diff --git a/docs/docs/basics/parsers.md b/docs/docs/basics/parsers.md
index b9b3b1d1..9d9101ac 100644
--- a/docs/docs/basics/parsers.md
+++ b/docs/docs/basics/parsers.md
@@ -34,7 +34,7 @@ class MiraiTextParser extends MiraiParser<MiraiText> {
       textDirection: model.textDirection,
       softWrap: model.softWrap,
       overflow: model.overflow,
-      textScaleFactor: model.textScaleFactor,
+      textScaler: MiraiTextScalerParser.parse(model.textScaler),
       maxLines: model.maxLines,
       semanticsLabel: model.semanticsLabel,
       textWidthBasis: model.textWidthBasis,
diff --git a/packages/mirai/lib/src/parsers/mirai_text/mirai_text.dart b/packages/mirai/lib/src/parsers/mirai_text/mirai_text.dart
index 5a766c40..e4b86bb6 100644
--- a/packages/mirai/lib/src/parsers/mirai_text/mirai_text.dart
+++ b/packages/mirai/lib/src/parsers/mirai_text/mirai_text.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/cupertino.dart';
 import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:mirai/src/parsers/mirai_text_scaler/mirai_text_scaler.dart';
 import 'package:mirai/src/parsers/mirai_text_style/mirai_text_style.dart';
 
 export 'package:mirai/src/parsers/mirai_text/mirai_text_parser.dart';
@@ -17,7 +18,7 @@ class MiraiText with _$MiraiText {
     TextDirection? textDirection,
     bool? softWrap,
     TextOverflow? overflow,
-    double? textScaleFactor,
+    MiraiTextScaler? textScaler,
     int? maxLines,
     String? semanticsLabel,
     TextWidthBasis? textWidthBasis,
diff --git a/packages/mirai/lib/src/parsers/mirai_text/mirai_text.freezed.dart b/packages/mirai/lib/src/parsers/mirai_text/mirai_text.freezed.dart
index 9aa2bd76..39d4735d 100644
--- a/packages/mirai/lib/src/parsers/mirai_text/mirai_text.freezed.dart
+++ b/packages/mirai/lib/src/parsers/mirai_text/mirai_text.freezed.dart
@@ -27,7 +27,7 @@ mixin _$MiraiText {
   TextDirection? get textDirection => throw _privateConstructorUsedError;
   bool? get softWrap => throw _privateConstructorUsedError;
   TextOverflow? get overflow => throw _privateConstructorUsedError;
-  double? get textScaleFactor => throw _privateConstructorUsedError;
+  MiraiTextScaler? get textScaler => throw _privateConstructorUsedError;
   int? get maxLines => throw _privateConstructorUsedError;
   String? get semanticsLabel => throw _privateConstructorUsedError;
   TextWidthBasis? get textWidthBasis => throw _privateConstructorUsedError;
@@ -52,13 +52,14 @@ abstract class $MiraiTextCopyWith<$Res> {
       TextDirection? textDirection,
       bool? softWrap,
       TextOverflow? overflow,
-      double? textScaleFactor,
+      MiraiTextScaler? textScaler,
       int? maxLines,
       String? semanticsLabel,
       TextWidthBasis? textWidthBasis,
       String? selectionColor});
 
   $MiraiTextStyleCopyWith<$Res>? get style;
+  $MiraiTextScalerCopyWith<$Res>? get textScaler;
 }
 
