SATURATION
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OneImageTool
Free Image Tools
SATURATION
Make colors pop or pull back an oversaturated look with one slider on JPG, PNG and WebP.
or click to browse — JPG, PNG, WebP
Preview
color intensity
Each pixel is pushed away from, or pulled toward, its own grey point — the luminance value it would have in black and white. Hue never moves and brightness never moves; only the distance between the colour and its grey changes. That is why saturation can look wrong but never looks like a different colour.
The consequence worth knowing: at 0% you land exactly on the greyscale tool, because pulling every pixel all the way to its luminance is what greyscale conversion is. Anything above 100% is extrapolation, and extrapolation runs out of room — channels clip at 255 and skin turns orange long before the rest of the frame looks over-saturated.
three steps
A JPG, PNG or WebP. Flat camera JPEGs and phone screenshots are the usual candidates; anything already graded rarely needs this.
100% is untouched, lower is muted, higher is vivid. Judge it on the most saturated object in the frame rather than the overall impression — that object clips first, and once it clips the detail inside it is gone.
Export as PNG for a lossless copy, or JPG and WebP with a quality slider for the web.
quick answers
Every pixel collapses onto its luminance value, which is the same result the greyscale tool produces. Brightness is unchanged; only the colour information goes.
Not the hues. It only increases the distance from grey, so a blue stays blue and simply becomes a stronger blue — until a channel hits 255 and clips, at which point the hue does start to drift.
Around 130% is safe on most photographs. Past 150% reds and skin tones clip first and go plastic, and a product shot pushed that far no longer shows the colour the buyer will receive.
Usually because the problem was contrast rather than colour. A flat, hazy image reads as dull, and saturating it makes it garish and still flat. Fix exposure with adjust brightness first.
No. Vibrance protects already-saturated areas and skin tones, boosting only the muted parts. This is plain saturation — it scales everything by the same factor, which is more predictable and less forgiving.
No. The slider runs on a canvas in your browser.
Yes — free with no watermark.