Private browser utility / Images

Image Color Replacer

Runs entirely in your browser - no upload, no sign-up.

Live workspaceLocal processing

Drop an image to recolorPNG, JPG or WebP · Up to 25 MB and 12 megapixelsYour image stays in your browser.

01 / Overview

What is an image color replacer?

An image color replacer swaps a chosen color for another across a picture. Add a PNG, JPG, or WebP, sample the source color, and choose its replacement. Adjust tolerance to include nearby shades, compare the original with the result, then download a PNG with the same dimensions and transparency.

How to use

01
Choose your image
Drop a PNG, JPG, or WebP into the editor, or try the sample artwork. Your file is decoded locally.
02
Choose the two colors
Click a visible pixel in the original image or enter its HEX code. Set the replacement using its color picker or HEX field.
03
Adjust and apply
Start with a low tolerance. Apply replacement, compare both previews, and increase tolerance if nearby shades were missed.
04
Save the PNG
Download the current result. Changing a setting disables the download until you apply it, so the saved file matches your preview.

Who it's for

Update a brand color in a flat logo without rebuilding the artwork.
Recolor icons, diagrams, and pixel art while keeping their transparent background.
Try alternate colors for a slide illustration or social graphic.

Matching uses Euclidean distance in Oklab color space. The tolerance value is 100 times that distance; zero matches only identical RGB values. Pixels inside the threshold receive the exact replacement RGB color while their alpha channel stays unchanged. Fully transparent pixels are ignored.

Each application starts from the original image, so repeated adjustments do not accumulate damage. This is a flat-color editor: it does not isolate objects or retain shadows, texture, or gradients inside a matched area. No file or pixel data is sent to a processing server.

FAQ

Is my image uploaded to a server?

No. The browser decodes, samples, recolors, and exports your image on your device. The tool does not send the file or its pixels to a processing server.

Is the image color replacer free?

Yes. Color replacement and PNG downloads are free, with no account, watermark, or usage credits. The same file and dimension limits apply to every image.

Which image formats and sizes can I use?

Use PNG, JPG, or WebP files up to 25 MB and 12 megapixels. Each side must be at most 8,192 pixels. Output is always a static PNG at the original decoded dimensions. Animated files are reduced to the frame exposed by the browser decoder.

How does tolerance affect color replacement?

Zero replaces exact RGB matches only. Higher values include colors within a larger Oklab distance from your source color, including differences in lightness. The scale runs from 0 to 100 and is not a percentage of selected pixels. Apply the setting to inspect the matched count.

Will it preserve a transparent PNG background?

Yes. Replacement keeps each pixel's existing alpha value, including partial transparency. Fully transparent pixels are skipped. The checkerboard is only a preview backdrop and is not added to the downloaded PNG.

Can I change only one object in a photograph?

Matching applies to the whole image, so every visible pixel within tolerance is replaced, wherever it occurs. The tool works best for flat graphics. It does not identify objects, preserve photographic shading, or provide a brush selection.

Why does a JPG leave speckles around the changed color?

JPEG compression and anti-aliasing create neighboring colors along edges. An exact match misses those pixels. Increase tolerance in small steps and check both previews. Starting with an original PNG usually gives a cleaner result than a compressed JPEG.