 /// @nodoc
@@ -81,7 +82,7 @@ class _$MiraiTextCopyWithImpl<$Res, $Val extends MiraiText>
     Object? textDirection = freezed,
     Object? softWrap = freezed,
     Object? overflow = freezed,
-    Object? textScaleFactor = freezed,
+    Object? textScaler = freezed,
     Object? maxLines = freezed,
     Object? semanticsLabel = freezed,
     Object? textWidthBasis = freezed,
@@ -116,10 +117,10 @@ class _$MiraiTextCopyWithImpl<$Res, $Val extends MiraiText>
           ? _value.overflow
           : overflow // ignore: cast_nullable_to_non_nullable
               as TextOverflow?,
-      textScaleFactor: freezed == textScaleFactor
-          ? _value.textScaleFactor
-          : textScaleFactor // ignore: cast_nullable_to_non_nullable
-              as double?,
+      textScaler: freezed == textScaler
+          ? _value.textScaler
+          : textScaler // ignore: cast_nullable_to_non_nullable
+              as MiraiTextScaler?,
       maxLines: freezed == maxLines
           ? _value.maxLines
           : maxLines // ignore: cast_nullable_to_non_nullable
@@ -150,13 +151,26 @@ class _$MiraiTextCopyWithImpl<$Res, $Val extends MiraiText>
       return _then(_value.copyWith(style: value) as $Val);
     });
   }
+
+  @override
+  @pragma('vm:prefer-inline')
+  $MiraiTextScalerCopyWith<$Res>? get textScaler {
+    if (_value.textScaler == null) {
+      return null;
+    }
+
+    return $MiraiTextScalerCopyWith<$Res>(_value.textScaler!, (value) {
+      return _then(_value.copyWith(textScaler: value) as $Val);
+    });
+  }
 }
 
 /// @nodoc
-abstract class _$$_MiraiTextCopyWith<$Res> implements $MiraiTextCopyWith<$Res> {
-  factory _$$_MiraiTextCopyWith(
-          _$_MiraiText value, $Res Function(_$_MiraiText) then) =
-      __$$_MiraiTextCopyWithImpl<$Res>;
+abstract class _$$MiraiTextImplCopyWith<$Res>
+    implements $MiraiTextCopyWith<$Res> {
+  factory _$$MiraiTextImplCopyWith(
+          _$MiraiTextImpl value, $Res Function(_$MiraiTextImpl) then) =
+      __$$MiraiTextImplCopyWithImpl<$Res>;
   @override
   @useResult
   $Res call(
@@ -167,7 +181,7 @@ abstract class _$$_MiraiTextCopyWith<$Res> implements $MiraiTextCopyWith<$Res> {
       TextDirection? textDirection,
       bool? softWrap,
       TextOverflow? overflow,
-      double? textScaleFactor,
+      MiraiTextScaler? textScaler,
       int? maxLines,
       String? semanticsLabel,
       TextWidthBasis? textWidthBasis,
@@ -175,14 +189,16 @@ abstract class _$$_MiraiTextCopyWith<$Res> implements $MiraiTextCopyWith<$Res> {
 
   @override
   $MiraiTextStyleCopyWith<$Res>? get style;
+  @override
+  $MiraiTextScalerCopyWith<$Res>? get textScaler;
 }
 
 /// @nodoc
-class __$$_MiraiTextCopyWithImpl<$Res>
-    extends _$MiraiTextCopyWithImpl<$Res, _$_MiraiText>
-    implements _$$_MiraiTextCopyWith<$Res> {
-  __$$_MiraiTextCopyWithImpl(
-      _$_MiraiText _value, $Res Function(_$_MiraiText) _then)
+class __$$MiraiTextImplCopyWithImpl<$Res>
+    extends _$MiraiTextCopyWithImpl<$Res, _$MiraiTextImpl>
+    implements _$$MiraiTextImplCopyWith<$Res> {
+  __$$MiraiTextImplCopyWithImpl(
+      _$MiraiTextImpl _value, $Res Function(_$MiraiTextImpl) _then)
       : super(_value, _then);
 
