diff --git a/example/.flutter-plugins-dependencies b/example/.flutter-plugins-dependencies
new file mode 100644
index 0000000..e42a038
--- /dev/null
+++ b/example/.flutter-plugins-dependencies
@@ -0,0 +1 @@
+{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"image_picker","path":"/Users/reni/Downloads/Programas/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/","dependencies":[]},{"name":"path_provider","path":"/Users/reni/Downloads/Programas/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider-0.4.1/","dependencies":[]}],"android":[{"name":"image_picker","path":"/Users/reni/Downloads/Programas/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/","dependencies":[]},{"name":"path_provider","path":"/Users/reni/Downloads/Programas/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider-0.4.1/","dependencies":[]}],"macos":[],"linux":[],"windows":[],"web":[]},"dependencyGraph":[{"name":"image_picker","dependencies":[]},{"name":"path_provider","dependencies":[]}],"date_created":"2021-05-01 15:40:37.479609","version":"2.1.0-12.2.pre"}
\ No newline at end of file
diff --git a/example/ios/Flutter/flutter_export_environment.sh b/example/ios/Flutter/flutter_export_environment.sh
new file mode 100755
index 0000000..417d45f
--- /dev/null
+++ b/example/ios/Flutter/flutter_export_environment.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+# This is a generated file; do not edit or check into version control.
+export "FLUTTER_ROOT=/Users/reni/Downloads/Programas/flutter"
+export "FLUTTER_APPLICATION_PATH=/Users/reni/Downloads/Projetos/Flutter/libs/flutter_luban/example"
+export "COCOAPODS_PARALLEL_CODE_SIGN=true"
+export "FLUTTER_TARGET=lib/main.dart"
+export "FLUTTER_BUILD_DIR=build"
+export "SYMROOT=${SOURCE_ROOT}/../build/ios"
+export "FLUTTER_BUILD_NAME=1.0.0"
+export "FLUTTER_BUILD_NUMBER=1"
+export "DART_OBFUSCATION=false"
+export "TRACK_WIDGET_CREATION=false"
+export "TREE_SHAKE_ICONS=false"
+export "PACKAGE_CONFIG=.packages"
diff --git a/lib/src/flutter_luban.dart b/lib/src/flutter_luban.dart
index f55911d..b690260 100644
--- a/lib/src/flutter_luban.dart
+++ b/lib/src/flutter_luban.dart
@@ -3,6 +3,7 @@ import 'dart:io';
 import 'dart:isolate';
 import 'dart:math';
 import 'dart:typed_data';
+import 'package:flutter/foundation.dart' as Foundation;
 
 import 'package:flutter/foundation.dart';
 import 'package:image/image.dart';
@@ -10,8 +11,21 @@ import 'package:image/image.dart';
 class Luban {
   Luban._();
 
-  static Future<String?> compressImage(CompressObject object) async {
-    return compute(_lubanCompress, object);
+  static Future<List<int>?> compressImage(CompressObject object) async {
+    if (Foundation.kIsWeb || (object.path == null || object.path!.isEmpty)) {
+      return compute(_lubanCompress, object);
+    } else {
+      List<int>? bytes = await compute(_lubanCompress, object);
+      if (bytes == null) {
+        return null;
+      }
+      File file = File(object.path!);
+      if (!file.existsSync()) {
+        file.createSync(recursive: true);
+      }
+      file.writeAsBytesSync(bytes, flush: true);
+      return bytes;
+    }
   }
 
   static Future<dynamic> compressImageQueue(CompressObject object) async {
@@ -23,7 +37,7 @@ class Luban {
     return answer.first;
   }
 
-  static Future<List<String?>> compressImageList(
+  static Future<List<List<int>?>> compressImageList(
       List<CompressObject> objects) async {
     return compute(_lubanCompressList, objects);
   }
@@ -38,36 +52,21 @@ class Luban {
     });
   }
 
-  static List<String?> _lubanCompressList(List<CompressObject> objects) {
-    var results = [];
+  static List<List<int>?> _lubanCompressList(List<CompressObject> objects) {
+    List<List<int>?> results = [];
     objects.forEach((_o) {
       results.add(_lubanCompress(_o));
     });
-    return results as List<String?>;
-  }
-
-  static bool _parseType(String path, List<String> suffix) {
-    bool _result = false;
-    for (int i = 0; i < suffix.length; i++) {
-      if (path.endsWith(suffix[i])) {
-        _result = true;
-        break;
-      }
-    }
-    return _result;
+    return results;
   }
 
