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Saturate Image

Adjust an image colour saturation locally - more vivid or muted, with a slider. Format preserved. No upload.

Saturation

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    Running locally on your device ...

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    Your files never left your device

      Is my file uploaded?

      No. Everything runs in your browser - your file never leaves your device. How this is verifiable

      No upload100% local
      Your content stays with youno third-party access
      Servers in GermanyGDPR by design
      Independently auditedTLS A+ · HTTP headers A+

      Saturation controls how intense the colours are. This tool lets you push colours to be more vivid or pull them toward grey with a single slider from -100 to +100. At 0 the image is unchanged; at -100 it becomes fully greyscale; positive values make the colours pop.

      Adjusting saturation is useful to revive a flat, dull photo, to tone down oversaturated colours, or for a stylistic look. The brightness of each pixel is kept while only the colour intensity changes. The output keeps your original format and dimensions - a PNG stays a PNG (with transparency), a JPEG stays a JPEG.

      Everything runs entirely locally in your browser on a canvas (no upload, even offline) - your image never leaves your device. Very strong positive values can clip the most vivid colours; moderate adjustments usually look most natural. Animated images are flattened to a single frame.

      Specifications

      Specifications
      Input formatsJPG, JPEG, PNG, WEBP
      Output formatJPG
      Batch processingYes
      ProcessingLocally in your browser (JavaScript)
      File uploadNone

      In 3 steps

      1. Drop or tap your image (PNG, JPEG or WebP).
      2. Set the saturation slider (-100 muted to +100 vivid).
      3. Download the adjusted image (several at once as a ZIP).

      Limitations: Scales colour saturation around each pixel luminance, with an amount from -100 (fully greyscale) to +100 (more vivid); 0 leaves the image unchanged. The original format and dimensions are preserved (PNG keeps transparency; JPEG flattens onto white). Very strong values can clip vivid colours. Animated inputs are reduced to a single frame.

      FAQ

      Is my image uploaded?

      No. The adjustment runs entirely locally in the browser on a canvas - even offline. Your image never leaves your device.

      What does -100 do?

      An amount of -100 removes all colour, leaving a greyscale image. Positive values increase colour intensity; 0 leaves the image unchanged.

      Does saturation change brightness?

      No. It keeps each pixel brightness and only changes how intense the colours are, so the image does not get lighter or darker.

      Does it keep my format and size?

      Yes. A PNG stays a PNG (with transparency), a JPEG stays a JPEG, and the dimensions are unchanged.

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