oMyImage
Login

Grayscale Image

Convert images to grayscale (black & white) online — with adjustable intensity, a live preview and batch support. Free, fast and 100% private in your browser.

Select images

or drop JPG, PNG or WEBP images here

Processed in your browser — your images never leave your device.

More tools

All-in-One Image EditorWatermark ImageMeme GeneratorHTML to Image

Give your photos a timeless black-and-white look. oMyImage's Grayscale Image tool desaturates any image right in your browser, with an intensity slider for everything from a subtle fade to a full monochrome conversion. Process one image or a whole batch and download instantly — nothing is uploaded, so your images stay private.

How to convert an image to grayscale

  1. 1

    Upload

    Select one or many images, or drag and drop them into the workspace.

  2. 2

    Adjust intensity

    Use the slider for a full black-and-white look or a partial desaturation, with a live preview.

  3. 3

    Convert & download

    Click Grayscale — one image downloads directly, several download together as a ZIP.

Grayscale Image features

Adjustable intensity

Go fully black & white or partially desaturate with a smooth 0–100% slider and instant preview.

Batch convert

Apply the same grayscale to a whole batch of JPG, PNG or WEBP images and download them as a ZIP.

100% private

Everything runs in your browser with HTML canvas — your images are never uploaded to a server.

Security & privacy

Your images stay private. Grayscale conversion happens entirely in your browser with HTML canvas — nothing is uploaded to a server. No storage, no tracking of your files.

Frequently asked questions

What does the intensity slider do?

At 100% the image is fully black and white; lower values blend the original colors with gray for a faded, partially-desaturated look.

Can I grayscale many images at once?

Yes. Add as many as you like — a single image downloads directly and multiple images download together as a ZIP.

Which formats are supported?

JPG, PNG and WEBP, and you can choose the output format independently of the input.

Is it free and private?

Yes. No sign-up and no watermark, and every image is processed locally in your browser.