diff --git a/bin/react_18_upgrade.dart b/bin/react_18_upgrade.dart
new file mode 100644
index 00000000..7485030c
--- /dev/null
+++ b/bin/react_18_upgrade.dart
@@ -0,0 +1,15 @@
+// Copyright 2025 Workiva Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+export 'package:over_react_codemod/src/executables/react_18_upgrade.dart';
diff --git a/lib/src/executables/react_18_upgrade.dart b/lib/src/executables/react_18_upgrade.dart
new file mode 100644
index 00000000..dd882f27
--- /dev/null
+++ b/lib/src/executables/react_18_upgrade.dart
@@ -0,0 +1,91 @@
+// Copyright 2025 Workiva Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import 'dart:io';
+
+import 'package:args/args.dart';
+import 'package:codemod/codemod.dart';
+import 'package:over_react_codemod/src/rmui_bundle_update_suggestors/dart_script_updater.dart';
+import 'package:over_react_codemod/src/rmui_bundle_update_suggestors/html_script_updater.dart';
+import 'package:over_react_codemod/src/util.dart';
+
+const _changesRequiredOutput = """
+  To update your code, run the following commands in your repository:
+  dart pub global activate over_react_codemod
+  dart pub global run over_react_codemod:react_18_upgrade
+""";
+
+/// Updates React JS paths in HTML and Dart files from the React 17 versions to the React 18 versions.
+void main(List<String> args) async {
+  final parser = ArgParser.allowAnything();
+
+  final parsedArgs = parser.parse(args);
+
+  // Work around allowAnything not allowing you to pass flags.
+  if (parsedArgs.arguments.contains('--help')) {
+    // Print command description; flags and other output will get printed via runInteractiveCodemodSequence.
+    print(
+        'Updates React JS paths in HTML and Dart files from the React 17 versions to the React 18 versions.\n');
+  }
+
+  exitCode = await runInteractiveCodemodSequence(
+    allHtmlPathsIncludingTemplates(),
+    [
+      // Update react.js bundle files to React 18 versions in html files
+      ...react17to18ReactJsScriptNames.keys.map((key) => HtmlScriptUpdater(
+          key, react17to18ReactJsScriptNames[key]!,
+          updateAttributes: false)),
+      // Remove React 17 react_dom bundle files in html files
+      ...react17ReactDomJsOnlyScriptNames
+          .map((name) => HtmlScriptUpdater.remove(name)),
+    ],
+    defaultYes: true,
+    args: parsedArgs.rest,
+    additionalHelpOutput: parser.usage,
+    changesRequiredOutput: _changesRequiredOutput,
+  );
+
+  if (exitCode != 0) return;
+
+  exitCode = await runInteractiveCodemodSequence(
+    allDartPathsExceptHidden(),
+    [
+      // Update react.js bundle files to React 18 versions in Dart files
+      ...react17to18ReactJsScriptNames.keys.map((key) => DartScriptUpdater(
+          key, react17to18ReactJsScriptNames[key]!,
+          updateAttributes: false)),
+      // Remove React 17 react_dom bundle files in Dart files
+      ...react17ReactDomJsOnlyScriptNames
+          .map((name) => DartScriptUpdater.remove(name)),
+    ],
+    defaultYes: true,
+    args: parsedArgs.rest,
+    additionalHelpOutput: parser.usage,
+    changesRequiredOutput: _changesRequiredOutput,
+  );
+}
+
+const reactPath = 'packages/react/';
+
+const react17to18ReactJsScriptNames = {
+  '${reactPath}react.js': '${reactPath}js/react.dev.js',
+  '${reactPath}react_with_addons.js': '${reactPath}js/react.dev.js',
+  '${reactPath}react_prod.js': '${reactPath}js/react.min.js',
+  '${reactPath}react_with_react_dom_prod.js': '${reactPath}js/react.min.js',
+};
+
+const react17ReactDomJsOnlyScriptNames = [
+  '${reactPath}react_dom.js',
+  '${reactPath}react_dom_prod.js',
+];
diff --git a/lib/src/rmui_bundle_update_suggestors/constants.dart b/lib/src/rmui_bundle_update_suggestors/constants.dart
index b8fe71e0..33e532e5 100644
--- a/lib/src/rmui_bundle_update_suggestors/constants.dart
+++ b/lib/src/rmui_bundle_update_suggestors/constants.dart
@@ -53,7 +53,9 @@ class Link {
 
   /// A pattern for finding a link tag with a matching path.
   RegExp get pattern => RegExp(
-      r'<link[^>]*href="(?<path_prefix>[^"]*)' + pathSubpattern + r'"[^>]*>');
+      r'(?<preceding_whitespace>[^\S\r\n]*)<link[^>]*href="(?<path_prefix>[^"]*)' +
+          pathSubpattern +
+          r'"[^>]*>(?<trailing_new_line>\n?)');
 