   @pragma('vm:prefer-inline')
@@ -195,13 +211,13 @@ class __$$_MiraiTextCopyWithImpl<$Res>
     Object? textDirection = freezed,
     Object? softWrap = freezed,
     Object? overflow = freezed,
-    Object? textScaleFactor = freezed,
+    Object? textScaler = freezed,
     Object? maxLines = freezed,
     Object? semanticsLabel = freezed,
     Object? textWidthBasis = freezed,
     Object? selectionColor = freezed,
   }) {
-    return _then(_$_MiraiText(
+    return _then(_$MiraiTextImpl(
       data: null == data
           ? _value.data
           : data // ignore: cast_nullable_to_non_nullable
@@ -230,10 +246,10 @@ class __$$_MiraiTextCopyWithImpl<$Res>
           ? _value.overflow
           : overflow // ignore: cast_nullable_to_non_nullable
               as TextOverflow?,
-      textScaleFactor: freezed == textScaleFactor
-          ? _value.textScaleFactor
-          : textScaleFactor // ignore: cast_nullable_to_non_nullable
-              as double?,
+      textScaler: freezed == textScaler
+          ? _value.textScaler
+          : textScaler // ignore: cast_nullable_to_non_nullable
+              as MiraiTextScaler?,
       maxLines: freezed == maxLines
           ? _value.maxLines
           : maxLines // ignore: cast_nullable_to_non_nullable
@@ -256,8 +272,8 @@ class __$$_MiraiTextCopyWithImpl<$Res>
 
 /// @nodoc
 @JsonSerializable()
-class _$_MiraiText implements _MiraiText {
-  const _$_MiraiText(
+class _$MiraiTextImpl implements _MiraiText {
+  const _$MiraiTextImpl(
       {required this.data,
       final List<MiraiTextSpan> children = const [],
       this.style,
@@ -265,15 +281,15 @@ class _$_MiraiText implements _MiraiText {
       this.textDirection,
       this.softWrap,
       this.overflow,
-      this.textScaleFactor,
+      this.textScaler,
       this.maxLines,
       this.semanticsLabel,
       this.textWidthBasis,
       this.selectionColor})
       : _children = children;
 
-  factory _$_MiraiText.fromJson(Map<String, dynamic> json) =>
-      _$$_MiraiTextFromJson(json);
+  factory _$MiraiTextImpl.fromJson(Map<String, dynamic> json) =>
+      _$$MiraiTextImplFromJson(json);
 
   @override
   final String data;
@@ -297,7 +313,7 @@ class _$_MiraiText implements _MiraiText {
   @override
   final TextOverflow? overflow;
   @override
-  final double? textScaleFactor;
+  final MiraiTextScaler? textScaler;
   @override
   final int? maxLines;
   @override
@@ -309,14 +325,14 @@ class _$_MiraiText implements _MiraiText {
 
   @override
   String toString() {
-    return 'MiraiText(data: $data, children: $children, style: $style, textAlign: $textAlign, textDirection: $textDirection, softWrap: $softWrap, overflow: $overflow, textScaleFactor: $textScaleFactor, maxLines: $maxLines, semanticsLabel: $semanticsLabel, textWidthBasis: $textWidthBasis, selectionColor: $selectionColor)';
+    return 'MiraiText(data: $data, children: $children, style: $style, textAlign: $textAlign, textDirection: $textDirection, softWrap: $softWrap, overflow: $overflow, textScaler: $textScaler, maxLines: $maxLines, semanticsLabel: $semanticsLabel, textWidthBasis: $textWidthBasis, selectionColor: $selectionColor)';
   }
 
   @override
   bool operator ==(dynamic other) {
     return identical(this, other) ||
         (other.runtimeType == runtimeType &&
-            other is _$_MiraiText &&
+            other is _$MiraiTextImpl &&
             (identical(other.data, data) || other.data == data) &&
             const DeepCollectionEquality().equals(other._children, _children) &&
             (identical(other.style, style) || other.style == style) &&
@@ -328,8 +344,8 @@ class _$_MiraiText implements _MiraiText {
                 other.softWrap == softWrap) &&
             (identical(other.overflow, overflow) ||
                 other.overflow == overflow) &&
-            (identical(other.textScaleFactor, textScaleFactor) ||
-                other.textScaleFactor == textScaleFactor) &&
+            (identical(other.textScaler, textScaler) ||
+                other.textScaler == textScaler) &&
             (identical(other.maxLines, maxLines) ||
                 other.maxLines == maxLines) &&
             (identical(other.semanticsLabel, semanticsLabel) ||
@@ -351,7 +367,7 @@ class _$_MiraiText implements _MiraiText {
       textDirection,
       softWrap,
       overflow,
-      textScaleFactor,
+      textScaler,
       maxLines,
       semanticsLabel,
       textWidthBasis,
@@ -360,12 +376,12 @@ class _$_MiraiText implements _MiraiText {
   @JsonKey(ignore: true)
   @override
   @pragma('vm:prefer-inline')
-  _$$_MiraiTextCopyWith<_$_MiraiText> get copyWith =>
-      __$$_MiraiTextCopyWithImpl<_$_MiraiText>(this, _$identity);
+  _$$MiraiTextImplCopyWith<_$MiraiTextImpl> get copyWith =>
+      __$$MiraiTextImplCopyWithImpl<_$MiraiTextImpl>(this, _$identity);
 
