A responsive image polyfill
#images
jquery.adaptive-backgrounds.js
jquery.adaptive-backgrounds.js
A jQuery plugin for extracting dominant colors from images and applying it to its parent.
Pixlr.com
Pretty amazing Photoshop-esque online image editor. Has most anything you “normally” use for basic image editing (including layers, cropping, selections, resize, etc etc), in a Photoshop ish package.
Placehold.it
“Quick and simple image placeholders”. Retrieve a dynamically generated image to use in mockups etc based on dimensions included in a URL.
SpriteMe
“Background images make pages look good, but also make them slower. Each background image is an extra HTTP request. There’s a fix: combine background images into a CSS sprite. But creating sprites is hard, requiring arcane knowledge and lots of trial and error. SpriteMe removes the hassles with the click of a button.”
Scissors
“This plugin adds cropping and resizing functionality to WordPress’ image upload and management dialogs. Scissors also allows automatic resizing of images when they are uploaded and supports watermarking of images. Additionally, images that are resized in the post editor are automatically resampled to the requested size using bilinear filtering when a post is saved.”
SUMO Paint
“Online Image Editor”. It’s like Photoshop, on the web.
Poladroid
Really cool app that turns photos into old-style Polaroid photos. Has a very funky interface/UI where you wait for the photo to develop and then stop it at a certain moment, so you always get different outputs.