Build Status


A Dart library providing the ability to load, save and manipulate images in a variety of different file formats.

The library has no reliance on dart:io, so it can be used for both server and web applications.

Supported Image Formats:


  • PNG / Animated APNG
  • JPEG
  • Targa
  • GIF / Animated GIF

Read Only:

  • WebP / Animated WebP
  • TIFF
  • Photoshop PSD
  • OpenEXR




##Format Decoding Functions


Load an image, resize it, and save it as a png:

import 'dart:io' as Io;
import 'package:image/image.dart';
void main() {
  // Read an image from file (webp in this case).
  // decodeImage will identify the format of the image and use the appropriate
  // decoder.
  Image image = decodeImage(new Io.File('test.webp').readAsBytesSync());

  // Resize the image to a 120x? thumbnail (maintaining the aspect ratio).
  Image thumbnail = copyResize(image, 120);

  // Save the thumbnail as a PNG.
  new Io.File('thumbnail.png')



The image library aims to provide server-side programs the ability to load, manipulate, and save various image file formats.