diff --git a/README.md b/README.md
index c7c566d..1e3895f 100644
--- a/README.md
+++ b/README.md
@@ -19,28 +19,15 @@ python -m spacy download en_core_web_sm
 
 ## Example
 
-To use the `Mask` class, create an instance and call the `mask_text` method with your input text:
+To use the `Mask` class, create an instance and call the `mask` method with your input text and desired format. The default format is `txt`, so you don't need to pass format parameter if input data is simple text:
 
 ```python
 masker = Mask()
-masked_text = masker.mask_text("Contact me at john.doe@example.com or call me at (555) 123-4567.")
-print(masked_text)
-```
-## Using the `mask_file` Method
-
-The `mask_file` method allows you to read a text file, mask any PII present, and return the masked content. Here’s how to use it:
-
-### Example
+# Mask Json Data
+masked_json = masker.mask(input_data='{"phone" : "(988) 888 9821"}',format='json')
+print("Masked Json: " + masked_json)
 
-1. Create a text file (e.g., `example.txt`) with the following content:
-```bash
-Please reach out to me at jane.doe@example.com or at (555) 987-6543.
+# Mask text
+masked_text = masker.mask(input_data='My name is John Doe and I live in Canada.')
+print("Masked Text: " + masked_text)
 ```
-2. Use the `mask_file` method to mask the PII in the file:
-
-```python
-masker = Mask()
-masked_file_text = masker.mask_file("example.txt")
-print(masked_file_text)
-```
-
diff --git a/main.py b/main.py
index ac40bbc..73ad7d7 100644
--- a/main.py
+++ b/main.py
@@ -3,7 +3,12 @@
 if __name__ == "__main__":
     mask_pii = Mask()
     try:
-        masked_text = mask_pii.mask_file('file.txt')
+        # Mask Json Data
+        masked_json = mask_pii.mask(input_data='{"phone" : "(988) 888 9821"}',format='json')
+        print("Masked Json: " + masked_json)
+
+        # Mask text
+        masked_text = mask_pii.mask(input_data='My name is John Doe and I live in Canada.')
         print("Masked Text: " + masked_text)
-    except:
-        print('Unexpected error!!')
\ No newline at end of file
+    except Exception as e:
+        print(e)
\ No newline at end of file
diff --git a/mask/mask.py b/mask/mask.py
index 8cf2d57..2ba5135 100644
--- a/mask/mask.py
+++ b/mask/mask.py
@@ -1,19 +1,19 @@
 import spacy
 import re
+from typing import Union
+import json
 
 class Mask:
-    def __init__(self) -> None:
-        self.patterns = {
+    __patterns = {
             'phone': r'(?:\+\d{1,3}[-\s]?)?\(?\d{3}\)?[-\s]?\d{3}[-\s]?\d{4}',
             'email': r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b',
             'ipv6': r'\b(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))\b',
             'ipv4': r'\b((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}\b'
-        }
+    }
 
     def mask_text(self,text:str) -> str:
-
-        for category,pattern in self.patterns.items():
-            text = re.sub(pattern, f'[REDACTED {category.upper()}]', text)
+        for category,pattern in self.__patterns.items():
+            text = re.sub(pattern, f'[MASKED {category.upper()}]', text)
 
         text = self.mask_nlp(text)
 
@@ -24,12 +24,25 @@ def mask_nlp(self,text:str) -> str:
         doc = nlp(text)
 
         for ent in doc.ents:
-            print(f'Label: {ent.label_}: Value: {ent.text}')
-            text = re.sub(ent.text,f'[REDACTED {ent.label_}]',text)
+            # print(f'Label: {ent.label_}: Value: {ent.text}')
+            text = re.sub(ent.text,f'[MASKED {ent.label_}]',text)
         return text
     
-    def mask_file(self,file_name:str) -> str:
-        print('File Name: ' + file_name)
-        with open(file_name,'r') as file:
-            file_text = file.read()
-        return self.mask_text(file_text)
\ No newline at end of file
+    def mask_dict(self, input_data: dict) -> dict:
+        for key,value in input_data.items():
+           
+           if isinstance(value,dict):
+               input_data[key] = self.mask_dict(value)
+           elif isinstance(value,list):
+               input_data[key] = [self.mask_dict(sub_val) if isinstance(sub_val,dict) else sub_val for sub_val in value]
+           elif isinstance(value,str):
+               input_data[key] = self.mask_text(value) 
+        return input_data
+    
+    def mask(self, input_data: Union[str,dict], format: str = "txt") -> Union[str,dict]:
+        if format == "txt":
+            masked_data = self.mask_text(input_data)
+        elif format == "json":
+            masked_data = json.loads(input_data)
+            masked_data = json.dumps(self.mask_dict(masked_data),separators=(",",":"))
+        return masked_data
\ No newline at end of file