Photo Flipper - horizontally or vertically - free online tool

Glow photo - Make Shiny photo by applying Glowness filter

Grayscale Photo converter - Apply shades of Gray on color photo

HSL adjustment on photo - HUE / Saturation / Lightness adjustment on photo

Invert or upside down the photo - free online tool

Negative or Reverse the color of each pixel in photo - Free online tool

Make Noisy photo - introduce fake noise on photo - free online tool

Remove Noise dots on long exposured photo or shoot at high ISO setting photo - Free online tool.

Photo Brightness adjustment - free Online tool