diff --git a/compiler/testData/codegen/box/enum/sortEnumEntries.kt b/compiler/testData/codegen/box/enum/sortEnumEntries.kt
index 41dd0f3c7c0..2c1034a7df8 100644
--- a/compiler/testData/codegen/box/enum/sortEnumEntries.kt
+++ b/compiler/testData/codegen/box/enum/sortEnumEntries.kt
@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: WASM
-// WASM_MUTE_REASON: STDLIB_GENERATED
 // WITH_STDLIB
 
 import Game.*
diff --git a/compiler/testData/codegen/box/regressions/kt2017.kt b/compiler/testData/codegen/box/regressions/kt2017.kt
index 2c721b61db1..632e31924da 100644
--- a/compiler/testData/codegen/box/regressions/kt2017.kt
+++ b/compiler/testData/codegen/box/regressions/kt2017.kt
@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: WASM
-// WASM_MUTE_REASON: STDLIB_SORT
 // WITH_STDLIB
 
 fun box(): String {
diff --git a/compiler/testData/codegen/box/regressions/kt5056.kt b/compiler/testData/codegen/box/regressions/kt5056.kt
index 664adafbcd6..f1693c1f115 100644
--- a/compiler/testData/codegen/box/regressions/kt5056.kt
+++ b/compiler/testData/codegen/box/regressions/kt5056.kt
@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: WASM
-// WASM_MUTE_REASON: STDLIB_GENERATED
 // WITH_STDLIB
 
 fun box(): String {
diff --git a/compiler/testData/codegen/box/regressions/kt6434.kt b/compiler/testData/codegen/box/regressions/kt6434.kt
index 350b12c0a11..c767c63c6e9 100644
--- a/compiler/testData/codegen/box/regressions/kt6434.kt
+++ b/compiler/testData/codegen/box/regressions/kt6434.kt
@@ -1,5 +1,3 @@
-// IGNORE_BACKEND: WASM
-// WASM_MUTE_REASON: IGNORED_IN_JS
 // IGNORE_BACKEND: JS_IR
 // IGNORE_BACKEND: JS_IR_ES6
 // TODO: muted automatically, investigate should it be ran for JS or not
diff --git a/kotlin-native/runtime/src/main/kotlin/kotlin/collections/ArrayUtil.kt b/kotlin-native/runtime/src/main/kotlin/kotlin/collections/ArrayUtil.kt
index 92b819ed187..71bca9a23f2 100644
--- a/kotlin-native/runtime/src/main/kotlin/kotlin/collections/ArrayUtil.kt
+++ b/kotlin-native/runtime/src/main/kotlin/kotlin/collections/ArrayUtil.kt
@@ -22,22 +22,6 @@ internal inline fun <E> arrayOfUninitializedElements(size: Int): Array<E> {
     return Array<E>(size)
 }
 
-
-/**
- * Returns a new array which is a copy of the original array with new elements filled with null values.
- */
-internal fun <E> Array<E>.copyOfNulls(newSize: Int): Array<E?>  = copyOfNulls(0, newSize)
-
-internal fun <E> Array<E>.copyOfNulls(fromIndex: Int, toIndex: Int): Array<E?> {
-    val newSize = toIndex - fromIndex
-    if (newSize < 0) {
-        throw IllegalArgumentException("$fromIndex > $toIndex")
-    }
-    val result = @Suppress("TYPE_PARAMETER_AS_REIFIED") arrayOfNulls<E>(newSize)
-    this.copyInto(result, 0, fromIndex, toIndex.coerceAtMost(size))
-    return result
-}
-
 /**
  * Copies elements of the [collection] into the given [array].
  * If the array is too small, allocates a new one of collection.size size.
diff --git a/libraries/stdlib/native-wasm/src/kotlin/collections/Arrays.kt b/libraries/stdlib/native-wasm/src/kotlin/collections/Arrays.kt
index 7a230623ba0..b94a7935607 100644
--- a/libraries/stdlib/native-wasm/src/kotlin/collections/Arrays.kt
+++ b/libraries/stdlib/native-wasm/src/kotlin/collections/Arrays.kt
@@ -123,3 +123,18 @@ public actual inline fun <reified T> Collection<T>.toTypedArray(): Array<T> {
     @Suppress("UNCHECKED_CAST")
     return result as Array<T>
 }
+
+/**
+ * Returns a new array which is a copy of the original array with new elements filled with null values.
+ */
+internal fun <E> Array<E>.copyOfNulls(newSize: Int): Array<E?>  = copyOfNulls(0, newSize)
+
+internal fun <E> Array<E>.copyOfNulls(fromIndex: Int, toIndex: Int): Array<E?> {
+    val newSize = toIndex - fromIndex
+    if (newSize < 0) {
+        throw IllegalArgumentException("$fromIndex > $toIndex")
+    }
+    val result = @Suppress("TYPE_PARAMETER_AS_REIFIED") arrayOfNulls<E>(newSize)
+    this.copyInto(result, 0, fromIndex, toIndex.coerceAtMost(size))
+    return result
+}
\ No newline at end of file
diff --git a/libraries/stdlib/wasm/src/generated/_ArraysWasm.kt b/libraries/stdlib/wasm/src/generated/_ArraysWasm.kt
index b861b847697..1eab9a76c96 100644
--- a/libraries/stdlib/wasm/src/generated/_ArraysWasm.kt
+++ b/libraries/stdlib/wasm/src/generated/_ArraysWasm.kt
@@ -1499,7 +1499,7 @@ public actual fun CharArray.copyOf(newSize: Int): CharArray {
  * @sample samples.collections.Arrays.CopyOfOperations.resizingCopyOf
  */
 public actual fun <T> Array<T>.copyOf(newSize: Int): Array<T?> {
-    TODO("Wasm stdlib: copyOf(newSize: Int)")
+    return this.copyOfNulls(newSize)
 }
 