-  static String? _lubanCompress(CompressObject object) {
-    Image image = decodeImage(object.imageFile!.readAsBytesSync())!;
-    var length = object.imageFile!.lengthSync();
-    print(object.imageFile!.path);
+  static List<int>? _lubanCompress(CompressObject object) {
+    Image image = decodeImage(object.bytes)!;
+    var length = object.bytes.lengthInBytes;
     bool isLandscape = false;
-    const List<String> jpgSuffix = ["jpg", "jpeg", "JPG", "JPEG"];
-    const List<String> pngSuffix = ["png", "PNG"];
-    bool isJpg = _parseType(object.imageFile!.path, jpgSuffix);
-    bool isPng = false;
 
-    if (!isJpg) isPng = _parseType(object.imageFile!.path, pngSuffix);
+    bool isJpg =
+        object.imageType == ImageType.JPEG || object.imageType == ImageType.JPG;
 
     double size;
     int fixelW = image.width;
@@ -85,26 +84,13 @@ class Luban {
     } else {
       scale = fixelW / fixelH;
     }
-    var decodedImageFile;
-    if (isJpg)
-      decodedImageFile = new File(
-          object.path! + '/img_${DateTime.now().millisecondsSinceEpoch}.jpg');
-    else if (isPng)
-      decodedImageFile = new File(
-          object.path! + '/img_${DateTime.now().millisecondsSinceEpoch}.png');
-    else
-      throw Exception("flutter_luban don't support this image type");
-
-    if (decodedImageFile.existsSync()) {
-      decodedImageFile.deleteSync();
-    }
+    List<int> bytes;
     var imageSize = length / 1024;
     if (scale <= 1 && scale > 0.5625) {
       if (fixelH < 1664) {
         if (imageSize < 150) {
-          decodedImageFile
-              .writeAsBytesSync(encodeJpg(image, quality: object.quality));
-          return decodedImageFile.path;
+          bytes = (encodeJpg(image, quality: object.quality));
+          return bytes;
         }
         size = (fixelW * fixelH) / pow(1664, 2) * 150;
         size = size < 60 ? 60 : size;
@@ -127,9 +113,8 @@ class Luban {
       }
     } else if (scale <= 0.5625 && scale >= 0.5) {
       if (fixelH < 1280 && imageSize < 200) {
-        decodedImageFile
-            .writeAsBytesSync(encodeJpg(image, quality: object.quality));
-        return decodedImageFile.path;
+        bytes = encodeJpg(image, quality: object.quality);
+        return bytes;
       }
       int multiple = fixelH / 1280 == 0 ? 1 : fixelH ~/ 1280;
       thumbW = fixelW / multiple;
@@ -144,9 +129,8 @@ class Luban {
       size = size < 100 ? 100 : size;
     }
     if (imageSize < size) {
-      decodedImageFile
-          .writeAsBytesSync(encodeJpg(image, quality: object.quality));
-      return decodedImageFile.path;
+      bytes = encodeJpg(image, quality: object.quality);
+      return bytes;
     }
     Image smallerImage;
     if (isLandscape) {
@@ -159,22 +143,17 @@ class Luban {
           height: object.autoRatio ? null : thumbH.toInt());
     }
 
-    if (decodedImageFile.existsSync()) {
-      decodedImageFile.deleteSync();
-    }
     if (object.mode == CompressMode.LARGE2SMALL) {
-      _large2SmallCompressImage(
+      bytes = _large2SmallCompressImage(
         image: smallerImage,
-        file: decodedImageFile,
         quality: object.quality,
         targetSize: size,
         step: object.step,
         isJpg: isJpg,
       );
     } else if (object.mode == CompressMode.SMALL2LARGE) {
-      _small2LargeCompressImage(
+      bytes = _small2LargeCompressImage(
         image: smallerImage,
-        file: decodedImageFile,
         quality: object.step,
         targetSize: size,
         step: object.step,
@@ -182,18 +161,16 @@ class Luban {
       );
     } else {
       if (imageSize < 500) {
-        _large2SmallCompressImage(
+        bytes = _large2SmallCompressImage(
           image: smallerImage,
-          file: decodedImageFile,
           quality: object.quality,
           targetSize: size,
           step: object.step,
           isJpg: isJpg,
         );
       } else {
-        _small2LargeCompressImage(
+        bytes = _small2LargeCompressImage(
           image: smallerImage,
-          file: decodedImageFile,
           quality: object.step,
           targetSize: size,
           step: object.step,
@@ -201,12 +178,11 @@ class Luban {
         );
       }
     }
-    return decodedImageFile.path;
+    return bytes;
   }
 
