There are many Free Online Photo / image Editors. Most of these online image tools offer editing tools that go beyond simple resizing and rotation like creating image effects, optimizing images, creating animated Web banners, buttons, logos, and more. No need for desktop software; just upload your images and save the results to your computer.
35+ Free online photo editors you can choose from
Adobe Photoshop Express
Probably the best Online Photo editor with tons of features. Be warned about its excessive memory usage though.
Kroppr
An Online image cropping tool for your website. Unobtrusive script that allows users to rotate, resize, crop your images with minor changes to your site.
Picnik
Tons of special effects, from artsy to fun.
EasyCropper
It is regarded as the easiest online cropping tool. It just does cropping and hardly anything else.
FotoFlexer
Easy to use, integrates all the major online photo services, such as Flickr, MySpace, Picasa and Facebook.
Snipshot
A complete online editing tool for photos. it has both free as well as pro versions. resize, enhance, crop, rotate your images with ease.
Phixr
online photo editor with the ‘look & feel’ similar to desktop applications.
Resizr
Resizr is a free online image resize and crop tool with rotating capability.
Pixenate
basic image manipulation, 1-click fun effects.
Pic Resize
Batch resize, crop, blur, polaroid, some effects and more.
Aviary
From image editing to typography to music to 3D to video. All-in-one tool.
Splashup
It is a powerful editing tool and photo manager. With all the features professionals use and novices want, it’s easy to use, works in real-time and allows you to edit many images at once.
72Photos
crop, rotate, enhance, and add effects to images with 1-click.
Scrapblog
Combine your photos, videos, audio and text to create stunning multimedia scrapbooks.
Pixelmator
supports over 100 different file formats. You can open and save in PSD, TIFF, JPEG, PNG, PDF, EPS and scores of other image formats.
Preloadr
includes basic cropping, sharpening, color correction and other tools to enhance images.
FlauntR
1000’s of photo effects, fast, easy to use.
Wiredness
basic image manipulation, resize, image effects, text tools, shape tools
Pikipimp
blings, speech bubbles, fun effects.
PiccyFix
free, simple, easy-to-use web-based online photo, image and picture wizard. You can make your pictures darker, lighter, black and white, color, or sepia tone, and add simple effects, resize, shrink, rotate, flip then save in jpg/jpeg,gif,png and bmp formats.
LunaPic
It contains drawing tools, effects, animations, and much more.
OnlinePhotoTool
Resize, crop, add text, sharpen, rotate, colour balance, saturation, paint, curves, cloning, recoloring, auto-levels and more.
Mixbook
integrates with popular photo storage sites and search engines to make it even easier to get your photos into a book, makes creating a photobook easier than ever before.
rsizr
Intelligent image resizing. That’s it!
SlideRocket
manage and share libraries of slides and assets and deliver presentations in person or remotely over the web.
Rasterbator
Rasterbator creates huge, rasterized images from any picture. Upload an image, print the resulting multi-page pdf file and assemble the pages into extremely cool looking poster up to 20 meters in size.
Pikifx
Resize and Crop your photo, add creative effects to photos, borders, text and more.
Picture2Life
Edit, Collage, Animate and Share your pictures online
Sprout
create living content including banners, videos, photos, RSS feeds, calendars and more.
Pixer.us
Allows basic operations like resizing, cropping, rotating, flipping as well as color adjustments and special filters.
Mypictr
provides a free picture resizing service, which allows you to create a custom profile avatar for your favorite social network.
Graphita
a simple, commonly requested effects and add-ons. Have fun!
MyImager
crop, resize, effects, draw – but files can not be larger than 500 KB.
Ref: Visual-blast