msoftware

The Flickr WordPress Plugin works with jQuery and makes it easy to you, to add Flickr images to your WordPress posts or pages. Some flickr users offer their images under a Creative Commons license, so that they can be freely included in your blog posts without any copyright problems.
The Ajax powered search box enables you to search for Flickr photos by matching your keyword. From the preview thumbshots you can chose your image by clicking it.
Once you have the photo selected, choose the size you want add in your blog post or select a rectangle from the image to crop a part of the photo.
Now you can click “Insert into Post” and the selected Photo will be added to your blog post including the required Copyright note and a nofollow image link to the author’s flickr page.
When adding the image in your blog post, you can select the image alignment as none, right, left, or center in the Flickr Media Panel
<h3>Key Features</h3>
<ol>
<li>
Use 100 million free images from flickr
</li>
<li>
Full text flickr search box
</li>
<li>
The Local Image Cache provides an immediate performance benefit
</li>
<li>
Nofollow link to the author’s flickr site included
</li>
<li>
Nice full featured, Ajax powered interface
</li>
<li>
Support for WordPress Image-Caption code
</li>
<li>
High usability by use of easy interaction components
</li>
<li>
Select image size from 100 to 640 pixel on the longest side.
</li>
<li>
You can crop a photo if you need only a rectangular part of the image
</li>
<li>
Multilanguage I18n: English and German Language Support
</li>
</ol>

Flickr Photo Post

The Flickr Wordpress Plugin allows you to add flickr images to your wordpress posts incl. a simple crop function.

alpipego

Instead of creating image sizes on upload, this plugin only creates them when requested.
Normally after activating a new theme or plugin that adds new image sizes, you will have to use a tool like <a href="https://wordpress.org/plugins/regenerate-thumbnails/" rel="ugc">Regenerate Thumbnails</a> to create the newly registered image sizes. Depending on the size of the media library and the “power” of your server, this might take a while or even take several tries to process all your images; and in the end, you don’t even know if you’ll need all of the resized images.
This plugin takes care of the resizing dynamically and creates the requested size the moment it is first requested—and only when it is requested.
<h4>Support</h4>
For users: Please use the support forums on <a href="https://wordpress.org/support/plugin/resizefly" rel="ugc">wordpress.org</a> 
For developers: Head over to the <a href="https://github.com/alpipego/resizefly/" rel="nofollow ugc">Github repository</a> 
For everything else, find me on <a href="https://twitter.com/alpipego" rel="nofollow ugc">twitter</a> or on slack

ResizeFly

Nice idea!

Dynamically resize your WordPress images on the fly. Upload them once and don't worry about missing or new image sizes.

Flickr Photo Post vs ResizeFly