diff --git a/.changeset/wet-scissors-speak.md b/.changeset/wet-scissors-speak.md
new file mode 100644
index 0000000..9a88d53
--- /dev/null
+++ b/.changeset/wet-scissors-speak.md
@@ -0,0 +1,5 @@
+---
+"signal-form": patch
+---
+
+Improve change event handling and add filter property
diff --git a/lib/controls/check-box-input.tsx b/lib/controls/check-box-input.tsx
index f511b36..a76d41d 100644
--- a/lib/controls/check-box-input.tsx
+++ b/lib/controls/check-box-input.tsx
@@ -9,10 +9,11 @@ export type CheckBoxInputProps = Omit<
   "type"
 > & {
   name: string;
+  onAfterChange?: ChangeEventHandler<HTMLInputElement>;
 };
 
 export const CheckBoxInput = forwardRef<HTMLInputElement, CheckBoxInputProps>(
-  ({ name, onChange, ...props }, forwardedRef) => {
+  ({ name, onChange, onAfterChange, ...props }, forwardedRef) => {
     let field = useField(name);
     let value = useFieldData<boolean>(name, false);
     let ref = useForwardedRef(forwardedRef);
@@ -26,10 +27,13 @@ export const CheckBoxInput = forwardRef<HTMLInputElement, CheckBoxInputProps>(
     let onChangeHandler: ChangeEventHandler<HTMLInputElement> = useCallback(
       (e) => {
         onChange?.(e);
-        batch(() => {
-          field.setData(e.target.checked);
-          field.setTouched();
-        });
+        if (!e.isDefaultPrevented()) {
+          batch(() => {
+            field.setData(e.target.checked);
+            field.setTouched();
+          });
+        }
+        onAfterChange?.(e);
       },
       []
     );
diff --git a/lib/controls/input.tsx b/lib/controls/input.tsx
index 083a433..0cd83ab 100644
--- a/lib/controls/input.tsx
+++ b/lib/controls/input.tsx
@@ -11,10 +11,15 @@ export type InputProps = Omit<
 > & {
   name: string;
   value?: string | ReadonlySignal<string>;
+  onAfterChange?: ChangeEventHandler<HTMLInputElement>;
+  filter?: (value: string) => string;
 };
 
 export const Input = forwardRef<HTMLInputElement, InputProps>(
-  ({ name, value, onChange, ...props }, forwardedRef) => {
+  (
+    { name, value, onChange, onAfterChange, filter, ...props },
+    forwardedRef
+  ) => {
     let field = useField<string>(name);
     let ref = useForwardedRef(forwardedRef);
 
@@ -37,10 +42,13 @@ export const Input = forwardRef<HTMLInputElement, InputProps>(
     let onChangeHandler: ChangeEventHandler<HTMLInputElement> = useCallback(
       (e) => {
         onChange?.(e);
-        batch(() => {
-          field.setData(e.target.value);
-          field.setTouched();
-        });
+        if (!e.isDefaultPrevented()) {
+          batch(() => {
+            field.setData(filter ? filter(e.target.value) : e.target.value);
+            field.setTouched();
+          });
+        }
+        onAfterChange?.(e);
       },
       []
     );
diff --git a/lib/controls/radio-input.tsx b/lib/controls/radio-input.tsx
index 33211ac..8b3adc3 100644
--- a/lib/controls/radio-input.tsx
+++ b/lib/controls/radio-input.tsx
@@ -10,10 +10,11 @@ export type RadioInputProps = Omit<
 > & {
   name: string;
   value: string;
+  onAfterChange?: ChangeEventHandler<HTMLInputElement>;
 };
 
 export const RadioInput = forwardRef<HTMLInputElement, RadioInputProps>(
-  ({ name, value, onChange, ...props }, forwardedRef) => {
+  ({ name, value, onChange, onAfterChange, ...props }, forwardedRef) => {
     let field = useField<string>(name);
     let isChecked = useComputedValue(() => {
       return field.data.value?.toString() === value.toString();
@@ -30,10 +31,13 @@ export const RadioInput = forwardRef<HTMLInputElement, RadioInputProps>(
     let onChangeHandler: ChangeEventHandler<HTMLInputElement> = useCallback(
       (e) => {
         onChange?.(e);
-        batch(() => {
-          field.setData(value);
-          field.setTouched();
-        });
+        if (!e.isDefaultPrevented()) {
+          batch(() => {
+            field.setData(value);
+            field.setTouched();
+          });
+        }
+        onAfterChange?.(e);
       },
       []
     );
diff --git a/lib/controls/select.tsx b/lib/controls/select.tsx
index 286998e..cb75f39 100644
--- a/lib/controls/select.tsx
+++ b/lib/controls/select.tsx
@@ -6,6 +6,7 @@ import { useForwardedRef } from "~/utils/use-forwarded-ref";
 