   @override
   Map<String, dynamic> toJson() {
-    return _$$_MiraiTextToJson(
+    return _$$MiraiTextImplToJson(
       this,
     );
   }
@@ -380,14 +396,14 @@ abstract class _MiraiText implements MiraiText {
       final TextDirection? textDirection,
       final bool? softWrap,
       final TextOverflow? overflow,
-      final double? textScaleFactor,
+      final MiraiTextScaler? textScaler,
       final int? maxLines,
       final String? semanticsLabel,
       final TextWidthBasis? textWidthBasis,
-      final String? selectionColor}) = _$_MiraiText;
+      final String? selectionColor}) = _$MiraiTextImpl;
 
   factory _MiraiText.fromJson(Map<String, dynamic> json) =
-      _$_MiraiText.fromJson;
+      _$MiraiTextImpl.fromJson;
 
   @override
   String get data;
@@ -404,7 +420,7 @@ abstract class _MiraiText implements MiraiText {
   @override
   TextOverflow? get overflow;
   @override
-  double? get textScaleFactor;
+  MiraiTextScaler? get textScaler;
   @override
   int? get maxLines;
   @override
@@ -415,7 +431,7 @@ abstract class _MiraiText implements MiraiText {
   String? get selectionColor;
   @override
   @JsonKey(ignore: true)
-  _$$_MiraiTextCopyWith<_$_MiraiText> get copyWith =>
+  _$$MiraiTextImplCopyWith<_$MiraiTextImpl> get copyWith =>
       throw _privateConstructorUsedError;
 }
 
@@ -493,11 +509,11 @@ class _$MiraiTextSpanCopyWithImpl<$Res, $Val extends MiraiTextSpan>
 }
 
 /// @nodoc
-abstract class _$$_MiraiTextSpanCopyWith<$Res>
+abstract class _$$MiraiTextSpanImplCopyWith<$Res>
     implements $MiraiTextSpanCopyWith<$Res> {
-  factory _$$_MiraiTextSpanCopyWith(
-          _$_MiraiTextSpan value, $Res Function(_$_MiraiTextSpan) then) =
-      __$$_MiraiTextSpanCopyWithImpl<$Res>;
+  factory _$$MiraiTextSpanImplCopyWith(
+          _$MiraiTextSpanImpl value, $Res Function(_$MiraiTextSpanImpl) then) =
+      __$$MiraiTextSpanImplCopyWithImpl<$Res>;
   @override
   @useResult
   $Res call({String? data, MiraiTextStyle? style, Map<String, dynamic>? onTap});
@@ -507,11 +523,11 @@ abstract class _$$_MiraiTextSpanCopyWith<$Res>
 }
 
 /// @nodoc
-class __$$_MiraiTextSpanCopyWithImpl<$Res>
-    extends _$MiraiTextSpanCopyWithImpl<$Res, _$_MiraiTextSpan>
-    implements _$$_MiraiTextSpanCopyWith<$Res> {
-  __$$_MiraiTextSpanCopyWithImpl(
-      _$_MiraiTextSpan _value, $Res Function(_$_MiraiTextSpan) _then)
+class __$$MiraiTextSpanImplCopyWithImpl<$Res>
+    extends _$MiraiTextSpanCopyWithImpl<$Res, _$MiraiTextSpanImpl>
+    implements _$$MiraiTextSpanImplCopyWith<$Res> {
+  __$$MiraiTextSpanImplCopyWithImpl(
+      _$MiraiTextSpanImpl _value, $Res Function(_$MiraiTextSpanImpl) _then)
       : super(_value, _then);
 