   @override
   String toString() =>
diff --git a/lib/src/rmui_bundle_update_suggestors/dart_script_updater.dart b/lib/src/rmui_bundle_update_suggestors/dart_script_updater.dart
index b0929c28..3588a8f9 100644
--- a/lib/src/rmui_bundle_update_suggestors/dart_script_updater.dart
+++ b/lib/src/rmui_bundle_update_suggestors/dart_script_updater.dart
@@ -28,7 +28,20 @@ class DartScriptUpdater extends RecursiveAstVisitor<void>
   final String existingScriptPath;
   final String newScriptPath;
 
-  DartScriptUpdater(this.existingScriptPath, this.newScriptPath);
+  /// Whether or not to update attributes on script/link tags (like type/crossorigin)
+  /// while also updating the script path.
+  final bool updateAttributes;
+  final bool removeTag;
+
+  DartScriptUpdater(this.existingScriptPath, this.newScriptPath,
+      {this.updateAttributes = true})
+      : removeTag = false;
+
+  /// Use this constructor to remove the whole tag instead of updating it.
+  DartScriptUpdater.remove(this.existingScriptPath)
+      : removeTag = true,
+        updateAttributes = false,
+        newScriptPath = 'will be ignored';
 
   @override
   void visitSimpleStringLiteral(SimpleStringLiteral node) {
@@ -39,74 +52,107 @@ class DartScriptUpdater extends RecursiveAstVisitor<void>
       ...Script(pathSubpattern: existingScriptPath)
           .pattern
           .allMatches(stringValue),
-      ...Script(pathSubpattern: newScriptPath).pattern.allMatches(stringValue)
+      ...?(!removeTag
+          ? Script(pathSubpattern: newScriptPath)
+              .pattern
+              .allMatches(stringValue)
+          : null)
     ];
     final relevantLinkTags = [
       ...Link(pathSubpattern: existingScriptPath)
           .pattern
           .allMatches(stringValue),
-      ...Link(pathSubpattern: newScriptPath).pattern.allMatches(stringValue)
+      ...?(!removeTag
+          ? Link(pathSubpattern: newScriptPath).pattern.allMatches(stringValue)
+          : null)
     ];
 
     // Do not update if neither the existingScriptPath nor newScriptPath are in the file.
     if (relevantScriptTags.isEmpty && relevantLinkTags.isEmpty) return;
 
-    // Add type="module" attribute to script tag.
-    for (final scriptTagMatch in relevantScriptTags) {
-      final scriptTag = scriptTagMatch.group(0);
-      if (scriptTag == null) continue;
-      final typeAttributes = getAttributePattern('type').allMatches(scriptTag);
-      if (typeAttributes.isNotEmpty) {
-        final attribute = typeAttributes.first;
-        final value = attribute.group(1);
-        if (value == 'module') {
-          continue;
+    if (removeTag) {
+      for (final tag in [...relevantScriptTags, ...relevantLinkTags]) {
+        final tagEnd = node.offset + tag.end;
+        final tagStart = node.offset + tag.start;
+        final possibleCommaEnd = node.literal.next.toString() == ',' ? 1 : 0;
+        final isTagSameAsNode =
+            // Check if the only difference between [tag] and [node] is the quotes around [node].
+            tagStart - node.offset <= 1 && node.end - tagEnd <= 1;
+
+        yieldPatch(
+          '',
+          // If [tag] spans the whole string literal in [node], then also include
+          // the quotes and comma in the removal.
+          isTagSameAsNode
+              // Remove from the end of the previous token to take any preceding newline with it,
+              // so that we don't leave behind an empty line.
+              ? node.beginToken.previous?.end ?? node.offset
+              : tagStart,
+          isTagSameAsNode ? (node.end + possibleCommaEnd) : tagEnd,
+        );
+      }
+      return;
+    }
+
+    if (updateAttributes) {
+      // Add type="module" attribute to script tag.
+      for (final scriptTagMatch in relevantScriptTags) {
+        final scriptTag = scriptTagMatch.group(0);
+        if (scriptTag == null) continue;
+        final typeAttributes =
+            getAttributePattern('type').allMatches(scriptTag);
+        if (typeAttributes.isNotEmpty) {
+          final attribute = typeAttributes.first;
+          final value = attribute.group(1);
+          if (value == 'module') {
+            continue;
+          } else {
+            // If the value of the type attribute is not "module", overwrite it.
+            yieldPatch(
+              typeModuleAttribute,
+              node.offset + scriptTagMatch.start + attribute.start,
+              node.offset + scriptTagMatch.start + attribute.end,
+            );
+          }
         } else {
-          // If the value of the type attribute is not "module", overwrite it.
+          // If the type attribute does not exist, add it.
+          final srcAttribute = getAttributePattern('src').allMatches(scriptTag);
           yieldPatch(
-            typeModuleAttribute,
-            node.offset + scriptTagMatch.start + attribute.start,
-            node.offset + scriptTagMatch.start + attribute.end,
+            ' ${typeModuleAttribute}',
+            node.offset + scriptTagMatch.start + srcAttribute.first.end,
+            node.offset + scriptTagMatch.start + srcAttribute.first.end,
           );
         }
-      } else {
-        // If the type attribute does not exist, add it.
-        final srcAttribute = getAttributePattern('src').allMatches(scriptTag);
-        yieldPatch(
-          ' ${typeModuleAttribute}',
-          node.offset + scriptTagMatch.start + srcAttribute.first.end,
-          node.offset + scriptTagMatch.start + srcAttribute.first.end,
-        );
       }
-    }
 