 export type SelectProps = SelectHTMLAttributes<HTMLSelectElement> & {
   name: string;
+  onAfterChange?: ChangeEventHandler<HTMLSelectElement>;
 };
 
 export const Select = forwardRef<HTMLSelectElement, SelectProps>(
@@ -19,7 +20,7 @@ export const Select = forwardRef<HTMLSelectElement, SelectProps>(
 );
 
 export const SingleSelect = forwardRef<HTMLSelectElement, SelectProps>(
-  ({ name, multiple, onChange, ...props }, forwardedRef) => {
+  ({ name, multiple, onChange, onAfterChange, ...props }, forwardedRef) => {
     let field = useField(name);
     let value = useFieldData<string>(name, "");
     let ref = useForwardedRef(forwardedRef);
@@ -33,10 +34,13 @@ export const SingleSelect = forwardRef<HTMLSelectElement, SelectProps>(
     let onChangeHandler: ChangeEventHandler<HTMLSelectElement> = useCallback(
       (e) => {
         onChange?.(e);
-        batch(() => {
-          field.setData(e.target.value);
-          field.setTouched();
-        });
+        if (!e.isDefaultPrevented()) {
+          batch(() => {
+            field.setData(e.target.value);
+            field.setTouched();
+          });
+        }
+        onAfterChange?.(e);
       },
       []
     );
@@ -55,7 +59,7 @@ export const SingleSelect = forwardRef<HTMLSelectElement, SelectProps>(
 );
 
 export const MultipleSelect = forwardRef<HTMLSelectElement, SelectProps>(
-  ({ name, multiple, onChange, ...props }, forwardedRef) => {
+  ({ name, multiple, onChange, onAfterChange, ...props }, forwardedRef) => {
     let field = useField(name);
     let value = useFieldData<string[]>(name, []);
     let ref = useForwardedRef<HTMLSelectElement>(forwardedRef);
@@ -69,10 +73,13 @@ export const MultipleSelect = forwardRef<HTMLSelectElement, SelectProps>(
     let onChangeHandler: ChangeEventHandler<HTMLSelectElement> = useCallback(
       (e) => {
         onChange?.(e);
-        batch(() => {
-          field.setData(Array.from(e.target.selectedOptions, (o) => o.value));
-          field.setTouched();
-        });
+        if (!e.isDefaultPrevented()) {
+          batch(() => {
+            field.setData(Array.from(e.target.selectedOptions, (o) => o.value));
+            field.setTouched();
+          });
+        }
+        onAfterChange?.(e);
       },
       []
     );
diff --git a/lib/controls/text-area.tsx b/lib/controls/text-area.tsx
index 7cae5a1..13b14d8 100644
--- a/lib/controls/text-area.tsx
+++ b/lib/controls/text-area.tsx
@@ -11,10 +11,11 @@ export type TextAreaProps = Omit<
 > & {
   name: string;
   value?: string | ReadonlySignal<string>;
+  onAfterChange?: ChangeEventHandler<HTMLTextAreaElement>;
 };
 
 export const TextArea = forwardRef<HTMLTextAreaElement, TextAreaProps>(
-  ({ name, value, onChange, ...props }, forwardedRef) => {
+  ({ name, value, onChange, onAfterChange, ...props }, forwardedRef) => {
     let field = useField<string>(name);
     let ref = useForwardedRef(forwardedRef);
 
@@ -37,10 +38,13 @@ export const TextArea = forwardRef<HTMLTextAreaElement, TextAreaProps>(
     let onChangeHandler: ChangeEventHandler<HTMLTextAreaElement> = useCallback(
       (e) => {
         onChange?.(e);
-        batch(() => {
-          field.setData(e.target.value);
-          field.setTouched();
-        });
+        if (!e.isDefaultPrevented()) {
+          batch(() => {
+            field.setData(e.target.value);
+            field.setTouched();
+          });
+        }
+        onAfterChange?.(e);
       },
       []
     );
diff --git a/stories/Input.stories.tsx b/stories/Input.stories.tsx
index 78f8534..43eb720 100644
--- a/stories/Input.stories.tsx
+++ b/stories/Input.stories.tsx
@@ -127,3 +127,18 @@ export const Reactive: Story = {
     );
   },
 };
+
+export const Filtered: Story = {
+  render() {
+    return (
+      <Form>
+        <p>
+          <label>
+            Code:{" "}
+            <Input name="name" filter={(v) => v.toUpperCase().slice(0, 6)} />
+          </label>
+        </p>
+      </Form>
+    );
+  },
+};