-  static _large2SmallCompressImage({
+  static List<int> _large2SmallCompressImage({
     Image? image,
-    File? file,
     quality,
     targetSize,
     step,
@@ -217,29 +193,25 @@ class Luban {
       var tempImageSize = Uint8List.fromList(im).lengthInBytes;
       if (tempImageSize / 1024 > targetSize && quality > step) {
         quality -= step;
-        _large2SmallCompressImage(
+        return _large2SmallCompressImage(
           image: image,
-          file: file,
           quality: quality,
           targetSize: targetSize,
           step: step,
         );
-        return;
       }
-      file!.writeAsBytesSync(im);
+      return im;
     } else {
-      _compressPng(
+      return _compressPng(
         image: image!,
-        file: file,
         targetSize: targetSize,
         large2Small: true,
       );
     }
   }
 
-  static _small2LargeCompressImage({
+  static List<int> _small2LargeCompressImage({
     Image? image,
-    File? file,
     quality,
     targetSize,
     step,
@@ -250,21 +222,18 @@ class Luban {
       var tempImageSize = Uint8List.fromList(im).lengthInBytes;
       if (tempImageSize / 1024 < targetSize && quality <= 100) {
         quality += step;
-        _small2LargeCompressImage(
+        return _small2LargeCompressImage(
           image: image,
-          file: file,
           quality: quality,
           targetSize: targetSize,
           step: step,
           isJpg: isJpg,
         );
-        return;
       }
-      file!.writeAsBytesSync(im);
+      return im;
     } else {
-      _compressPng(
+      return _compressPng(
         image: image!,
-        file: file,
         targetSize: targetSize,
         large2Small: false,
       );
@@ -272,9 +241,8 @@ class Luban {
   }
 
   ///level 1~9  level++ -> image--
-  static void _compressPng({
+  static List<int> _compressPng({
     required Image image,
-    File? file,
     level,
     targetSize,
     required bool large2Small,
@@ -286,22 +254,20 @@ class Luban {
       _level = level ?? 9;
     }
     List<int> im = encodePng(image, level: _level);
-    if (_level > 9 || _level < 1) {
+    if (_level >= 9 || _level <= 1) {
     } else {
       var tempImageSize = Uint8List.fromList(im).lengthInBytes;
       if (tempImageSize / 1024 > targetSize) {
-        _compressPng(
+        return _compressPng(
           image: image,
-          file: file,
           targetSize: targetSize,
           level: large2Small ? _level + 1 : _level - 1,
           large2Small: large2Small,
         );
-        return;
+        //return;
       }
     }
-
-    file!.writeAsBytesSync(im);
+    return im;
   }
 }
 
@@ -311,22 +277,25 @@ enum CompressMode {
   AUTO,
 }
 
+enum ImageType { JPG, JPEG, PNG }
+
 class CompressObject {
-  final File? imageFile;
-  final String? path;
+  final Uint8List bytes;
+  final ImageType? imageType;
   final CompressMode mode;
   final int quality;
   final int step;
+  final String? path;
 
   ///If you are not sure whether the image detail property is correct, set true, otherwise the compressed ratio may be incorrect
   final bool autoRatio;
 