-    // Add crossorigin="" attribute to link tag.
-    for (final linkTagMatch in relevantLinkTags) {
-      final linkTag = linkTagMatch.group(0);
-      if (linkTag == null) continue;
-      final crossOriginAttributes =
-          getAttributePattern('crossorigin').allMatches(linkTag);
-      if (crossOriginAttributes.isNotEmpty) {
-        final attribute = crossOriginAttributes.first;
-        final value = attribute.group(1);
-        if (value == '') {
-          continue;
+      // Add crossorigin="" attribute to link tag.
+      for (final linkTagMatch in relevantLinkTags) {
+        final linkTag = linkTagMatch.group(0);
+        if (linkTag == null) continue;
+        final crossOriginAttributes =
+            getAttributePattern('crossorigin').allMatches(linkTag);
+        if (crossOriginAttributes.isNotEmpty) {
+          final attribute = crossOriginAttributes.first;
+          final value = attribute.group(1);
+          if (value == '') {
+            continue;
+          } else {
+            // If the value of the crossorigin attribute is not "", overwrite it.
+            yieldPatch(
+              crossOriginAttribute,
+              node.offset + linkTagMatch.start + attribute.start,
+              node.offset + linkTagMatch.start + attribute.end,
+            );
+          }
         } else {
-          // If the value of the crossorigin attribute is not "", overwrite it.
+          // If the crossorigin attribute does not exist, add it.
+          final hrefAttribute = getAttributePattern('href').allMatches(linkTag);
           yieldPatch(
-            crossOriginAttribute,
-            node.offset + linkTagMatch.start + attribute.start,
-            node.offset + linkTagMatch.start + attribute.end,
+            ' ${crossOriginAttribute}',
+            node.offset + linkTagMatch.start + hrefAttribute.first.end,
+            node.offset + linkTagMatch.start + hrefAttribute.first.end,
           );
         }
-      } else {
-        // If the crossorigin attribute does not exist, add it.
-        final hrefAttribute = getAttributePattern('href').allMatches(linkTag);
-        yieldPatch(
-          ' ${crossOriginAttribute}',
-          node.offset + linkTagMatch.start + hrefAttribute.first.end,
-          node.offset + linkTagMatch.start + hrefAttribute.first.end,
-        );
       }
     }
 
diff --git a/lib/src/rmui_bundle_update_suggestors/html_script_updater.dart b/lib/src/rmui_bundle_update_suggestors/html_script_updater.dart
index ea337f8b..61576227 100644
--- a/lib/src/rmui_bundle_update_suggestors/html_script_updater.dart
+++ b/lib/src/rmui_bundle_update_suggestors/html_script_updater.dart
@@ -24,24 +24,41 @@ class HtmlScriptUpdater {
   final String existingScriptPath;
   final String newScriptPath;
 
-  HtmlScriptUpdater(this.existingScriptPath, this.newScriptPath);
+  /// Whether or not to update attributes on script/link tags (like type/crossorigin)
+  /// while also updating the script path.
+  final bool updateAttributes;
+  final bool removeTag;
+
+  HtmlScriptUpdater(this.existingScriptPath, this.newScriptPath,
+      {this.updateAttributes = true})
+      : removeTag = false;
+
+  /// Use this constructor to remove the whole tag instead of updating it.
+  HtmlScriptUpdater.remove(this.existingScriptPath)
+      : removeTag = true,
+        updateAttributes = false,
+        newScriptPath = 'will be ignored';
 
   Stream<Patch> call(FileContext context) async* {
     final relevantScriptTags = [
       ...Script(pathSubpattern: existingScriptPath)
           .pattern
           .allMatches(context.sourceText),
-      ...Script(pathSubpattern: newScriptPath)
-          .pattern
-          .allMatches(context.sourceText)
+      ...?(!removeTag
+          ? Script(pathSubpattern: newScriptPath)
+              .pattern
+              .allMatches(context.sourceText)
+          : null)
     ];
     final relevantLinkTags = [
       ...Link(pathSubpattern: existingScriptPath)
           .pattern
           .allMatches(context.sourceText),
-      ...Link(pathSubpattern: newScriptPath)
-          .pattern
-          .allMatches(context.sourceText)
+      ...?(!removeTag
+          ? Link(pathSubpattern: newScriptPath)
+              .pattern
+              .allMatches(context.sourceText)
+          : null)
     ];
 
