diff --git a/plugins/editorconfig/common/BUILD.bazel b/plugins/editorconfig/common/BUILD.bazel
index f9d843f38289..372950dae620 100644
--- a/plugins/editorconfig/common/BUILD.bazel
+++ b/plugins/editorconfig/common/BUILD.bazel
@@ -22,6 +22,7 @@ jvm_library(
     visibility = ["//visibility:public"],
     deps = [
         # do not sort,
+        "//platform/util-ex",
         "@lib//:kotlin-stdlib",
         "//platform/analysis-api:analysis",
         "//platform/core-api:core",
@@ -32,6 +33,10 @@ jvm_library(
         "//platform/editor-ui-api:editor-ui",
         "//platform/code-style-api:codeStyle",
         "//platform/code-style-impl:codeStyle-impl",
+        "//platform/lang-api:lang",
+        "//platform/platform-impl:ide-impl",
+        "//platform/lang-impl",
+        "//platform/core-ui",
     ],
 )
 
@@ -47,6 +52,7 @@ jvm_library(
     runtime_deps = [
         # do not sort,
         ":common",
+        "//platform/util-ex:util-ex_test_lib",
         "//platform/analysis-api:analysis_test_lib",
         "//platform/core-api:core_test_lib",
         "//platform/util:util_test_lib",
@@ -56,6 +62,10 @@ jvm_library(
         "//platform/editor-ui-api:editor-ui_test_lib",
         "//platform/code-style-api:codeStyle_test_lib",
         "//platform/code-style-impl:codeStyle-impl_test_lib",
+        "//platform/lang-api:lang_test_lib",
+        "//platform/platform-impl:ide-impl_test_lib",
+        "//platform/lang-impl:lang-impl_test_lib",
+        "//platform/core-ui:core-ui_test_lib",
     ],
 )
 ### auto-generated section `build intellij.editorconfig.common` end
diff --git a/plugins/editorconfig/common/intellij.editorconfig.common.iml b/plugins/editorconfig/common/intellij.editorconfig.common.iml
index c1b3171f9cc2..def6bcc7a0ee 100644
--- a/plugins/editorconfig/common/intellij.editorconfig.common.iml
+++ b/plugins/editorconfig/common/intellij.editorconfig.common.iml
@@ -8,6 +8,7 @@
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" packagePrefix="com.intellij.editorconfig.common" />
     </content>
     <orderEntry type="inheritedJdk" />
+    <orderEntry type="module" module-name="intellij.platform.util.ex" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="kotlin-stdlib" level="project" />
     <orderEntry type="module" module-name="intellij.platform.analysis" />
@@ -19,5 +20,9 @@
     <orderEntry type="module" module-name="intellij.platform.editor.ui" />
     <orderEntry type="module" module-name="intellij.platform.codeStyle" />
     <orderEntry type="module" module-name="intellij.platform.codeStyle.impl" />
+    <orderEntry type="module" module-name="intellij.platform.lang" />
+    <orderEntry type="module" module-name="intellij.platform.ide.impl" />
+    <orderEntry type="module" module-name="intellij.platform.lang.impl" />
+    <orderEntry type="module" module-name="intellij.platform.core.ui" />
   </component>
 </module>
\ No newline at end of file
diff --git a/plugins/editorconfig/common/resources/intellij.editorconfig.common.xml b/plugins/editorconfig/common/resources/intellij.editorconfig.common.xml
index 1767bb9f7119..ac83db22b5ea 100644
--- a/plugins/editorconfig/common/resources/intellij.editorconfig.common.xml
+++ b/plugins/editorconfig/common/resources/intellij.editorconfig.common.xml
@@ -12,5 +12,13 @@
     <lang.formatter language="EditorConfig"
                     implementationClass="com.intellij.editorconfig.common.formatting.EditorConfigFormattingModelBuilder"/>
     <lang.commenter language="EditorConfig" implementationClass="com.intellij.editorconfig.common.lang.EditorConfigCommenter"/>
+    <lang.syntaxHighlighterFactory language="EditorConfig"
+                                   implementationClass="com.intellij.editorconfig.common.highlighting.EditorConfigSyntaxHighlighterFactory"/>
+
+    <statementUpDownMover implementation="com.intellij.editorconfig.common.editor.EditorConfigStatementUpDownMover"/>
+    <moveLeftRightHandler language="EditorConfig"
+                          implementationClass="com.intellij.editorconfig.common.editor.EditorConfigMoveElementLeftRightHandler"/>
+    <enterHandlerDelegate implementation="com.intellij.editorconfig.common.editor.EnterInEditorConfigFileHandler"/>
+    <typedHandler implementation="com.intellij.editorconfig.common.editor.EditorConfigTypedHandlerDelegate"/>
   </extensions>
 </idea-plugin>
diff --git a/plugins/editorconfig/frontend/src/editor/EditorConfigMoveElementLeftRightHandler.kt b/plugins/editorconfig/common/src/editor/EditorConfigMoveElementLeftRightHandler.kt
similarity index 94%
rename from plugins/editorconfig/frontend/src/editor/EditorConfigMoveElementLeftRightHandler.kt
rename to plugins/editorconfig/common/src/editor/EditorConfigMoveElementLeftRightHandler.kt
index ba3386b20dfb..ec538efe8166 100644
--- a/plugins/editorconfig/frontend/src/editor/EditorConfigMoveElementLeftRightHandler.kt
+++ b/plugins/editorconfig/common/src/editor/EditorConfigMoveElementLeftRightHandler.kt
@@ -1,5 +1,5 @@
 // Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
-package com.intellij.editorconfig.frontend.editor
+package com.intellij.editorconfig.common.editor
 
