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Plupload is JavaScript API for building file uploaders. It supports multiple file selection, file filtering, chunked upload, client side image downsizing and when necessary can fallback to alternative runtimes, like Flash and Silverlight.
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Plupload - Cross browser and platform uploader API

What is Plupload

Plupload is a JavaScript API for dealing with file uploads it supports features like multiple file selection, file type filtering, request chunking, client side image scaling and it uses different runtimes to achieve this such as HTML 5, Silverlight, Flash, Gears and BrowserPlus.

What you need to build Plupload

How to build Plupload

In the root directory of Plupload where the build.xml file is you can run ant against different targets.


Will combine, preprocess and minify the Plupload classes into the js directory. It will not build the Silverlight and Flash .xap and .swf files.

ant moxiedoc

Will generate API Documentation for the project using the Moxiedoc tool. The docs will be generated to the docs/api directory.

ant release

Will produce release packages. The release packages will be placed in the tmp directory.

How to build Flash runtime

The Flash runtime uses a .swf file that can be built using the Flex SDK. This SDK can be downloaded from Adobe.

How to build Silverlight runtime

The Silverlight runtime uses a .xap file that can be built using the Silverlight SDK or Visual Studio.

Running the development version

The unminified development version of the javascript files can be executed by opening the examples/queue_widget_dev.html file running on a Web Server.

Contributing to the Plupload project

You can read more about how to contribute to this project at

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