What's the difference between the filters?

Grayscale removes color, sepia adds a warm brown tone, and invert flips every color to its opposite.

What does the strength slider do?

It blends the filtered result with the original, so you can apply the effect partially or fully.

What format is the download?

The filtered image is saved as a PNG to keep quality high.

Will it change my original file?

No. The tool works on a copy in the browser; your original file is untouched.

Is my image uploaded?

No. Everything happens in your browser and the image never leaves your device.

Image Grayscale & Filter

Choose an image

Your image is processed in your browser and never uploaded.

Related external sites

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Apply a classic image filter — grayscale (black and white), sepia, or color invert — to any photo, with a slider to control how strong the effect is. The result previews instantly and you can download it. Everything runs in your browser; your image is never uploaded.

How to use

Choose an image from your device.
Pick a filter and adjust the strength slider.
Download the filtered image.

How it works

The image is drawn onto a canvas and each pixel is read. Grayscale replaces a pixel's color with its brightness using the standard luminance weights (more green, less blue, matching how eyes perceive light). Sepia mixes warm brown tones, and invert flips each color channel. The strength slider blends the filtered pixel with the original, so you can apply a subtle or full effect.

Features

Three filters

Grayscale, sepia and invert from a single tool.

Strength slider

Blend the effect from subtle to full intensity.

One-click download

Save the filtered image straight to your device.

Fully private

Images are processed in your browser and never uploaded.

When to use it

Avatars

Make a clean black-and-white profile picture.

Vintage look

Give photos a warm sepia, old-photo feel.

Design assets

Desaturate images to match a monochrome layout.

Printing

Preview how a photo looks in grayscale before printing.

Notes

Grayscale uses perceptual luminance, not a flat average.
Lower the strength for a partially desaturated look.
Downloads are saved as PNG to preserve quality.
All processing runs on your device; your image is never uploaded.

FAQ

What's the difference between the filters?: Grayscale removes color, sepia adds a warm brown tone, and invert flips every color to its opposite.
What does the strength slider do?: It blends the filtered result with the original, so you can apply the effect partially or fully.
What format is the download?: The filtered image is saved as a PNG to keep quality high.
Will it change my original file?: No. The tool works on a copy in the browser; your original file is untouched.
Is my image uploaded?: No. Everything happens in your browser and the image never leaves your device.