 import com.intellij.codeInsight.editorActions.moveLeftRight.MoveElementLeftRightHandler
 import com.intellij.editorconfig.common.syntax.psi.EditorConfigEnumerationPattern
diff --git a/plugins/editorconfig/frontend/src/editor/EditorConfigStatementUpDownMover.kt b/plugins/editorconfig/common/src/editor/EditorConfigStatementUpDownMover.kt
similarity index 98%
rename from plugins/editorconfig/frontend/src/editor/EditorConfigStatementUpDownMover.kt
rename to plugins/editorconfig/common/src/editor/EditorConfigStatementUpDownMover.kt
index 32a86307d285..b7b3f642b009 100644
--- a/plugins/editorconfig/frontend/src/editor/EditorConfigStatementUpDownMover.kt
+++ b/plugins/editorconfig/common/src/editor/EditorConfigStatementUpDownMover.kt
@@ -1,5 +1,5 @@
 // Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
-package com.intellij.editorconfig.frontend.editor
+package com.intellij.editorconfig.common.editor
 
 import com.intellij.codeInsight.editorActions.moveUpDown.LineMover
 import com.intellij.codeInsight.editorActions.moveUpDown.LineRange
diff --git a/plugins/editorconfig/frontend/src/editor/EditorConfigTypedHandlerDelegate.kt b/plugins/editorconfig/common/src/editor/EditorConfigTypedHandlerDelegate.kt
similarity index 98%
rename from plugins/editorconfig/frontend/src/editor/EditorConfigTypedHandlerDelegate.kt
rename to plugins/editorconfig/common/src/editor/EditorConfigTypedHandlerDelegate.kt
index 71365c1f2144..c7821a3005c2 100644
--- a/plugins/editorconfig/frontend/src/editor/EditorConfigTypedHandlerDelegate.kt
+++ b/plugins/editorconfig/common/src/editor/EditorConfigTypedHandlerDelegate.kt
@@ -1,5 +1,5 @@
 // Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
-package com.intellij.editorconfig.frontend.editor
+package com.intellij.editorconfig.common.editor
 
