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Sepia Filter

Apply sepia tone effect to images

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About Sepia Filter

Sepia Filter gives a picture the warm brown cast of early photographic prints. It uses the color matrix of the CSS sepia() filter: each new red, green, and blue value is a weighted mix of the three old ones. The Intensity slider blends between the original colors (0) and full sepia (100, the default), so you can keep a hint of the original color. There is no grain, fading, or vignette in this filter. Transparency is untouched. The toning runs in your browser.

How to apply a sepia tone

  1. 1Click the upload box and choose the photo to tone.
  2. 2Set "Intensity": 100 is full sepia, lower values keep part of the original color.
  3. 3Click "Apply sepia".
  4. 4Check the preview and click "Download"; the toned picture keeps a JPG, PNG, or WebP format and turns any other format into PNG.

Formats and limits

Matrix
Red = 0.393 R + 0.769 G + 0.189 B; green = 0.349 R + 0.686 G + 0.168 B; blue = 0.272 R + 0.534 G + 0.131 B
Intensity
From 0 (unchanged) to 100 (full sepia), default 100
Input formats
JPG, PNG, WebP, GIF, BMP, AVIF, and similar pictures the browser reads
Output format
JPG back as JPG at quality 92, PNG and WebP unchanged in type, the rest as PNG
Largest image
Photos beyond 268 MP are refused

Where your image is processed

The sepia matrix is applied by this page in your browser and the photo is not uploaded. The toned image stays in the tab until you download it. Error messages shown by the tool reach us as cleaned text, tagged with the tool and with the browser's name and version.

Frequently asked questions

What does an intensity of 50 do?

50 puts each pixel halfway between its original color and full sepia. At 100, the default, the full sepia matrix is used; at 0 the picture is unchanged.

Is it the same as the CSS sepia filter?

Yes. It uses the matrix of the CSS sepia() function from the Filter Effects specification, so at 100 it gives the same colors as a browser's sepia(1). It adds no grain or vignette.

Does the toned picture keep its transparency?

Yes. Only red, green, and blue change; the alpha channel is kept, so a transparent PNG or WebP keeps its see-through areas. A JPG has no transparency to keep.

Tips and tricks

  • ✓For an aged-photo look, add grain with Add Noise to Image and darken the edges with Add Vignette to Image after the sepia.

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