ResizePixel - Free image editor to crop, resize, flip, rotate and convert images online
Icons8 Background Remover - Quickly remove the background from any photo
Bulk Resize Photos - Resize large photos in bulk
IMG.LY - Power Your Apps with IMG.LY | The Leading Provider of Design, Photo, and Video Editing SDKs
PQINA Photo Editor - A free, fast, mobile-friendly, online photo editor to quickly edit pictures.
ClippingMagic.com - Remove image backgrounds online. Make backgrounds transparent, white, etc. Edit, crop, rotate, fix colors, add shadows, all you need for great photos!