 import com.intellij.codeInsight.AutoPopupController
 import com.intellij.codeInsight.editorActions.TypedHandlerDelegate
diff --git a/plugins/editorconfig/frontend/src/editor/EnterInEditorConfigFileHandler.kt b/plugins/editorconfig/common/src/editor/EnterInEditorConfigFileHandler.kt
similarity index 97%
rename from plugins/editorconfig/frontend/src/editor/EnterInEditorConfigFileHandler.kt
rename to plugins/editorconfig/common/src/editor/EnterInEditorConfigFileHandler.kt
index 645b872c9839..946c892a09e3 100644
--- a/plugins/editorconfig/frontend/src/editor/EnterInEditorConfigFileHandler.kt
+++ b/plugins/editorconfig/common/src/editor/EnterInEditorConfigFileHandler.kt
@@ -1,5 +1,5 @@
 // Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
-package com.intellij.editorconfig.frontend.editor
+package com.intellij.editorconfig.common.editor
 
 import com.intellij.codeInsight.editorActions.enter.EnterHandlerDelegate
 import com.intellij.codeInsight.editorActions.enter.EnterHandlerDelegate.Result
diff --git a/plugins/editorconfig/frontend/src/highlighting/EditorConfigSyntaxHighlighter.kt b/plugins/editorconfig/common/src/highlighting/EditorConfigSyntaxHighlighter.kt
similarity index 96%
rename from plugins/editorconfig/frontend/src/highlighting/EditorConfigSyntaxHighlighter.kt
rename to plugins/editorconfig/common/src/highlighting/EditorConfigSyntaxHighlighter.kt
index 778ab548687e..12989079cdc5 100644
--- a/plugins/editorconfig/frontend/src/highlighting/EditorConfigSyntaxHighlighter.kt
+++ b/plugins/editorconfig/common/src/highlighting/EditorConfigSyntaxHighlighter.kt
@@ -1,5 +1,5 @@
 // Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
-package com.intellij.editorconfig.frontend.highlighting
+package com.intellij.editorconfig.common.highlighting
 
 import com.intellij.editorconfig.common.plugin.EditorConfigLexerFactory
 import com.intellij.editorconfig.common.syntax.psi.EditorConfigElementTypes
@@ -12,7 +12,7 @@ import com.intellij.openapi.fileTypes.SyntaxHighlighterBase
 import com.intellij.psi.TokenType
 import com.intellij.psi.tree.IElementType
 
-internal object EditorConfigSyntaxHighlighter : SyntaxHighlighterBase() {
+object EditorConfigSyntaxHighlighter : SyntaxHighlighterBase() {
 
   val SEPARATOR: TextAttributesKey = createTextAttributesKey("EDITORCONFIG_SEPARATOR", DefaultLanguageHighlighterColors.OPERATION_SIGN)
   val BRACE: TextAttributesKey = createTextAttributesKey("EDITORCONFIG_BRACE", DefaultLanguageHighlighterColors.BRACES)
diff --git a/plugins/editorconfig/frontend/src/highlighting/EditorConfigSyntaxHighlighterFactory.kt b/plugins/editorconfig/common/src/highlighting/EditorConfigSyntaxHighlighterFactory.kt
similarity index 91%
rename from plugins/editorconfig/frontend/src/highlighting/EditorConfigSyntaxHighlighterFactory.kt
rename to plugins/editorconfig/common/src/highlighting/EditorConfigSyntaxHighlighterFactory.kt
index 2395453b9044..278d8897319c 100644
--- a/plugins/editorconfig/frontend/src/highlighting/EditorConfigSyntaxHighlighterFactory.kt
+++ b/plugins/editorconfig/common/src/highlighting/EditorConfigSyntaxHighlighterFactory.kt
@@ -1,5 +1,5 @@
 // Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
-package com.intellij.editorconfig.frontend.highlighting
+package com.intellij.editorconfig.common.highlighting
 
 import com.intellij.openapi.fileTypes.SyntaxHighlighter
 import com.intellij.openapi.fileTypes.SyntaxHighlighterFactory
diff --git a/plugins/editorconfig/frontend/BUILD.bazel b/plugins/editorconfig/frontend/BUILD.bazel
index a76264cadbea..ce9539c7aaed 100644
--- a/plugins/editorconfig/frontend/BUILD.bazel
+++ b/plugins/editorconfig/frontend/BUILD.bazel
@@ -27,12 +27,11 @@ jvm_library(
         "//platform/lang-api:lang",
         "//plugins/editorconfig/common",
         "//platform/util:util-ui",
-        "//platform/util-ex",
         "//platform/analysis-impl",
-        "//platform/platform-impl:ide-impl",
         "//platform/lang-impl",
         "//platform/core-ui",
         "//platform/platform-frontend:frontend",
+        "//platform/platform-api:ide",
     ],
 )
 