 /**
@@ -2299,7 +2299,7 @@ public actual inline fun <T> Array<T>.plusElement(element: T): Array<T> {
  * @sample samples.collections.Arrays.Sorting.sortArray
  */
 public actual fun IntArray.sort(): Unit {
-    TODO("Wasm stdlib: sort()")
+    if (size > 1) sortArray(this, 0, size)
 }
 
 /**
@@ -2308,7 +2308,7 @@ public actual fun IntArray.sort(): Unit {
  * @sample samples.collections.Arrays.Sorting.sortArray
  */
 public actual fun LongArray.sort(): Unit {
-    TODO("Wasm stdlib: sort()")
+    if (size > 1) sortArray(this, 0, size)
 }
 
 /**
@@ -2317,7 +2317,7 @@ public actual fun LongArray.sort(): Unit {
  * @sample samples.collections.Arrays.Sorting.sortArray
  */
 public actual fun ByteArray.sort(): Unit {
-    TODO("Wasm stdlib: sort()")
+    if (size > 1) sortArray(this, 0, size)
 }
 
 /**
@@ -2326,7 +2326,7 @@ public actual fun ByteArray.sort(): Unit {
  * @sample samples.collections.Arrays.Sorting.sortArray
  */
 public actual fun ShortArray.sort(): Unit {
-    TODO("Wasm stdlib: sort()")
+    if (size > 1) sortArray(this, 0, size)
 }
 
 /**
@@ -2335,7 +2335,7 @@ public actual fun ShortArray.sort(): Unit {
  * @sample samples.collections.Arrays.Sorting.sortArray
  */
 public actual fun DoubleArray.sort(): Unit {
-    TODO("Wasm stdlib: sort()")
+    if (size > 1) sortArray(this, 0, size)
 }
 
 /**
@@ -2344,7 +2344,7 @@ public actual fun DoubleArray.sort(): Unit {
  * @sample samples.collections.Arrays.Sorting.sortArray
  */
 public actual fun FloatArray.sort(): Unit {
-    TODO("Wasm stdlib: sort()")
+    if (size > 1) sortArray(this, 0, size)
 }
 
 /**
@@ -2353,7 +2353,7 @@ public actual fun FloatArray.sort(): Unit {
  * @sample samples.collections.Arrays.Sorting.sortArray
  */
 public actual fun CharArray.sort(): Unit {
-    TODO("Wasm stdlib: sort()")
+    if (size > 1) sortArray(this, 0, size)
 }
 
 /**
@@ -2364,7 +2364,7 @@ public actual fun CharArray.sort(): Unit {
  * @sample samples.collections.Arrays.Sorting.sortArrayOfComparable
  */
 public actual fun <T : Comparable<T>> Array<out T>.sort(): Unit {
-    TODO("Wasm stdlib: sort()")
+    if (size > 1) sortArray(this, 0, size)
 }
 
 /**
@@ -2383,7 +2383,8 @@ public actual fun <T : Comparable<T>> Array<out T>.sort(): Unit {
 @SinceKotlin("1.4")
 @Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
 public actual fun <T : Comparable<T>> Array<out T>.sort(fromIndex: Int = 0, toIndex: Int = size): Unit {
-    TODO("Wasm stdlib: sort(fromIndex: Int = 0, toIndex: Int = size)")
+    AbstractList.checkRangeIndexes(fromIndex, toIndex, size)
+    sortArray(this, fromIndex, toIndex)
 }
 
 /**
@@ -2400,7 +2401,8 @@ public actual fun <T : Comparable<T>> Array<out T>.sort(fromIndex: Int = 0, toIn
 @SinceKotlin("1.4")
 @Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
 public actual fun ByteArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit {
-    TODO("Wasm stdlib: sort(fromIndex: Int = 0, toIndex: Int = size)")
+    AbstractList.checkRangeIndexes(fromIndex, toIndex, size)
+    sortArray(this, fromIndex, toIndex)
 }
 