   @pragma('vm:prefer-inline')
@@ -521,7 +537,7 @@ class __$$_MiraiTextSpanCopyWithImpl<$Res>
     Object? style = freezed,
     Object? onTap = freezed,
   }) {
-    return _then(_$_MiraiTextSpan(
+    return _then(_$MiraiTextSpanImpl(
       data: freezed == data
           ? _value.data
           : data // ignore: cast_nullable_to_non_nullable
@@ -540,13 +556,13 @@ class __$$_MiraiTextSpanCopyWithImpl<$Res>
 
 /// @nodoc
 @JsonSerializable()
-class _$_MiraiTextSpan implements _MiraiTextSpan {
-  const _$_MiraiTextSpan(
+class _$MiraiTextSpanImpl implements _MiraiTextSpan {
+  const _$MiraiTextSpanImpl(
       {this.data, this.style, final Map<String, dynamic>? onTap})
       : _onTap = onTap;
 
-  factory _$_MiraiTextSpan.fromJson(Map<String, dynamic> json) =>
-      _$$_MiraiTextSpanFromJson(json);
+  factory _$MiraiTextSpanImpl.fromJson(Map<String, dynamic> json) =>
+      _$$MiraiTextSpanImplFromJson(json);
 
   @override
   final String? data;
@@ -571,7 +587,7 @@ class _$_MiraiTextSpan implements _MiraiTextSpan {
   bool operator ==(dynamic other) {
     return identical(this, other) ||
         (other.runtimeType == runtimeType &&
-            other is _$_MiraiTextSpan &&
+            other is _$MiraiTextSpanImpl &&
             (identical(other.data, data) || other.data == data) &&
             (identical(other.style, style) || other.style == style) &&
             const DeepCollectionEquality().equals(other._onTap, _onTap));
@@ -585,12 +601,12 @@ class _$_MiraiTextSpan implements _MiraiTextSpan {
   @JsonKey(ignore: true)
   @override
   @pragma('vm:prefer-inline')
-  _$$_MiraiTextSpanCopyWith<_$_MiraiTextSpan> get copyWith =>
-      __$$_MiraiTextSpanCopyWithImpl<_$_MiraiTextSpan>(this, _$identity);
+  _$$MiraiTextSpanImplCopyWith<_$MiraiTextSpanImpl> get copyWith =>
+      __$$MiraiTextSpanImplCopyWithImpl<_$MiraiTextSpanImpl>(this, _$identity);
 
   @override
   Map<String, dynamic> toJson() {
-    return _$$_MiraiTextSpanToJson(
+    return _$$MiraiTextSpanImplToJson(
       this,
     );
   }
@@ -600,10 +616,10 @@ abstract class _MiraiTextSpan implements MiraiTextSpan {
   const factory _MiraiTextSpan(
       {final String? data,
       final MiraiTextStyle? style,
-      final Map<String, dynamic>? onTap}) = _$_MiraiTextSpan;
+      final Map<String, dynamic>? onTap}) = _$MiraiTextSpanImpl;
 
   factory _MiraiTextSpan.fromJson(Map<String, dynamic> json) =
-      _$_MiraiTextSpan.fromJson;
+      _$MiraiTextSpanImpl.fromJson;
 
   @override
   String? get data;
@@ -613,6 +629,6 @@ abstract class _MiraiTextSpan implements MiraiTextSpan {
   Map<String, dynamic>? get onTap;
   @override
   @JsonKey(ignore: true)
-  _$$_MiraiTextSpanCopyWith<_$_MiraiTextSpan> get copyWith =>
+  _$$MiraiTextSpanImplCopyWith<_$MiraiTextSpanImpl> get copyWith =>
       throw _privateConstructorUsedError;
 }
diff --git a/packages/mirai/lib/src/parsers/mirai_text/mirai_text.g.dart b/packages/mirai/lib/src/parsers/mirai_text/mirai_text.g.dart
index 3e228c0d..6b0167b3 100644
--- a/packages/mirai/lib/src/parsers/mirai_text/mirai_text.g.dart
+++ b/packages/mirai/lib/src/parsers/mirai_text/mirai_text.g.dart
@@ -6,7 +6,8 @@ part of 'mirai_text.dart';
 // JsonSerializableGenerator
 // **************************************************************************
 
