PicMonkey (picmonkey.com) is a free online photo editor that is able to import photos from your Mac, or a Dropbox, Facebook or Flickr account. It includes an auto-adjust feature that enables you to make one-click improvements to your images. It also includes tools that enable you to crop, sharpen, resize and adjust the colours in your photo.
The app’s portrait tools enable retouching of skin, removing blemishes and even giving someone a spray tan. You can dramatically alter the look of your pictures with a cross-process effect, giving them unusual contrast and colours, and you can embellish them with text, an overlaid texture or a frame.
The basic editing tools are free, though you’ll have to put up with banner ads. For $4.99 (about £3) per month or $33 (about £21) per year, the Royale version removes ads and has more filters, fonts, and themes.
You don’t even have to register to use the editing tools in the free version of PicMonkey.