diff --git a/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirJsDiagnosticsList.kt b/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirJsDiagnosticsList.kt
index fe0fce3480f..32244febf6d 100644
--- a/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirJsDiagnosticsList.kt
+++ b/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirJsDiagnosticsList.kt
@@ -20,7 +20,6 @@ import org.jetbrains.kotlin.psi.*
 @OptIn(PrivateForInline::class)
 object JS_DIAGNOSTICS_LIST : DiagnosticList("FirJsErrors") {
     val ANNOTATIONS by object : DiagnosticGroup("Annotations") {
-        val WRONG_JS_QUALIFIER by error<KtElement>()
         val JS_MODULE_PROHIBITED_ON_VAR by error<KtElement>(PositioningStrategy.DECLARATION_SIGNATURE_OR_DEFAULT)
         val JS_MODULE_PROHIBITED_ON_NON_NATIVE by error<KtElement>(PositioningStrategy.DECLARATION_SIGNATURE_OR_DEFAULT)
         val NESTED_JS_MODULE_PROHIBITED by error<KtElement>(PositioningStrategy.DECLARATION_SIGNATURE_OR_DEFAULT)
diff --git a/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirWebCommonDiagnosticList.kt b/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirWebCommonDiagnosticList.kt
index 69ff40596a8..74c1feb42c3 100644
--- a/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirWebCommonDiagnosticList.kt
+++ b/compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirWebCommonDiagnosticList.kt
@@ -13,6 +13,10 @@ import org.jetbrains.kotlin.util.PrivateForInline
 @Suppress("ClassName", "unused")
 @OptIn(PrivateForInline::class)
 object WEB_COMMON_DIAGNOSTICS_LIST : DiagnosticList("FirWebCommonErrors") {
+    val ANNOTATIONS by object : DiagnosticGroup("Annotations") {
+        val WRONG_JS_QUALIFIER by error<KtElement>()
+    }
+
     val EXTERNALS by object : DiagnosticGroup("Externals") {
         val NESTED_EXTERNAL_DECLARATION by error<KtExpression>(PositioningStrategy.DECLARATION_SIGNATURE_OR_DEFAULT)
         val WRONG_EXTERNAL_DECLARATION by error<KtExpression>(PositioningStrategy.DECLARATION_SIGNATURE_OR_DEFAULT) {
diff --git a/compiler/fir/checkers/checkers.js/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/js/FirJsErrors.kt b/compiler/fir/checkers/checkers.js/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/js/FirJsErrors.kt
index 355fb29bb67..6c47f67d30e 100644
--- a/compiler/fir/checkers/checkers.js/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/js/FirJsErrors.kt
+++ b/compiler/fir/checkers/checkers.js/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/js/FirJsErrors.kt
@@ -25,7 +25,6 @@ import org.jetbrains.kotlin.psi.KtExpression
  */
 object FirJsErrors {
     // Annotations
-    val WRONG_JS_QUALIFIER by error0<KtElement>()
     val JS_MODULE_PROHIBITED_ON_VAR by error0<KtElement>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE_OR_DEFAULT)
     val JS_MODULE_PROHIBITED_ON_NON_NATIVE by error0<KtElement>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE_OR_DEFAULT)
     val NESTED_JS_MODULE_PROHIBITED by error0<KtElement>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE_OR_DEFAULT)
diff --git a/compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/diagnostics/js/FirJsErrorsDefaultMessages.kt b/compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/diagnostics/js/FirJsErrorsDefaultMessages.kt
index 4c8f138f2b4..40011480cf8 100644
--- a/compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/diagnostics/js/FirJsErrorsDefaultMessages.kt
+++ b/compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/diagnostics/js/FirJsErrorsDefaultMessages.kt
@@ -57,14 +57,12 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.js.FirJsErrors.RUNTIME_ANNO
 import org.jetbrains.kotlin.fir.analysis.diagnostics.js.FirJsErrors.SPREAD_OPERATOR_IN_DYNAMIC_CALL
 import org.jetbrains.kotlin.fir.analysis.diagnostics.js.FirJsErrors.UNCHECKED_CAST_TO_EXTERNAL_INTERFACE
 import org.jetbrains.kotlin.fir.analysis.diagnostics.js.FirJsErrors.WRONG_EXPORTED_DECLARATION
-import org.jetbrains.kotlin.fir.analysis.diagnostics.js.FirJsErrors.WRONG_JS_QUALIFIER
 import org.jetbrains.kotlin.fir.analysis.diagnostics.js.FirJsErrors.WRONG_MULTIPLE_INHERITANCE
 import org.jetbrains.kotlin.fir.analysis.diagnostics.js.FirJsErrors.WRONG_OPERATION_WITH_DYNAMIC
 