-_$_MiraiText _$$_MiraiTextFromJson(Map<String, dynamic> json) => _$_MiraiText(
+_$MiraiTextImpl _$$MiraiTextImplFromJson(Map<String, dynamic> json) =>
+    _$MiraiTextImpl(
       data: json['data'] as String,
       children: (json['children'] as List<dynamic>?)
               ?.map((e) => MiraiTextSpan.fromJson(e as Map<String, dynamic>))
@@ -20,7 +21,10 @@ _$_MiraiText _$$_MiraiTextFromJson(Map<String, dynamic> json) => _$_MiraiText(
           $enumDecodeNullable(_$TextDirectionEnumMap, json['textDirection']),
       softWrap: json['softWrap'] as bool?,
       overflow: $enumDecodeNullable(_$TextOverflowEnumMap, json['overflow']),
-      textScaleFactor: (json['textScaleFactor'] as num?)?.toDouble(),
+      textScaler: json['textScaler'] == null
+          ? null
+          : MiraiTextScaler.fromJson(
+              json['textScaler'] as Map<String, dynamic>),
       maxLines: json['maxLines'] as int?,
       semanticsLabel: json['semanticsLabel'] as String?,
       textWidthBasis:
@@ -28,7 +32,7 @@ _$_MiraiText _$$_MiraiTextFromJson(Map<String, dynamic> json) => _$_MiraiText(
       selectionColor: json['selectionColor'] as String?,
     );
 
-Map<String, dynamic> _$$_MiraiTextToJson(_$_MiraiText instance) =>
+Map<String, dynamic> _$$MiraiTextImplToJson(_$MiraiTextImpl instance) =>
     <String, dynamic>{
       'data': instance.data,
       'children': instance.children,
@@ -37,7 +41,7 @@ Map<String, dynamic> _$$_MiraiTextToJson(_$_MiraiText instance) =>
       'textDirection': _$TextDirectionEnumMap[instance.textDirection],
       'softWrap': instance.softWrap,
       'overflow': _$TextOverflowEnumMap[instance.overflow],
-      'textScaleFactor': instance.textScaleFactor,
+      'textScaler': instance.textScaler,
       'maxLines': instance.maxLines,
       'semanticsLabel': instance.semanticsLabel,
       'textWidthBasis': _$TextWidthBasisEnumMap[instance.textWidthBasis],
@@ -70,8 +74,8 @@ const _$TextWidthBasisEnumMap = {
   TextWidthBasis.longestLine: 'longestLine',
 };
 
-_$_MiraiTextSpan _$$_MiraiTextSpanFromJson(Map<String, dynamic> json) =>
-    _$_MiraiTextSpan(
+_$MiraiTextSpanImpl _$$MiraiTextSpanImplFromJson(Map<String, dynamic> json) =>
+    _$MiraiTextSpanImpl(
       data: json['data'] as String?,
       style: json['style'] == null
           ? null
@@ -79,7 +83,7 @@ _$_MiraiTextSpan _$$_MiraiTextSpanFromJson(Map<String, dynamic> json) =>
       onTap: json['onTap'] as Map<String, dynamic>?,
     );
 
