diff --git a/src/Utils/Json.php b/src/Utils/Json.php
index 719c87c7..7dbb06e2 100644
--- a/src/Utils/Json.php
+++ b/src/Utils/Json.php
@@ -27,6 +27,8 @@ final class Json
 
 	/** @deprecated use Json::encode(..., asciiSafe: true) */
 	public const ESCAPE_UNICODE = 1 << 19;
+	public const Ignore = 1;
+	public const Substitute = 2;
 
 
 	/**
@@ -40,6 +42,7 @@ public static function encode(
 		bool $asciiSafe = false,
 		bool $htmlSafe = false,
 		bool $forceObjects = false,
+		int $invalidUtf8 = 0,
 	): string
 	{
 		$flags = is_int($pretty) // back compatibility
@@ -47,7 +50,9 @@ public static function encode(
 			: ($asciiSafe ? 0 : JSON_UNESCAPED_UNICODE)
 				| ($pretty ? JSON_PRETTY_PRINT : 0)
 				| ($forceObjects ? JSON_FORCE_OBJECT : 0)
-				| ($htmlSafe ? JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_TAG : 0);
+				| ($htmlSafe ? JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_TAG : 0)
+				| ($invalidUtf8 === self::Ignore ? JSON_INVALID_UTF8_IGNORE : 0)
+				| ($invalidUtf8 === self::Substitute ? JSON_INVALID_UTF8_SUBSTITUTE : 0);
 
 		$flags |= JSON_UNESCAPED_SLASHES | JSON_PRESERVE_ZERO_FRACTION;
 
@@ -64,11 +69,17 @@ public static function encode(
 	 * Decodes a JSON string to a PHP value. Use $forceArrays to decode objects as arrays.
 	 * @throws JsonException
 	 */
-	public static function decode(string $json, bool|int $forceArrays = false): mixed
+	public static function decode(
+		string $json,
+		bool|int $forceArrays = false,
+		int $invalidUtf8 = 0,
+	): mixed
 	{
 		$flags = is_int($forceArrays) // back compatibility
 			? $forceArrays
-			: ($forceArrays ? JSON_OBJECT_AS_ARRAY : 0);
+			: (($forceArrays ? JSON_OBJECT_AS_ARRAY : 0)
+				| ($invalidUtf8 === self::Ignore ? JSON_INVALID_UTF8_IGNORE : 0)
+				| ($invalidUtf8 === self::Substitute ? JSON_INVALID_UTF8_SUBSTITUTE : 0));
 		$flags |= JSON_BIGINT_AS_STRING;
 
 		$value = json_decode($json, flags: $flags);
@@ -78,4 +89,14 @@ public static function decode(string $json, bool|int $forceArrays = false): mixe
 
 		return $value;
 	}
+
+
+	/**
+	 * Converts given JSON file to PHP value.
+	 * @throws JsonException
+	 */
+	public static function decodeFile(string $file, bool $forceArray = false): mixed
+	{
+		return self::decode(FileSystem::read($file), $forceArray);
+	}
 }