 @Suppress("unused")
 object FirJsErrorsDefaultMessages : BaseDiagnosticRendererFactory() {
     override val MAP = KtDiagnosticFactoryToRendererMap("FIR").also { map ->
-        map.put(WRONG_JS_QUALIFIER, "Qualifier contains illegal characters.")
         map.put(JS_MODULE_PROHIBITED_ON_VAR, "'@JsModule' and '@JsNonModule' annotations are prohibited for 'var' declarations. Use 'val' instead.")
         map.put(JS_MODULE_PROHIBITED_ON_NON_NATIVE, "'@JsModule' and '@JsNonModule' annotations are prohibited for non-external declarations.")
         map.put(
diff --git a/compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/js/checkers/JsExpressionCheckers.kt b/compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/js/checkers/JsExpressionCheckers.kt
index b11ff7d459a..623f8f59135 100644
--- a/compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/js/checkers/JsExpressionCheckers.kt
+++ b/compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/js/checkers/JsExpressionCheckers.kt
@@ -8,6 +8,7 @@ package org.jetbrains.kotlin.fir.analysis.js.checkers
 import org.jetbrains.kotlin.fir.analysis.checkers.expression.*
 import org.jetbrains.kotlin.fir.analysis.js.checkers.expression.*
 import org.jetbrains.kotlin.fir.analysis.web.common.checkers.expression.FirJsCodeConstantArgumentChecker
+import org.jetbrains.kotlin.fir.analysis.web.common.checkers.expression.FirJsQualifierChecker
 
 object JsExpressionCheckers : ExpressionCheckers() {
     override val annotationCallCheckers: Set<FirAnnotationCallChecker>
diff --git a/compiler/fir/checkers/checkers.wasm/src/org/jetbrains/kotlin/fir/analysis/wasm/checkers/WasmExpressionCheckers.kt b/compiler/fir/checkers/checkers.wasm/src/org/jetbrains/kotlin/fir/analysis/wasm/checkers/WasmExpressionCheckers.kt
index 2e121370e51..391663b4c9f 100644
--- a/compiler/fir/checkers/checkers.wasm/src/org/jetbrains/kotlin/fir/analysis/wasm/checkers/WasmExpressionCheckers.kt
+++ b/compiler/fir/checkers/checkers.wasm/src/org/jetbrains/kotlin/fir/analysis/wasm/checkers/WasmExpressionCheckers.kt
@@ -9,8 +9,14 @@ import org.jetbrains.kotlin.fir.analysis.checkers.expression.*
 import org.jetbrains.kotlin.fir.analysis.wasm.checkers.expression.FirWasmDefinedExternallyCallChecker
 import org.jetbrains.kotlin.fir.analysis.wasm.checkers.expression.FirWasmJsCodeCallChecker
 import org.jetbrains.kotlin.fir.analysis.web.common.checkers.expression.FirJsCodeConstantArgumentChecker
+import org.jetbrains.kotlin.fir.analysis.web.common.checkers.expression.FirJsQualifierChecker
 
