diff --git a/demo/forms.py b/demo/forms.py
index 89716389..5513f429 100644
--- a/demo/forms.py
+++ b/demo/forms.py
@@ -1,6 +1,7 @@
 from __future__ import annotations as _annotations
 
 import enum
+import uuid
 from collections import defaultdict
 from datetime import date
 from typing import Annotated, Literal, TypeAlias
@@ -164,11 +165,15 @@ class BigModel(BaseModel):
         None, title='Is human', description='Are you human?', json_schema_extra={'mode': 'switch'}
     )
     size: SizeModel
-
     position: tuple[
         Annotated[int, Field(description='X Coordinate')],
         Annotated[int, Field(description='Y Coordinate')],
     ]
+    auto_generated_id: str = Field(
+        str(uuid.uuid4()),
+        description='This field is locked',
+        json_schema_extra={'locked': True},
+    )
 
     @field_validator('name')
     def name_validator(cls, v: str | None) -> str:
diff --git a/src/npm-fastui/src/components/form.tsx b/src/npm-fastui/src/components/form.tsx
index 62ae44eb..44afffa5 100644
--- a/src/npm-fastui/src/components/form.tsx
+++ b/src/npm-fastui/src/components/form.tsx
@@ -107,7 +107,7 @@ export const FormComp: FC<Form | ModelForm> = (props) => {
     const f = {
       ...formField,
       error: fieldErrors[formField.name],
-      locked,
+      locked: locked || formField.locked,
       displayMode,
       onChange,
     } as FormFieldProps
diff --git a/src/python-fastui/fastui/json_schema.py b/src/python-fastui/fastui/json_schema.py
index c822f180..75f85108 100644
--- a/src/python-fastui/fastui/json_schema.py
+++ b/src/python-fastui/fastui/json_schema.py
@@ -182,6 +182,7 @@ def json_schema_field_to_field(
             name=name,
             title=title,
             required=required,
+            locked=schema.get('locked', False),
             initial=schema.get('default'),
             description=schema.get('description'),
             mode=schema.get('mode', 'checkbox'),
@@ -194,6 +195,7 @@ def json_schema_field_to_field(
             title=title,
             html_type=input_html_type(schema),
             required=required,
+            locked=schema.get('locked', False),
             initial=schema.get('default'),
             autocomplete=schema.get('autocomplete'),
             description=schema.get('description'),
@@ -244,6 +246,7 @@ def special_string_field(
                 name=name,
                 title=title,
                 required=required,
+                locked=schema.get('locked', False),
                 multiple=multiple,
                 accept=schema.get('accept'),
                 description=schema.get('description'),
@@ -253,6 +256,7 @@ def special_string_field(
                 name=name,
                 title=title,
                 required=required,
+                locked=schema.get('locked', False),
                 rows=schema.get('rows'),
                 cols=schema.get('cols'),
                 placeholder=schema.get('placeholder'),
@@ -267,6 +271,7 @@ def special_string_field(
                 title=title,
                 placeholder=schema.get('placeholder'),
                 required=required,
+                locked=schema.get('locked', False),
                 multiple=multiple,
                 options=[SelectOption(value=v, label=enum_labels.get(v) or as_title(v)) for v in enum],
                 initial=schema.get('default'),
@@ -280,6 +285,7 @@ def special_string_field(
                 title=title,
                 placeholder=schema.get('placeholder'),
                 required=required,
+                locked=schema.get('locked', False),
                 multiple=multiple,
                 initial=schema.get('initial'),
                 description=schema.get('description'),