iPiccy Photo Editor - iPiccy is an online service that allows you to edit photos in your browser. This Chrome plugin installs the app in your browser so that you do not need to load the web-page each time.

It has features like curves, clone tool, background eraser, dodge, burn, levels and liquify tools.

Fotor - This editor is a good one to make basic editing like cropping, rotating, straightening, tuning, adjusting brightness, contrast, sharpness, saturation, exposure, temperature, etc.

Pixlr Editor Online - Pixlr is a cloud-based set of image tools and utilities, including a number of photo editors, a screen grabber browser extension, and a photo sharing service. The suite was intended for non-professionals, however the apps range from simple to advanced photo editing.

PicMonkey - A consumer-oriented online editor, conveniently lets you choose the output quality of the image right at the point of upload and, in primate motif, you can choose from Jack, Bubbles, and King Kong as shorthand for various quality levels. Each PicMonkey setting opens to additional controls that let you customize the edit, and like Fotor, you have to complete one task before moving to the next.