Apply shades of Gray on color photo
Photo Darkening tool - Darken the bright photo quickly - free online tool
Desaturate photo tool - Completely Desaturate a color photo online
Emboss photo quickly - Apply Emboss effect on photo online
Photo Flipper - horizontally or vertically - free online tool
Glow photo - Make Shiny photo by applying Glowness filter
HSL adjustment on photo - HUE / Saturation / Lightness adjustment on photo
Invert or upside down the photo - free online tool
Photo Lighten tool - Lighten up the dark photo online
Negative or Reverse the color of each pixel in photo - Free online tool