 /**
@@ -2417,7 +2419,8 @@ public actual fun ByteArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit
 @SinceKotlin("1.4")
 @Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
 public actual fun ShortArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit {
-    TODO("Wasm stdlib: sort(fromIndex: Int = 0, toIndex: Int = size)")
+    AbstractList.checkRangeIndexes(fromIndex, toIndex, size)
+    sortArray(this, fromIndex, toIndex)
 }
 
 /**
@@ -2434,7 +2437,8 @@ public actual fun ShortArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit
 @SinceKotlin("1.4")
 @Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
 public actual fun IntArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit {
-    TODO("Wasm stdlib: sort(fromIndex: Int = 0, toIndex: Int = size)")
+    AbstractList.checkRangeIndexes(fromIndex, toIndex, size)
+    sortArray(this, fromIndex, toIndex)
 }
 
 /**
@@ -2451,7 +2455,8 @@ public actual fun IntArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit {
 @SinceKotlin("1.4")
 @Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
 public actual fun LongArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit {
-    TODO("Wasm stdlib: sort(fromIndex: Int = 0, toIndex: Int = size)")
+    AbstractList.checkRangeIndexes(fromIndex, toIndex, size)
+    sortArray(this, fromIndex, toIndex)
 }
 
 /**
@@ -2468,7 +2473,8 @@ public actual fun LongArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit
 @SinceKotlin("1.4")
 @Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
 public actual fun FloatArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit {
-    TODO("Wasm stdlib: sort(fromIndex: Int = 0, toIndex: Int = size)")
+    AbstractList.checkRangeIndexes(fromIndex, toIndex, size)
+    sortArray(this, fromIndex, toIndex)
 }
 
 /**
@@ -2485,7 +2491,8 @@ public actual fun FloatArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit
 @SinceKotlin("1.4")
 @Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
 public actual fun DoubleArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit {
-    TODO("Wasm stdlib: sort(fromIndex: Int = 0, toIndex: Int = size)")
+    AbstractList.checkRangeIndexes(fromIndex, toIndex, size)
+    sortArray(this, fromIndex, toIndex)
 }
 
 /**
@@ -2502,7 +2509,8 @@ public actual fun DoubleArray.sort(fromIndex: Int = 0, toIndex: Int = size): Uni
 @SinceKotlin("1.4")
 @Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
 public actual fun CharArray.sort(fromIndex: Int = 0, toIndex: Int = size): Unit {
-    TODO("Wasm stdlib: sort(fromIndex: Int = 0, toIndex: Int = size)")
+    AbstractList.checkRangeIndexes(fromIndex, toIndex, size)
+    sortArray(this, fromIndex, toIndex)
 }
 
 /**
@@ -2527,7 +2535,8 @@ public actual fun <T> Array<out T>.sortWith(comparator: Comparator<in T>): Unit
  */
 @Suppress("ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS")
 public actual fun <T> Array<out T>.sortWith(comparator: Comparator<in T>, fromIndex: Int = 0, toIndex: Int = size): Unit {
-    TODO("Wasm stdlib: sortWith(comparator: Comparator<in T>, fromIndex: Int = 0, toIndex: Int = size)")
+    AbstractList.checkRangeIndexes(fromIndex, toIndex, size)
+    sortArrayWith(this, fromIndex, toIndex, comparator)
 }
 
 /**
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt
index 90d6cc80842..ca933f25362 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt
@@ -1174,9 +1174,6 @@ object ArrayOps : TemplateGroupBase() {
             }
             on(Platform.Native) {
                 body { "return this.copyOfNulls(newSize)" }
-                on(Backend.Wasm) {
-                    body { """TODO("Wasm stdlib: $signature")""" }
-                }
             }
         }
         specialFor(ArraysOfPrimitives, InvariantArraysOfObjects) {
@@ -1259,9 +1256,6 @@ object ArrayOps : TemplateGroupBase() {
             }
             on(Platform.Native) {
                 body { """if (size > 1) sortArray(this, 0, size)""" }
-                on(Backend.Wasm) {
-                    body { """TODO("Wasm stdlib: $signature")""" }
-                }
             }
         }
     }
@@ -1396,9 +1390,6 @@ object ArrayOps : TemplateGroupBase() {
                 sortArray(this, fromIndex, toIndex)
                 """
             }
-            on(Backend.Wasm) {
-                body { """TODO("Wasm stdlib: $signature")""" }
-            }
         }
         on(Platform.JS) {
             since("1.4")
@@ -1455,9 +1446,6 @@ object ArrayOps : TemplateGroupBase() {
                 sortArrayWith(this, fromIndex, toIndex, comparator)
                 """
             }
-            on(Backend.Wasm) {
-                body { """TODO("Wasm stdlib: $signature")""" }
-            }
         }
         on(Platform.JS) {
             since("1.4")