- An IIS/ASP.NET HttpModule & image server. On-demand image manipulation, delivery, and optimization — with low latency — makes responsive images easy
- An image processing library optimized and secured for server-side use
- A framework and collection of 40+ plugins to accomplish most common web imaging needs.
ImageResizer has a very simple (and powerful) URL API.
Basic Installation Guide
Install from NuGet
Nearly all ImageResizer plugins are on NuGet (33+). If you like to live dangerously, try our nightly builds from
Get the basics:
PM> Install-Package ImageResizer.WebConfig PM> Install-Package ImageResizer.Plugins.DiskCache PM> Install-Package ImageResizer.Plugins.PrettyGifs
Manual Plugin Installation
- In your project, add a reference to the plugin DLL (or project, if you're using the source).
- Configure the plugin to be installed at startup via (i) or (ii).
(i) In the <plugins /> section of Web.config, insert
<add name="PluginName" />
Application_Start, create an instance of the plugin and install it.
You will need to add the appropriate namespace reference to access the plugin.
Most configuration and plugin installation issues can be resolved by checking ImageResizer’s self-diagnostics page. If your local website is running at
http://localhost:5000/, then you should browse to
http://localhost:5000/resizer.debug.ashx to access it. See the Troubleshooting page for more details.
Want the Source?
We use submodules - clone using either
git clone -b develop --recursive https://github.com/imazen/resizer - or - git clone https://github.com/imazen/resizer git checkout develop git submodule update --init --recursive
Make sure to add a project reference.
If you're contributing, make sure you start by checking out the
develop branch, and then making your changes. See our CONTRIBUTING guide on GitHub.
We also publish source code with each stable release that you can get from the download page.