 object WasmExpressionCheckers : ExpressionCheckers() {
+    override val annotationCallCheckers: Set<FirAnnotationCallChecker>
+        get() = setOf(
+            FirJsQualifierChecker,
+        )
+
     override val basicExpressionCheckers: Set<FirBasicExpressionChecker>
         get() = setOf(
             FirWasmDefinedExternallyCallChecker,
diff --git a/compiler/fir/checkers/checkers.web.common/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/web/common/FirWebCommonErrors.kt b/compiler/fir/checkers/checkers.web.common/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/web/common/FirWebCommonErrors.kt
index c39797a2d35..ef801b1632c 100644
--- a/compiler/fir/checkers/checkers.web.common/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/web/common/FirWebCommonErrors.kt
+++ b/compiler/fir/checkers/checkers.web.common/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/web/common/FirWebCommonErrors.kt
@@ -19,6 +19,9 @@ import org.jetbrains.kotlin.psi.KtParameter
  * Generated from: [org.jetbrains.kotlin.fir.checkers.generator.diagnostics.WEB_COMMON_DIAGNOSTICS_LIST]
  */
 object FirWebCommonErrors {
+    // Annotations
+    val WRONG_JS_QUALIFIER by error0<KtElement>()
+
     // Externals
     val NESTED_EXTERNAL_DECLARATION by error0<KtExpression>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE_OR_DEFAULT)
     val WRONG_EXTERNAL_DECLARATION by error1<KtExpression, String>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE_OR_DEFAULT)
diff --git a/compiler/fir/checkers/checkers.web.common/src/org/jetbrains/kotlin/fir/analysis/diagnostics/web/common/FirWebCommonErrorsDefaultMessages.kt b/compiler/fir/checkers/checkers.web.common/src/org/jetbrains/kotlin/fir/analysis/diagnostics/web/common/FirWebCommonErrorsDefaultMessages.kt
index c5164c35927..d9dc43cb2c0 100644
--- a/compiler/fir/checkers/checkers.web.common/src/org/jetbrains/kotlin/fir/analysis/diagnostics/web/common/FirWebCommonErrorsDefaultMessages.kt
+++ b/compiler/fir/checkers/checkers.web.common/src/org/jetbrains/kotlin/fir/analysis/diagnostics/web/common/FirWebCommonErrorsDefaultMessages.kt
@@ -22,10 +22,12 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.web.common.FirWebCommonErro
 import org.jetbrains.kotlin.fir.analysis.diagnostics.web.common.FirWebCommonErrors.WRONG_DEFAULT_VALUE_FOR_EXTERNAL_FUN_PARAMETER
 import org.jetbrains.kotlin.fir.analysis.diagnostics.web.common.FirWebCommonErrors.WRONG_EXTERNAL_DECLARATION
 import org.jetbrains.kotlin.fir.analysis.diagnostics.web.common.FirWebCommonErrors.WRONG_INITIALIZER_OF_EXTERNAL_DECLARATION
+import org.jetbrains.kotlin.fir.analysis.diagnostics.web.common.FirWebCommonErrors.WRONG_JS_QUALIFIER
 