@@ -55,12 +54,11 @@ jvm_library(
         "//platform/lang-api:lang_test_lib",
         "//plugins/editorconfig/common:common_test_lib",
         "//platform/util:util-ui_test_lib",
-        "//platform/util-ex:util-ex_test_lib",
         "//platform/analysis-impl:analysis-impl_test_lib",
-        "//platform/platform-impl:ide-impl_test_lib",
         "//platform/lang-impl:lang-impl_test_lib",
         "//platform/core-ui:core-ui_test_lib",
         "//platform/platform-frontend:frontend_test_lib",
+        "//platform/platform-api:ide_test_lib",
     ],
 )
 ### auto-generated section `build intellij.editorconfig.frontend` end
diff --git a/plugins/editorconfig/frontend/intellij.editorconfig.frontend.iml b/plugins/editorconfig/frontend/intellij.editorconfig.frontend.iml
index 718a3f067784..d163ef7003f8 100644
--- a/plugins/editorconfig/frontend/intellij.editorconfig.frontend.iml
+++ b/plugins/editorconfig/frontend/intellij.editorconfig.frontend.iml
@@ -15,11 +15,10 @@
     <orderEntry type="module" module-name="intellij.platform.lang" />
     <orderEntry type="module" module-name="intellij.editorconfig.common" />
     <orderEntry type="module" module-name="intellij.platform.util.ui" />
-    <orderEntry type="module" module-name="intellij.platform.util.ex" />
     <orderEntry type="module" module-name="intellij.platform.analysis.impl" />
-    <orderEntry type="module" module-name="intellij.platform.ide.impl" />
     <orderEntry type="module" module-name="intellij.platform.lang.impl" />
     <orderEntry type="module" module-name="intellij.platform.core.ui" />
     <orderEntry type="module" module-name="intellij.platform.frontend" />
+    <orderEntry type="module" module-name="intellij.platform.ide" />
   </component>
 </module>
\ No newline at end of file
diff --git a/plugins/editorconfig/frontend/resources/intellij.editorconfig.frontend.xml b/plugins/editorconfig/frontend/resources/intellij.editorconfig.frontend.xml
index 32ada15160c8..d5987b19a385 100644
--- a/plugins/editorconfig/frontend/resources/intellij.editorconfig.frontend.xml
+++ b/plugins/editorconfig/frontend/resources/intellij.editorconfig.frontend.xml
@@ -4,16 +4,9 @@
     <module name="intellij.editorconfig.common"/>
   </dependencies>
   <extensions defaultExtensionNs="com.intellij">
-    <lang.syntaxHighlighterFactory language="EditorConfig"
-                                   implementationClass="com.intellij.editorconfig.frontend.highlighting.EditorConfigSyntaxHighlighterFactory"/>
     <annotator language="EditorConfig" implementationClass="com.intellij.editorconfig.frontend.highlighting.EditorConfigAnnotator"/>
     <colorSettingsPage implementation="com.intellij.editorconfig.frontend.settings.EditorConfigColorSettingsPage"/>
     <lang.foldingBuilder language="EditorConfig"
                          implementationClass="com.intellij.editorconfig.frontend.lang.editor.EditorConfigFoldingBuilder"/>
-    <statementUpDownMover implementation="com.intellij.editorconfig.frontend.editor.EditorConfigStatementUpDownMover"/>
-    <moveLeftRightHandler language="EditorConfig"
-                          implementationClass="com.intellij.editorconfig.frontend.editor.EditorConfigMoveElementLeftRightHandler"/>
-    <enterHandlerDelegate implementation="com.intellij.editorconfig.frontend.editor.EnterInEditorConfigFileHandler"/>
-    <typedHandler implementation="com.intellij.editorconfig.frontend.editor.EditorConfigTypedHandlerDelegate"/>
   </extensions>
 </idea-plugin>
diff --git a/plugins/editorconfig/frontend/src/highlighting/EditorConfigAnnotatorVisitor.kt b/plugins/editorconfig/frontend/src/highlighting/EditorConfigAnnotatorVisitor.kt
index ad6be9f777f7..d1fff79d0cd3 100644
--- a/plugins/editorconfig/frontend/src/highlighting/EditorConfigAnnotatorVisitor.kt
+++ b/plugins/editorconfig/frontend/src/highlighting/EditorConfigAnnotatorVisitor.kt
@@ -2,6 +2,7 @@
 package com.intellij.editorconfig.frontend.highlighting
 
