Three sliders for hue, saturation and lightness on one screen, with presets for faded, rich, warmer and cooler looks and a live comparison against the original.
Converts every pixel to hue, saturation and lightness, applies your three offsets, and converts back. Hue rotates the colour around the wheel by up to half a turn either way, saturation adds or removes colour strength, and lightness moves the pixel toward white or black. Because the three changes happen in one pass you can, for example, shift a scene cooler, calm its colour and lift the shadows together and see the combined result immediately rather than running three tools in a row.
A 3000 × 2000 photo of a sunlit café with orange walls and a blue awning. Hue −10°, saturation +15, lightness +5 gives a warmer, richer version for a poster. Hue +12°, saturation −30, lightness +12 gives the pale, cool, slightly washed look common on lifestyle blogs. Saturation −100 with lightness −8 makes a moody black and white. Each takes under a second on a laptop, and the JPEG stays close to its original size because the pixel dimensions do not change.
Use it when a picture needs more than one colour fix, or when you want to explore looks quickly with the presets. If only one slider matters, the single-purpose tools are simpler: Adjust Hue has a full 0 to 360° range with a colour bar, Change Saturation works in percent of the original, and Change Vibrance is the safer choice for skin. For brightening a genuinely underexposed photo, Change Exposure keeps blacks black where the lightness slider here would grey them.
Hue is in degrees, so ±30 is a noticeable warm or cool shift and ±180 swaps every colour for its opposite. Saturation and Lightness add a fixed amount from −100 to +100 to each pixel’s value; small steps of 10 to 20 go a long way. The chips set all three at once: Faded, Rich, Warmer, Cooler and B&W. Reset all returns the sliders to zero without removing the picture. Output formats and quality behave as in every other image tool.
What is the difference between lightness here and brightness or exposure? Lightness adds a fixed amount to every pixel's HSL lightness, so blacks lift and whites clip at the same rate. Change Exposure scales values the way a camera does and keeps blacks black. For a dark photo, exposure usually looks more natural; for a graphic or a screenshot, lightness is more predictable.
Can I adjust only the reds or only the blues? Not here; these three sliders act on every pixel. For per-colour work rotate the hue to bring the target colour to where you want it, or use Adjust Color Channels and RGB Channels, which change red, green and blue separately.
Why do the hue and saturation sliders do nothing on a black and white photo? Grey pixels have no hue and zero saturation, so there is nothing to rotate or strengthen. Use Colorize Image to add a tint to a black and white picture.
Does anything get uploaded? No. The conversion to HSL and back runs in your browser. It works with the network off.