     // Do not update if neither the existingScriptPath nor newScriptPath are in the file.
@@ -49,75 +66,90 @@ class HtmlScriptUpdater {
 
     final patches = <Patch>[];
 
-    // Add type="module" attribute to script tag.
-    for (final scriptTagMatch in relevantScriptTags) {
-      final scriptTag = scriptTagMatch.group(0);
-      if (scriptTag == null) continue;
-      final typeAttributes = getAttributePattern('type').allMatches(scriptTag);
-      if (typeAttributes.isNotEmpty) {
-        final attribute = typeAttributes.first;
-        final value = attribute.group(1);
-        if (value == 'module') {
-          continue;
-        } else {
-          // If the value of the type attribute is not "module", overwrite it.
-          patches.add(Patch(
-            typeModuleAttribute,
-            scriptTagMatch.start + attribute.start,
-            scriptTagMatch.start + attribute.end,
-          ));
-        }
-      } else {
-        // If the type attribute does not exist, add it.
-        final srcAttribute = getAttributePattern('src').allMatches(scriptTag);
+    if (removeTag) {
+      for (final tag in [...relevantScriptTags, ...relevantLinkTags]) {
         patches.add(Patch(
-          ' ${typeModuleAttribute}',
-          scriptTagMatch.start + srcAttribute.first.end,
-          scriptTagMatch.start + srcAttribute.first.end,
+          '',
+          tag.start,
+          tag.end,
         ));
       }
-    }
+    } else {
+      if (updateAttributes) {
+        // Add type="module" attribute to script tag.
+        for (final scriptTagMatch in relevantScriptTags) {
+          final scriptTag = scriptTagMatch.group(0);
+          if (scriptTag == null) continue;
+          final typeAttributes =
+              getAttributePattern('type').allMatches(scriptTag);
+          if (typeAttributes.isNotEmpty) {
+            final attribute = typeAttributes.first;
+            final value = attribute.group(1);
+            if (value == 'module') {
+              continue;
+            } else {
+              // If the value of the type attribute is not "module", overwrite it.
+              patches.add(Patch(
+                typeModuleAttribute,
+                scriptTagMatch.start + attribute.start,
+                scriptTagMatch.start + attribute.end,
+              ));
+            }
+          } else {
+            // If the type attribute does not exist, add it.
+            final srcAttribute =
+                getAttributePattern('src').allMatches(scriptTag);
+            patches.add(Patch(
+              ' ${typeModuleAttribute}',
+              scriptTagMatch.start + srcAttribute.first.end,
+              scriptTagMatch.start + srcAttribute.first.end,
+            ));
+          }
+        }
 
-    // Add crossorigin="" attribute to link tag.
-    for (final linkTagToMatch in relevantLinkTags) {
-      final linkTag = linkTagToMatch.group(0);
-      if (linkTag == null) continue;
-      final crossOriginAttributes =
-          getAttributePattern('crossorigin').allMatches(linkTag);
-      if (crossOriginAttributes.isNotEmpty) {
-        final attribute = crossOriginAttributes.first;
-        final value = attribute.group(1);
-        if (value == '') {
-          continue;
-        } else {
-          // If the value of the crossorigin attribute is not "", overwrite it.
-          patches.add(Patch(
-            crossOriginAttribute,
-            linkTagToMatch.start + attribute.start,
-            linkTagToMatch.start + attribute.end,
-          ));
+        // Add crossorigin="" attribute to link tag.
+        for (final linkTagToMatch in relevantLinkTags) {
+          final linkTag = linkTagToMatch.group(0);
+          if (linkTag == null) continue;
+          final crossOriginAttributes =
+              getAttributePattern('crossorigin').allMatches(linkTag);
+          if (crossOriginAttributes.isNotEmpty) {
+            final attribute = crossOriginAttributes.first;
+            final value = attribute.group(1);
+            if (value == '') {
+              continue;
+            } else {
+              // If the value of the crossorigin attribute is not "", overwrite it.
+              patches.add(Patch(
+                crossOriginAttribute,
+                linkTagToMatch.start + attribute.start,
+                linkTagToMatch.start + attribute.end,
+              ));
+            }
+          } else {
+            // If the crossorigin attribute does not exist, add it.
+            final hrefAttribute =
+                getAttributePattern('href').allMatches(linkTag);
+            patches.add(Patch(
+              ' ${crossOriginAttribute}',
+              linkTagToMatch.start + hrefAttribute.first.end,
+              linkTagToMatch.start + hrefAttribute.first.end,
+            ));
+          }
         }
-      } else {
-        // If the crossorigin attribute does not exist, add it.
-        final hrefAttribute = getAttributePattern('href').allMatches(linkTag);
+      }
+
+      // Update existing path to new path.
+      final scriptMatches = existingScriptPath.allMatches(context.sourceText);
+      scriptMatches.forEach((match) async {
         patches.add(Patch(
-          ' ${crossOriginAttribute}',
-          linkTagToMatch.start + hrefAttribute.first.end,
-          linkTagToMatch.start + hrefAttribute.first.end,
+          newScriptPath,
+          match.start,
+          match.end,
         ));
-      }
+      });
     }
 
