promact

WP Azure Offload offers service to automatically copy WordPress media( including images, videos and othe media ) to your Azure Storage account and replaces their url to Azure’s CDN endpoint url for the faster delivery.
It also provides a service to create a new storage container to your storage account and also list out the storage containers already having in your storage account. You can choose either of this storage container or create a new storage container to store your WordPress media files.
There is also an option for the cache control, you can set the max-age of your choice. By default it is set to 2592000 seconds.
There is also an option to automatically remove files from your local server once they have been uploaded to your storage contaier.
This also provides options to the media library to copy or remove single media file as well as bulk media files from Azure storage.
This plugin also works well with the already existing media files. If you’re adding this plugin to the existing site, there is an option to copy all the existed files to the Azure Storage container. Copy media progress runs in background so the user do not need to wait till the progress complition they can do any work instead.
If the existed media has been attached to any post, this plugin will automatically find posts the media is attached and replaces the url with the CDN url.

WP Azure offload

test

I love when a developer gives himself a 5 stars review. The PLugin is totally broken and unworthy at any time.

Doesn't work

While uploading files to media library, copies files to Azure Storage and serve them using CDN url for faster delivery.

derekheld

Blue Storage for Microsoft Azure allows you to use Azure Storage to host your media for your WordPress powered blog. 
This plugin can wholly or partially replace local storage with Azure Storage. Using Azure Storage allows you to grow your 
storage as needed without having to upgrade your web server. You can also take advantage of Azure Storage features 
like georedundency or Azure CDN.
<ul>
<li>Allows you to migrate all existing files to your Azure Storage account.</li>
<li>File links are via HTTPS as to not interfere with websites run over HTTPS.</li>
<li>Gives you the ability to control the caching max-age of uploads.</li>
<li>Can either be enabled for all uploads or you can upload from “Add Media” in the editor.</li>
<li>You can delete all of the files uploaded from your WordPress site at any time.</li>
</ul>
For more details on Azure Storage and other Azure services, please visit the <a href="https://azure.microsoft.com" rel="nofollow ugc">Microsoft Azure website</a>.
<h3>License</h3>
This code released under the terms of the New BSD License (BSD).

Blue Storage

Blue Storage for Microsoft Azure allows you to use Azure Storage to host files for your WordPress powered blog.

WP Azure offload vs Blue Storage