Funnnny

A plugin that automatic download and resize your images on Post when it larger than your width and height set on Option page.
This plugin is base on ImageScaler by PaulButler, I only change some code for the better work.

ImageScaler Modded

A plugin that automatic download and resize your images on Post when it larger than your width and height set on Option page.

llvasconcellos

*** ATENTION ***
Due to modifications on the Media Library the plugin only works with the “UPLOAD NEW MEDIA” form located under Media -> Add New menu entry on the left menu. If you click direct on Media and use the Add New button of MEDIA LIBRARY the plugin will not be executed.
I filled a bug report here: 
https://core.trac.wordpress.org/ticket/39492
With this plugin you can use High Resolution images directly from your camera to WordPress without using any additional software to resize them. You only have to use a HTML5 capable browser.
<ul>
<li>Works with Drag & Drop!</li>
</ul>
Exemple of capable browsers are: Chrome, Firefox, Opera, IOS e Android.
It will add extra media settings at SETTINGS -> MEDIA where you can specify resized JPG quality and maximum width and height for each uploaded image.
Brought to you by DevHouse – Internet Software Development House: http://www.devhouse.com.br
Com este plugin você pode usar diretamente as imagens em alta resolução diretamente da sua câmera digital diretamente para o WordPress sem a necessidade de passar por softwares adicionais para redimensioná-las. Basta ter um browser atualizado.
<ul>
<li>Funciona com Drag & Drop!</li>
</ul>
Exemplos de Browsers são: Chrome, Firefox, Opera, IOS e Android.
Ele adicionará configurações adicionais em CONFIGURAÇÕES -> MÍDIA onde você pode especificar a qualidade do JPG redimensionado e largura e altura máximas para cada imagem enviada.
Trazido para você por DevHouse – Internet Software Development House: http://www.devhouse.com.br

Client Side Image Resize

Uses HTML5 to resize large images before uploading to server.

ImageScaler Modded vs Client Side Image Resize