 @Suppress("unused")
 object FirWebCommonErrorsDefaultMessages : BaseDiagnosticRendererFactory() {
     override val MAP = KtDiagnosticFactoryToRendererMap("FIR").also { map ->
+        map.put(WRONG_JS_QUALIFIER, "Qualifier contains illegal characters.")
         map.put(NESTED_EXTERNAL_DECLARATION, "Non-top-level 'external' declaration.")
         map.put(WRONG_EXTERNAL_DECLARATION, "Declaration of such kind ({0}) cannot be external.", CommonRenderers.STRING)
         map.put(NESTED_CLASS_IN_EXTERNAL_INTERFACE, "Interface cannot contain nested classes and objects.")
diff --git a/compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/js/checkers/expression/FirJsQualifierChecker.kt b/compiler/fir/checkers/checkers.web.common/src/org/jetbrains/kotlin/fir/analysis/web/common/checkers/expression/FirJsQualifierChecker.kt
similarity index 80%
rename from compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/js/checkers/expression/FirJsQualifierChecker.kt
rename to compiler/fir/checkers/checkers.web.common/src/org/jetbrains/kotlin/fir/analysis/web/common/checkers/expression/FirJsQualifierChecker.kt
index 246ee4674f0..b04f12c1738 100644
--- a/compiler/fir/checkers/checkers.js/src/org/jetbrains/kotlin/fir/analysis/js/checkers/expression/FirJsQualifierChecker.kt
+++ b/compiler/fir/checkers/checkers.web.common/src/org/jetbrains/kotlin/fir/analysis/web/common/checkers/expression/FirJsQualifierChecker.kt
@@ -3,18 +3,18 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package org.jetbrains.kotlin.fir.analysis.js.checkers.expression
+package org.jetbrains.kotlin.fir.analysis.web.common.checkers.expression
 
 import org.jetbrains.kotlin.diagnostics.DiagnosticReporter
 import org.jetbrains.kotlin.diagnostics.reportOn
 import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
 import org.jetbrains.kotlin.fir.analysis.checkers.expression.FirAnnotationCallChecker
-import org.jetbrains.kotlin.fir.analysis.diagnostics.js.FirJsErrors
+import org.jetbrains.kotlin.fir.analysis.diagnostics.web.common.FirWebCommonErrors
 import org.jetbrains.kotlin.fir.declarations.toAnnotationClassId
 import org.jetbrains.kotlin.fir.expressions.FirAnnotationCall
 import org.jetbrains.kotlin.fir.expressions.FirConstExpression
 import org.jetbrains.kotlin.js.validateQualifier
-import org.jetbrains.kotlin.name.JsStandardClassIds.Annotations.JsQualifier
+import org.jetbrains.kotlin.name.WebCommonStandardClassIds.Annotations.JsQualifier
 
 object FirJsQualifierChecker : FirAnnotationCallChecker() {
     override fun check(expression: FirAnnotationCall, context: CheckerContext, reporter: DiagnosticReporter) {
@@ -25,7 +25,7 @@ object FirJsQualifierChecker : FirAnnotationCallChecker() {
         val string = (expression.argumentMapping.mapping.values.firstOrNull() as? FirConstExpression<*>)?.value as? String ?: return
 
