+        else: print(f'wrong path: {path}')