IMG online - Service for simple and high-quality image processing online. Here you can change the image size in pixels, megapixels, compress JPEG file, automatically or manually improve quality of picture, add various effects.
ResizePixel - Free image editor to crop, resize, flip, rotate and convert images online
Fotor - Fotor is an all in one visual platform. It includes photo editor, collage maker, and graphic designer. You are free to make a visual look more beautiful.
Img2Go - Img2Go - This webservice allows you to edit and convert images online. This is the free web solution for your photo editing, image conversion, and more.
LunaPic - Free and Easy to use online image effects. Try the effect.
ON1 Photo RAW - All-in-one photo editor and raw processor.