-  CompressObject({
-    this.imageFile,
-    this.path,
-    this.mode: CompressMode.AUTO,
-    this.quality: 80,
-    this.step: 6,
-    this.autoRatio = true,
-  });
+  CompressObject(
+      {required this.bytes,
+      required this.imageType,
+      this.mode: CompressMode.AUTO,
+      this.quality: 80,
+      this.step: 6,
+      this.autoRatio = true,
+      this.path});
 }
diff --git a/pubspec.lock b/pubspec.lock
index a3c18b9..0fd14ff 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -7,56 +7,70 @@ packages:
       name: _fe_analyzer_shared
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.0"
+    version: "14.0.0"
   analyzer:
     dependency: transitive
     description:
       name: analyzer
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.39.1"
+    version: "0.41.2"
   archive:
     dependency: transitive
     description:
       name: archive
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.10"
+    version: "3.1.2"
   args:
     dependency: transitive
     description:
       name: args
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.2"
+    version: "1.6.0"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.5.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "2.1.0"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.2"
+    version: "1.2.0"
+  cli_util:
+    dependency: transitive
+    description:
+      name: cli_util
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.0"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.11"
+    version: "1.15.0"
   convert:
     dependency: transitive
     description:
@@ -70,229 +84,173 @@ packages:
       name: coverage
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.13.3+1"
+    version: "0.15.2"
   crypto:
     dependency: transitive
     description:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.3"
-  csslib:
+    version: "3.0.1"
+  file:
     dependency: transitive
     description:
-      name: csslib
+      name: file
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.16.1"
+    version: "6.1.0"
   flutter:
     dependency: "direct main"
     description: flutter
     source: sdk
     version: "0.0.0"
-  front_end:
-    dependency: transitive
-    description:
-      name: front_end
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.29"
   glob:
     dependency: transitive
     description:
       name: glob
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
-  html:
-    dependency: transitive
-    description:
-      name: html
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.14.0+3"
-  http:
-    dependency: transitive
-    description:
-      name: http
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.12.0+2"
+    version: "2.0.1"
   http_multi_server:
     dependency: transitive
     description:
       name: http_multi_server
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "3.0.1"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.3"
+    version: "4.0.0"
   image:
     dependency: "direct main"
     description:
       name: image
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.9"
+    version: "3.0.2"
   io:
     dependency: transitive
     description:
       name: io
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.3"
+    version: "1.0.0"
   js:
     dependency: transitive
     description:
       name: js
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.6.1+1"
-  kernel:
-    dependency: transitive
-    description:
-      name: kernel
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.3.29"
+    version: "0.6.3"
   logging:
     dependency: transitive
     description:
       name: logging
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.11.3+2"
+    version: "1.0.1"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.6"
+    version: "0.12.10"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.8"
+    version: "1.3.0"
   mime:
     dependency: transitive
     description:
       name: mime
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.9.6+3"
-  multi_server_socket:
-    dependency: transitive
-    description:
-      name: multi_server_socket
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.2"
-  node_interop:
-    dependency: transitive
-    description:
-      name: node_interop
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.3"
-  node_io:
-    dependency: transitive
-    description:
-      name: node_io
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.1+2"
+    version: "1.0.0"
   node_preamble:
     dependency: transitive
     description:
       name: node_preamble
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.4.8"
+    version: "1.4.13"
   package_config:
     dependency: transitive
     description:
       name: package_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
-  package_resolver:
-    dependency: transitive
-    description:
-      name: package_resolver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.10"
+    version: "1.9.3"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.8.0"
   pedantic:
     dependency: transitive
     description:
       name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0+1"
+    version: "1.11.0"
   petitparser:
     dependency: transitive
     description:
       name: petitparser
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "4.1.0"
   pool:
     dependency: transitive
     description:
       name: pool
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.4.0"
+    version: "1.5.0"
   pub_semver:
     dependency: transitive
     description:
       name: pub_semver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.4.2"
+    version: "2.0.0"
   shelf:
     dependency: transitive
     description:
       name: shelf
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.7.5"
+    version: "1.1.1"
   shelf_packages_handler:
     dependency: transitive
     description:
       name: shelf_packages_handler
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "2.0.1"
   shelf_static:
     dependency: transitive
     description:
       name: shelf_static
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.8"
+    version: "0.2.9+2"
   shelf_web_socket:
     dependency: transitive
     description:
       name: shelf_web_socket
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.3"
+    version: "0.2.4+1"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -304,118 +262,125 @@ packages:
       name: source_map_stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.5"
+    version: "2.1.0"
   source_maps:
     dependency: transitive
     description:
       name: source_maps
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.10.8"
+    version: "0.10.10"
   source_span:
     dependency: transitive
     description:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.5"
+    version: "1.8.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.3"
+    version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
+    version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.2.0"
   test:
     dependency: "direct dev"
     description:
       name: test
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.4"
+    version: "1.16.5"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.11"
+    version: "0.2.19"
   test_core:
     dependency: transitive
     description:
       name: test_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.15"
+    version: "0.3.15"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.6"
+    version: "1.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.8"
+    version: "2.1.0"
   vm_service:
     dependency: transitive
     description:
       name: vm_service
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.1"
+    version: "6.2.0"
   watcher:
     dependency: transitive
     description:
       name: watcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.9.7+12"
+    version: "1.0.0"
   web_socket_channel:
     dependency: transitive
     description:
       name: web_socket_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.2.0"
+  webkit_inspection_protocol:
+    dependency: transitive
+    description:
+      name: webkit_inspection_protocol
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
   xml:
     dependency: transitive
     description:
       name: xml
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.5.0"
+    version: "5.1.0"
   yaml:
     dependency: transitive
     description:
       name: yaml
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.0"
+    version: "3.1.0"
 sdks:
-  dart: ">=2.4.0 <3.0.0"
+  dart: ">=2.12.0 <3.0.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 51bb5b6..9900839 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -14,7 +14,7 @@ dependencies:
   image: ^3.0.2
 
 dev_dependencies:
-  test: ^1.16.8
+  test: ^1.9.4
 # For information on the generic Dart part of this file, see the
 # following page: https://www.dartlang.org/tools/pub/pubspec