 import com.intellij.editorconfig.common.EditorConfigBundle
+import com.intellij.editorconfig.common.highlighting.EditorConfigSyntaxHighlighter
 import com.intellij.editorconfig.common.syntax.psi.EditorConfigAsteriskPattern
 import com.intellij.editorconfig.common.syntax.psi.EditorConfigCharClassExclamation
 import com.intellij.editorconfig.common.syntax.psi.EditorConfigCharClassLetter
@@ -139,8 +140,10 @@ internal class EditorConfigAnnotatorVisitor(private val holder: AnnotationHolder
 
   override fun visitCharClassLetter(letter: EditorConfigCharClassLetter): Unit = when {
     !letter.isEscape -> holder.newSilentAnnotation(HighlightSeverity.INFORMATION).range(letter).textAttributes(EditorConfigSyntaxHighlighter.PATTERN).create()
-    letter.isValidEscape -> holder.newSilentAnnotation(HighlightSeverity.INFORMATION).range(letter).textAttributes(EditorConfigSyntaxHighlighter.VALID_CHAR_ESCAPE).create()
-    else -> holder.newAnnotation(HighlightSeverity.INFORMATION, EditorConfigBundle["annotator.error.illegal.char.escape"]).range(letter).textAttributes(EditorConfigSyntaxHighlighter.INVALID_CHAR_ESCAPE).create()
+    letter.isValidEscape -> holder.newSilentAnnotation(HighlightSeverity.INFORMATION).range(letter).textAttributes(
+      EditorConfigSyntaxHighlighter.VALID_CHAR_ESCAPE).create()
+    else -> holder.newAnnotation(HighlightSeverity.INFORMATION, EditorConfigBundle["annotator.error.illegal.char.escape"]).range(letter).textAttributes(
+      EditorConfigSyntaxHighlighter.INVALID_CHAR_ESCAPE).create()
   }
 
   override fun visitRootDeclarationKey(key: EditorConfigRootDeclarationKey) {
diff --git a/plugins/editorconfig/frontend/src/settings/EditorConfigColorSettingsPage.kt b/plugins/editorconfig/frontend/src/settings/EditorConfigColorSettingsPage.kt
index c8e897abbdeb..915fc4ca76bc 100644
--- a/plugins/editorconfig/frontend/src/settings/EditorConfigColorSettingsPage.kt
+++ b/plugins/editorconfig/frontend/src/settings/EditorConfigColorSettingsPage.kt
@@ -3,7 +3,7 @@ package com.intellij.editorconfig.frontend.settings
 
 import com.intellij.editorconfig.common.EditorConfigBundle.get
 import com.intellij.editorconfig.common.plugin.EditorConfigFileType
-import com.intellij.editorconfig.frontend.highlighting.EditorConfigSyntaxHighlighter
+import com.intellij.editorconfig.common.highlighting.EditorConfigSyntaxHighlighter
 import com.intellij.icons.AllIcons
 import com.intellij.openapi.editor.colors.TextAttributesKey
 import com.intellij.openapi.fileTypes.SyntaxHighlighter