-    // Update existing path to new path.
-    final scriptMatches = existingScriptPath.allMatches(context.sourceText);
-    scriptMatches.forEach((match) async {
-      patches.add(Patch(
-        newScriptPath,
-        match.start,
-        match.end,
-      ));
-    });
-
     yield* Stream.fromIterable(patches);
   }
 }
diff --git a/lib/src/rmui_preparation_suggestors/constants.dart b/lib/src/rmui_preparation_suggestors/constants.dart
index 698af75c..8281e564 100644
--- a/lib/src/rmui_preparation_suggestors/constants.dart
+++ b/lib/src/rmui_preparation_suggestors/constants.dart
@@ -24,14 +24,18 @@ final rmuiBundleProd =
     ScriptToAdd(path: 'packages/react_material_ui/react-material-ui.umd.js');
 
 /// The script pattern for finding react-dart JS scripts.
-const reactJsScript = Script(pathSubpattern: r'packages/react/react\w*.js');
+const reactJsScript = Script(
+    pathSubpattern: r'packages/react/react\w*.js',
+    includeTrailingNewLine: false);
 
 /// A script that can be searched for via a script tag [pattern] for a
 /// specific path ([pathSubpattern]).
 class Script {
   final String pathSubpattern;
+  final bool includeTrailingNewLine;
 
-  const Script({required this.pathSubpattern});
+  const Script(
+      {required this.pathSubpattern, this.includeTrailingNewLine = true});
 
   /// A pattern for finding a script tag with a matching path,
   /// including preceding whitespace and any path prefix.
@@ -43,7 +47,8 @@ class Script {
   RegExp get pattern => RegExp(
       r'(?<preceding_whitespace>[^\S\r\n]*)<script.*src="(?<path_prefix>.*)' +
           pathSubpattern +
-          r'".*</script>');
+          r'".*</script>' +
+          (includeTrailingNewLine ? r'(?<trailing_new_line>\n?)' : ''));
 