-Map<String, dynamic> _$$_MiraiTextSpanToJson(_$_MiraiTextSpan instance) =>
+Map<String, dynamic> _$$MiraiTextSpanImplToJson(_$MiraiTextSpanImpl instance) =>
     <String, dynamic>{
       'data': instance.data,
       'style': instance.style,
diff --git a/packages/mirai/lib/src/parsers/mirai_text/mirai_text_parser.dart b/packages/mirai/lib/src/parsers/mirai_text/mirai_text_parser.dart
index bdf26cac..cc5d7a07 100644
--- a/packages/mirai/lib/src/parsers/mirai_text/mirai_text_parser.dart
+++ b/packages/mirai/lib/src/parsers/mirai_text/mirai_text_parser.dart
@@ -2,6 +2,7 @@ import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:mirai/src/framework/framework.dart';
 import 'package:mirai/src/parsers/mirai_text/mirai_text.dart';
+import 'package:mirai/src/parsers/mirai_text_scaler/mirai_text_scaler.dart';
 import 'package:mirai/src/parsers/mirai_text_style/mirai_text_style.dart';
 import 'package:mirai/src/utils/color_utils.dart';
 import 'package:mirai/src/utils/widget_type.dart';
@@ -37,7 +38,7 @@ class MiraiTextParser extends MiraiParser<MiraiText> {
       textDirection: model.textDirection,
       softWrap: model.softWrap,
       overflow: model.overflow,
-      textScaleFactor: model.textScaleFactor,
+      textScaler: model.textScaler?.parse,
       maxLines: model.maxLines,
       semanticsLabel: model.semanticsLabel,
       textWidthBasis: model.textWidthBasis,
diff --git a/packages/mirai/lib/src/parsers/mirai_text_scaler/mirai_text_scaler.dart b/packages/mirai/lib/src/parsers/mirai_text_scaler/mirai_text_scaler.dart
new file mode 100644
index 00000000..6bdf2fab
--- /dev/null
+++ b/packages/mirai/lib/src/parsers/mirai_text_scaler/mirai_text_scaler.dart
@@ -0,0 +1,24 @@
+import 'package:flutter/material.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'mirai_text_scaler.freezed.dart';
+part 'mirai_text_scaler.g.dart';
+
+@freezed
+class MiraiTextScaler with _$MiraiTextScaler {
+  const factory MiraiTextScaler({
+    double? textScaleFactor,
+  }) = _MiraiTextScaler;
+
+  factory MiraiTextScaler.fromJson(Map<String, dynamic> json) =>
+      _$MiraiTextScalerFromJson(json);
+}
+
+extension MiraiTextScalerParser on MiraiTextScaler {
+  TextScaler? get parse {
+    if (textScaleFactor != null) {
+      return TextScaler.linear(textScaleFactor!);
+    }
+    return TextScaler.noScaling;
+  }
+}
diff --git a/packages/mirai/lib/src/parsers/mirai_text_scaler/mirai_text_scaler.freezed.dart b/packages/mirai/lib/src/parsers/mirai_text_scaler/mirai_text_scaler.freezed.dart
new file mode 100644
index 00000000..535ba043
--- /dev/null
+++ b/packages/mirai/lib/src/parsers/mirai_text_scaler/mirai_text_scaler.freezed.dart
@@ -0,0 +1,154 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'mirai_text_scaler.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
+
+MiraiTextScaler _$MiraiTextScalerFromJson(Map<String, dynamic> json) {
+  return _MiraiTextScaler.fromJson(json);
+}
+
+/// @nodoc
+mixin _$MiraiTextScaler {
+  double? get textScaleFactor => throw _privateConstructorUsedError;
+
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+  @JsonKey(ignore: true)
+  $MiraiTextScalerCopyWith<MiraiTextScaler> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $MiraiTextScalerCopyWith<$Res> {
+  factory $MiraiTextScalerCopyWith(
+          MiraiTextScaler value, $Res Function(MiraiTextScaler) then) =
+      _$MiraiTextScalerCopyWithImpl<$Res, MiraiTextScaler>;
+  @useResult
+  $Res call({double? textScaleFactor});
+}
+
+/// @nodoc
+class _$MiraiTextScalerCopyWithImpl<$Res, $Val extends MiraiTextScaler>
+    implements $MiraiTextScalerCopyWith<$Res> {