         if (!validateQualifier(string)) {
-            reporter.reportOn(expression.argumentList.arguments.first().source, FirJsErrors.WRONG_JS_QUALIFIER, context)
+            reporter.reportOn(expression.argumentList.arguments.first().source, FirWebCommonErrors.WRONG_JS_QUALIFIER, context)
         }
     }
 }
diff --git a/compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/FirNonSuppressibleErrorNames.kt b/compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/FirNonSuppressibleErrorNames.kt
index a7cfcdf0fa9..33703d8dc99 100644
--- a/compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/FirNonSuppressibleErrorNames.kt
+++ b/compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/FirNonSuppressibleErrorNames.kt
@@ -157,7 +157,6 @@ val FIR_NON_SUPPRESSIBLE_ERROR_NAMES: Set<String> = setOf(
     "VOLATILE_ON_VALUE",
     "VOLATILE_ON_DELEGATE",
     "NON_SOURCE_ANNOTATION_ON_INLINED_LAMBDA_EXPRESSION",
-    "WRONG_JS_QUALIFIER",
     "JS_MODULE_PROHIBITED_ON_VAR",
     "JS_MODULE_PROHIBITED_ON_NON_NATIVE",
     "NESTED_JS_MODULE_PROHIBITED",
@@ -181,6 +180,7 @@ val FIR_NON_SUPPRESSIBLE_ERROR_NAMES: Set<String> = setOf(
     "NAME_CONTAINS_ILLEGAL_CHARS",
     "JS_NAME_CLASH",
     "JS_FAKE_NAME_CLASH",
+    "WRONG_JS_QUALIFIER",
     "OPT_IN_USAGE_ERROR",
     "OPT_IN_OVERRIDE_ERROR",
     "OPT_IN_CAN_ONLY_BE_USED_AS_ANNOTATION",
diff --git a/compiler/testData/diagnostics/wasmTests/jsInterop/wrongQualifier.kt b/compiler/testData/diagnostics/wasmTests/jsInterop/wrongQualifier.kt
new file mode 100644
index 00000000000..a188aef0d30
--- /dev/null
+++ b/compiler/testData/diagnostics/wasmTests/jsInterop/wrongQualifier.kt
@@ -0,0 +1,24 @@
+// FIR_IDENTICAL
+// FILE: a.kt
+@file:JsQualifier(<!WRONG_JS_QUALIFIER!>""<!>)
+
+// FILE: b.kt
+@file:JsQualifier(<!WRONG_JS_QUALIFIER!>"a..b"<!>)
+
+// FILE: c.kt
+@file:JsQualifier(<!WRONG_JS_QUALIFIER!>"a."<!>)
+
+// FILE: d.kt
+@file:JsQualifier(<!WRONG_JS_QUALIFIER!>".a"<!>)
+
+// FILE: e.kt
+@file:JsQualifier(<!WRONG_JS_QUALIFIER!>"%^&"<!>)
+
+// FILE: f.kt
+@file:JsQualifier("a.bc.d23._$")
+
+// FILE: g.kt
+typealias JsQ = JsQualifier
+
+// FILE: h.kt
+@file:JsQ(<!WRONG_JS_QUALIFIER!>value = "%^&"<!>)
diff --git a/core/compiler.common.js/src/org/jetbrains/kotlin/js/JsHelpers.kt b/core/compiler.common.web/src/org/jetbrains/kotlin/js/JsHelpers.kt
similarity index 100%
rename from core/compiler.common.js/src/org/jetbrains/kotlin/js/JsHelpers.kt
rename to core/compiler.common.web/src/org/jetbrains/kotlin/js/JsHelpers.kt
diff --git a/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/diagnostics/DiagnosticsFirWasmTestGenerated.java b/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/diagnostics/DiagnosticsFirWasmTestGenerated.java
index 5b04890c3ad..b0d76d33354 100644
--- a/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/diagnostics/DiagnosticsFirWasmTestGenerated.java
+++ b/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/diagnostics/DiagnosticsFirWasmTestGenerated.java
@@ -122,6 +122,12 @@ public class DiagnosticsFirWasmTestGenerated extends AbstractDiagnosticsFirWasmT
         public void testTypes() throws Exception {
             runTest("compiler/testData/diagnostics/wasmTests/jsInterop/types.kt");
         }
+
+        @Test
+        @TestMetadata("wrongQualifier.kt")
+        public void testWrongQualifier() throws Exception {
+            runTest("compiler/testData/diagnostics/wasmTests/jsInterop/wrongQualifier.kt");
+        }
     }
 
     @Nested
diff --git a/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/diagnostics/DiagnosticsWasmTestGenerated.java b/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/diagnostics/DiagnosticsWasmTestGenerated.java
index 468b9a96688..424df7dfe06 100644
--- a/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/diagnostics/DiagnosticsWasmTestGenerated.java
+++ b/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/diagnostics/DiagnosticsWasmTestGenerated.java
@@ -122,6 +122,12 @@ public class DiagnosticsWasmTestGenerated extends AbstractDiagnosticsWasmTest {
         public void testTypes() throws Exception {
             runTest("compiler/testData/diagnostics/wasmTests/jsInterop/types.kt");
         }
+
+        @Test
+        @TestMetadata("wrongQualifier.kt")
+        public void testWrongQualifier() throws Exception {
+            runTest("compiler/testData/diagnostics/wasmTests/jsInterop/wrongQualifier.kt");
+        }
     }
 
     @Nested