   @override
   String toString() =>
diff --git a/pubspec.yaml b/pubspec.yaml
index 0bf527b2..5e46683c 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -55,3 +55,4 @@ executables:
   intl_message_migration:
   sort_intl:
   unify_package_rename:
+  react_18_upgrade:
diff --git a/test/executables/react_18_upgrade_test.dart b/test/executables/react_18_upgrade_test.dart
new file mode 100644
index 00000000..85924a9b
--- /dev/null
+++ b/test/executables/react_18_upgrade_test.dart
@@ -0,0 +1,206 @@
+// Copyright 2025 Workiva Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import 'package:over_react_codemod/src/util/package_util.dart';
+import 'package:path/path.dart' as p;
+import 'package:test/test.dart';
+import 'package:test_descriptor/test_descriptor.dart' as d;
+
+import 'mui_migration_test.dart';
+
+void main() {
+  group('react_18_upgrade executable', () {
+    final react18CodemodScript =
+        p.join(findPackageRootFor(p.current), 'bin/react_18_upgrade.dart');
+
+    group('updates script tags', () {
+      testCodemod('dev',
+          script: react18CodemodScript,
+          input: d.dir('project', [
+            d.file('dev.html', /*language=html*/ '''
+<script src="packages/react/react.js"></script>
+        <script src="packages/react/react_dom.js"></script>'''),
+            d.file('dev_with_addons.html', /*language=html*/ '''
+<script src="packages/react/react_with_addons.js"></script>
+        <script src="packages/react/react_dom.js"></script>'''),
+          ]),
+          expectedOutput: d.dir('project', [
+            d.file('dev.html', /*language=html*/ '''
+<script src="packages/react/js/react.dev.js"></script>
+'''),
+            d.file('dev_with_addons.html', /*language=html*/ '''
+<script src="packages/react/js/react.dev.js"></script>
+'''),
+          ]),
+          args: ['--yes-to-all']);
+
+      testCodemod('prod',
+          script: react18CodemodScript,
+          input: d.dir('project', [
+            d.file('prod.html', /*language=html*/ '''
+<script src="packages/react/react_prod.js"></script>
+        <script src="packages/react/react_dom_prod.js"></script>'''),
+            d.file('prod_with_addons.html', /*language=html*/ '''
+<script src="packages/react/react_with_react_dom_prod.js"></script>
+        <script src="packages/react/react_dom_prod.js"></script>''')
+          ]),
+          expectedOutput: d.dir('project', [
+            d.file('prod.html', /*language=html*/ '''
+<script src="packages/react/js/react.min.js"></script>
+'''),
+            d.file('prod_with_addons.html', /*language=html*/ '''
+<script src="packages/react/js/react.min.js"></script>
+''')
+          ]),
+          args: ['--yes-to-all']);
+    });
+
+    group('updates link tags', () {
+      testCodemod('dev',
+          script: react18CodemodScript,
+          input: d.dir('project', [
+            d.file('dev.html', /*language=html*/ '''
+<link href="packages/react/react.js">
+        <link href="packages/react/react_dom.js">'''),
+            d.file('dev_with_addons.html', /*language=html*/ '''
+<link href="packages/react/react_with_addons.js">
+        <link href="packages/react/react_dom.js">'''),
+          ]),
+          expectedOutput: d.dir('project', [
+            d.file('dev.html', /*language=html*/ '''
+<link href="packages/react/js/react.dev.js">
+'''),
+            d.file('dev_with_addons.html', /*language=html*/ '''
+<link href="packages/react/js/react.dev.js">
+'''),
+          ]),
+          args: ['--yes-to-all']);
+
+      testCodemod('prod',
+          script: react18CodemodScript,
+          input: d.dir('project', [
+            d.file('prod.html', /*language=html*/ '''
+<link href="packages/react/react_prod.js">
+        <link href="packages/react/react_dom_prod.js">'''),
+            d.file('prod_with_addons.html', /*language=html*/ '''
+<link href="packages/react/react_with_react_dom_prod.js">
+        <link href="packages/react/react_dom_prod.js">''')
+          ]),
+          expectedOutput: d.dir('project', [
+            d.file('prod.html', /*language=html*/ '''
+<link href="packages/react/js/react.min.js">
+'''),
+            d.file('prod_with_addons.html', /*language=html*/ '''
+<link href="packages/react/js/react.min.js">
+''')
+          ]),
+          args: ['--yes-to-all']);
+    });
+
+    group('in Dart files', () {
+      testCodemod('list',
+          script: react18CodemodScript,
+          input: d.dir('project', [
+            d.file('main.dart', /*language=dart*/ '''
+              List<String> _reactHtmlHeaders = const [
+                '<script src="packages/react/react.js"></script>',
+                '<script src="packages/react/react_dom.js"></script>',
+                '<link rel="preload" href="packages/react/react.js" as="script">',
+                '<link rel="preload" href="packages/react/react_dom.js" as="script">',
+              ];
+            ''')
+          ]),
+          expectedOutput: d.dir('project', [
+            d.file('main.dart', /*language=dart*/ '''
+              List<String> _reactHtmlHeaders = const [
+                '<script src="packages/react/js/react.dev.js"></script>',
+                '<link rel="preload" href="packages/react/js/react.dev.js" as="script">',
+              ];
+            ''')
+          ]),
+          args: ['--yes-to-all']);
+
+      testCodemod('string const',
+          script: react18CodemodScript,
+          input: d.dir('project', [
+            d.file('main.dart', '''
+              const expectedWithReact = \'\'\'
+                <!DOCTYPE html>
+                <html>
+                <head>