+  _$MiraiTextScalerCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? textScaleFactor = freezed,
+  }) {
+    return _then(_value.copyWith(
+      textScaleFactor: freezed == textScaleFactor
+          ? _value.textScaleFactor
+          : textScaleFactor // ignore: cast_nullable_to_non_nullable
+              as double?,
+    ) as $Val);
+  }
+}
+
+/// @nodoc
+abstract class _$$MiraiTextScalerImplCopyWith<$Res>
+    implements $MiraiTextScalerCopyWith<$Res> {
+  factory _$$MiraiTextScalerImplCopyWith(_$MiraiTextScalerImpl value,
+          $Res Function(_$MiraiTextScalerImpl) then) =
+      __$$MiraiTextScalerImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call({double? textScaleFactor});
+}
+
+/// @nodoc
+class __$$MiraiTextScalerImplCopyWithImpl<$Res>
+    extends _$MiraiTextScalerCopyWithImpl<$Res, _$MiraiTextScalerImpl>
+    implements _$$MiraiTextScalerImplCopyWith<$Res> {
+  __$$MiraiTextScalerImplCopyWithImpl(
+      _$MiraiTextScalerImpl _value, $Res Function(_$MiraiTextScalerImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? textScaleFactor = freezed,
+  }) {
+    return _then(_$MiraiTextScalerImpl(
+      textScaleFactor: freezed == textScaleFactor
+          ? _value.textScaleFactor
+          : textScaleFactor // ignore: cast_nullable_to_non_nullable
+              as double?,
+    ));
+  }
+}
+
+/// @nodoc
+@JsonSerializable()
+class _$MiraiTextScalerImpl implements _MiraiTextScaler {
+  const _$MiraiTextScalerImpl({this.textScaleFactor});
+
+  factory _$MiraiTextScalerImpl.fromJson(Map<String, dynamic> json) =>
+      _$$MiraiTextScalerImplFromJson(json);
+
+  @override
+  final double? textScaleFactor;
+
+  @override
+  String toString() {
+    return 'MiraiTextScaler(textScaleFactor: $textScaleFactor)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$MiraiTextScalerImpl &&
+            (identical(other.textScaleFactor, textScaleFactor) ||
+                other.textScaleFactor == textScaleFactor));
+  }
+
+  @JsonKey(ignore: true)
+  @override
+  int get hashCode => Object.hash(runtimeType, textScaleFactor);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$MiraiTextScalerImplCopyWith<_$MiraiTextScalerImpl> get copyWith =>
+      __$$MiraiTextScalerImplCopyWithImpl<_$MiraiTextScalerImpl>(
+          this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$MiraiTextScalerImplToJson(
+      this,
+    );
+  }
+}
+
+abstract class _MiraiTextScaler implements MiraiTextScaler {
+  const factory _MiraiTextScaler({final double? textScaleFactor}) =
+      _$MiraiTextScalerImpl;
+
+  factory _MiraiTextScaler.fromJson(Map<String, dynamic> json) =
+      _$MiraiTextScalerImpl.fromJson;
+
+  @override
+  double? get textScaleFactor;
+  @override
+  @JsonKey(ignore: true)
+  _$$MiraiTextScalerImplCopyWith<_$MiraiTextScalerImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}
diff --git a/packages/mirai/lib/src/parsers/mirai_text_scaler/mirai_text_scaler.g.dart b/packages/mirai/lib/src/parsers/mirai_text_scaler/mirai_text_scaler.g.dart
new file mode 100644
index 00000000..1875f082
--- /dev/null
+++ b/packages/mirai/lib/src/parsers/mirai_text_scaler/mirai_text_scaler.g.dart
@@ -0,0 +1,19 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'mirai_text_scaler.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_$MiraiTextScalerImpl _$$MiraiTextScalerImplFromJson(
+        Map<String, dynamic> json) =>
+    _$MiraiTextScalerImpl(
+      textScaleFactor: (json['textScaleFactor'] as num?)?.toDouble(),
+    );
+
+Map<String, dynamic> _$$MiraiTextScalerImplToJson(
+        _$MiraiTextScalerImpl instance) =>
+    <String, dynamic>{
+      'textScaleFactor': instance.textScaleFactor,
+    };