+                <title>{{testName}}</title>
+                <script src="packages/react/react_with_addons.js"></script>
+                <script src="packages/react/react_dom.js"></script>
+                <script src="packages/unify_ui/js/unify-ui.browser.dev.esm.js" type="module"></script>
+                <script src="packages/react_testing_library/js/react-testing-library.js"></script>
+                <!--In order to debug unit tests, use application/dart rather than x-dart-test-->
+                <!--<script type="application/dart" src="generated_runner_test.dart"></script>-->
+                {{testScript}}
+                <script src="packages/test/dart.js"></script>
+                </head>
+                <body></body>
+                </html>
+              \'\'\';
+            ''')
+          ]),
+          expectedOutput: d.dir('project', [
+            d.file('main.dart', '''
+              const expectedWithReact = \'\'\'
+                <!DOCTYPE html>
+                <html>
+                <head>
+                <title>{{testName}}</title>
+                <script src="packages/react/js/react.dev.js"></script>
+                <script src="packages/unify_ui/js/unify-ui.browser.dev.esm.js" type="module"></script>
+                <script src="packages/react_testing_library/js/react-testing-library.js"></script>
+                <!--In order to debug unit tests, use application/dart rather than x-dart-test-->
+                <!--<script type="application/dart" src="generated_runner_test.dart"></script>-->
+                {{testScript}}
+                <script src="packages/test/dart.js"></script>
+                </head>
+                <body></body>
+                </html>
+              \'\'\';
+            ''')
+          ]),
+          args: ['--yes-to-all']);
+    });
+
+    testCodemod('--fail-on-changes exits with 0 when no changes needed',
+        script: react18CodemodScript,
+        input: d.dir('project', [
+          d.file('dev.html', /*language=html*/ '''
+<script src="packages/react/js/react.dev.js"></script>'''),
+          d.file('dev_with_addons.html', /*language=html*/ '''
+<script src="packages/react/js/react.dev.js"></script>'''),
+          d.file('prod.html', /*language=html*/ '''
+<script src="packages/react/js/react.min.js"></script>'''),
+          d.file('prod_with_addons.html', /*language=html*/ '''
+<script src="packages/react/js/react.min.js"></script>''')
+        ]),
+        expectedOutput: d.dir('project', [
+          d.file('dev.html', /*language=html*/ '''
+<script src="packages/react/js/react.dev.js"></script>'''),
+          d.file('dev_with_addons.html', /*language=html*/ '''
+<script src="packages/react/js/react.dev.js"></script>'''),
+          d.file('prod.html', /*language=html*/ '''
+<script src="packages/react/js/react.min.js"></script>'''),
+          d.file('prod_with_addons.html', /*language=html*/ '''
+<script src="packages/react/js/react.min.js"></script>''')
+        ]),
+        args: ['--fail-on-changes'], body: (out, err) {
+      expect(out, contains('No changes needed.'));
+    });
+  });
+}
diff --git a/test/rmui_bundle_updater_suggestors/dart_script_updater_test.dart b/test/rmui_bundle_updater_suggestors/dart_script_updater_test.dart
index de1f64eb..833df717 100644
--- a/test/rmui_bundle_updater_suggestors/dart_script_updater_test.dart
+++ b/test/rmui_bundle_updater_suggestors/dart_script_updater_test.dart
@@ -284,5 +284,141 @@ void main() {
             ''',
       );
     });
+
+    test('string const', () async {
+      await testSuggestor(
+        expectedPatchCount: 2,
+        input: '''
+          const expectedWithReact = \'\'\'
+            <!DOCTYPE html>
+            <html>
+            <head>
+            <title>{{testName}}</title>
+            <script src="packages/react/react_with_addons.js"></script>
+            <script src="packages/react/react_dom.js"></script>
+            <script src="$rmuiBundleDev"></script>
+            <script src="packages/react_testing_library/js/react-testing-library.js"></script>
+            <!--In order to debug unit tests, use application/dart rather than x-dart-test-->
+            <!--<script type="application/dart" src="generated_runner_test.dart"></script>-->
+              {{testScript}}
+              <script src="packages/test/dart.js"></script>
+            </head>
+            <body></body>
+            </html>
+          \'\'\';
+        ''',
+        expectedOutput: '''
+          const expectedWithReact = \'\'\'
+            <!DOCTYPE html>
+            <html>
+            <head>
+            <title>{{testName}}</title>
+            <script src="packages/react/react_with_addons.js"></script>
+            <script src="packages/react/react_dom.js"></script>
+            <script src="$rmuiBundleDevUpdated" type="module"></script>
+            <script src="packages/react_testing_library/js/react-testing-library.js"></script>
+            <!--In order to debug unit tests, use application/dart rather than x-dart-test-->
+            <!--<script type="application/dart" src="generated_runner_test.dart"></script>-->
+              {{testScript}}
+              <script src="packages/test/dart.js"></script>
+            </head>
+            <body></body>
+            </html>
+          \'\'\';
+        ''',
+      );
+    });
+
+    test('updateAttributes arg', () async {
+      final updateSuggestor = getSuggestorTester(
+        DartScriptUpdater(rmuiBundleDev, rmuiBundleDevUpdated,
+            updateAttributes: false),
+      );
+
+      await updateSuggestor(
+        expectedPatchCount: 2,
+        input: '''
+              List<String> _reactHtmlHeaders = const [
+                '<script src="$rmuiBundleDev"></script>',
+                '<link rel="preload" href="$rmuiBundleDev" as="script">',
+              ];
+            ''',
+        expectedOutput: '''
+              List<String> _reactHtmlHeaders = const [
+                '<script src="$rmuiBundleDevUpdated"></script>',
+                '<link rel="preload" href="$rmuiBundleDevUpdated" as="script">',
+              ];
+            ''',
+      );
+    });
+
+    group('remove constructor', () {
+      final removeTagSuggestor =
+          getSuggestorTester(DartScriptUpdater.remove(rmuiBundleDev));
+
+      test('list', () async {
+        await removeTagSuggestor(
+          expectedPatchCount: 3,
+          input: '''
+              List<String> _reactHtmlHeaders = const [
+                '<script src="$rmuiBundleDev"></script>',
+                '<link rel="preload" href="$rmuiBundleDev" as="script">',
+                '<link rel="preload" href="/package/$rmuiBundleDev" as="script">',
+                '<script src="$rmuiBundleDevUpdated" type="module"></script>',
+                '<link rel="preload" href="$rmuiBundleDevUpdated" crossorigin="" as="script">',
+              ];
+            ''',
+          expectedOutput: '''
+              List<String> _reactHtmlHeaders = const [
+                '<script src="$rmuiBundleDevUpdated" type="module"></script>',
+                '<link rel="preload" href="$rmuiBundleDevUpdated" crossorigin="" as="script">',
+              ];
+            ''',
+        );
+      });
+
+      test('string const', () async {
+        await removeTagSuggestor(
+          expectedPatchCount: 1,
+          input: '''
+          const expectedWithReact = \'\'\'
+            <!DOCTYPE html>
+            <html>
+            <head>
+            <title>{{testName}}</title>
+            <script src="packages/react/react_with_addons.js"></script>
+            <script src="packages/react/react_dom.js"></script>
+            <script src="$rmuiBundleDev"></script>
+            <script src="packages/react_testing_library/js/react-testing-library.js"></script>
+            <!--In order to debug unit tests, use application/dart rather than x-dart-test-->
+            <!--<script type="application/dart" src="generated_runner_test.dart"></script>-->
+              {{testScript}}
+              <script src="packages/test/dart.js"></script>
+            </head>
+            <body></body>
+            </html>
+          \'\'\';
+        ''',
+          expectedOutput: '''
+          const expectedWithReact = \'\'\'
+            <!DOCTYPE html>
+            <html>
+            <head>
+            <title>{{testName}}</title>
+            <script src="packages/react/react_with_addons.js"></script>
+            <script src="packages/react/react_dom.js"></script>
+            <script src="packages/react_testing_library/js/react-testing-library.js"></script>
+            <!--In order to debug unit tests, use application/dart rather than x-dart-test-->
+            <!--<script type="application/dart" src="generated_runner_test.dart"></script>-->
+              {{testScript}}
+              <script src="packages/test/dart.js"></script>
+            </head>
+            <body></body>
+            </html>
+          \'\'\';
+        ''',
+        );
+      });
+    });
   });
 }
diff --git a/test/rmui_bundle_updater_suggestors/html_script_updater_test.dart b/test/rmui_bundle_updater_suggestors/html_script_updater_test.dart
index f7139991..a8378323 100644
--- a/test/rmui_bundle_updater_suggestors/html_script_updater_test.dart
+++ b/test/rmui_bundle_updater_suggestors/html_script_updater_test.dart
@@ -240,11 +240,11 @@ void main() {
         expectedPatchCount: 4,
         shouldDartfmtOutput: false,
         input: ''
-            '<script src="$rmuiBundleDev"></script>\n'
+            '<script src="/directory/$rmuiBundleDev"></script>\n'
             '<script src="$rmuiBundleProd"></script>\n'
             '',
         expectedOutput: ''
-            '<script src="$rmuiBundleDevUpdated" type="module"></script>\n'
+            '<script src="/directory/$rmuiBundleDevUpdated" type="module"></script>\n'
             '<script src="$rmuiBundleProdUpdated" type="module"></script>\n'
             '',
       );
@@ -264,5 +264,30 @@ void main() {
             '',
       );
     });
+
+    test('removeTag arg', () async {
+      final removeTagSuggestor =
+          getSuggestorTester(HtmlScriptUpdater.remove(rmuiBundleDev));
+
+      await removeTagSuggestor(
+        shouldDartfmtOutput: false,
+        input: ''
+            '<script src="$rmuiBundleDev"></script>\n'
+            '  <script src="$rmuiBundleDev"></script>\n'
+            '<script src="/something_else/$rmuiBundleDev"></script>\n'
+            '<link rel="preload" href="$rmuiBundleDev" as="script">\n'
+            '  <link rel="preload" href="$rmuiBundleDev" as="script">\n'
+            '<link rel="preload" href="${rmuiBundleDev}abc" as="script">\n'
+            '<script src="$rmuiBundleDevUpdated" type="module"></script>\n'
+            '<script src="${rmuiBundleDevUpdated}abc" type="module"></script>\n'
+            '<link rel="preload" href="$rmuiBundleDev" crossorigin="" as="script">\n'
+            '',
+        expectedOutput: ''
+            '<link rel="preload" href="${rmuiBundleDev}abc" as="script">\n'
+            '<script src="$rmuiBundleDevUpdated" type="module"></script>\n'
+            '<script src="${rmuiBundleDevUpdated}abc" type="module"></script>\n'
+            '',
+      );
+    });
   });
 }