Background Remover by Yoshinya

Guide

How to use the tool

1. Drop your images onto ① Add images, or click it to choose them. JPEG, PNG and WebP all work, and you can add many at once.
2. The background colour is found from the edges of each image and removed straight away. Check the result under ③ Check and save — switching the preview to Black or White shows any fringe left around the edges.
3. If part of the background is left behind, such as the inside of an O, click it in the preview and it goes too. Clicked the wrong spot? Press Undo the last click.
4. If too little or too much disappears, adjust Tolerance under ② Adjust what gets removed.
5. Press Save this image for the one on screen, or Save all as ZIP for every image. Everything is saved as PNG.

When is it useful?

• A client sent their logo on a white or coloured background, and the website puts it on a different colour.
• Placing a logo or an icon on a slide or a flyer without a box around it.
• Turning a scanned signature or a seal into an image you can lay over a document.
• Cutting out illustrations, stamps and stickers drawn on a plain background.
• Preparing product images shot on a solid-colour backdrop for an online shop.

What each setting does

Only the background around the edges

Removes the background colour only where it connects to the edges of the image. A white logo on a white background keeps its white. Enclosed areas, such as the inside of an O, stay until you click them.

That colour everywhere in the image

Removes every pixel close to the background colour, wherever it is — enclosed areas included. Any part of the subject in the same colour goes too.

Tolerance

How different a colour may be from the background and still count as background. Raise it when specks or a faint shadow are left behind; lower it when the edges of the subject start to disappear.

Smooth the edges

Edge pixels are usually a blend of the subject and the background. This makes them partly transparent and takes the background’s colour out of them, so no white line shows on a dark page. Turn it off for pixel art, where every edge should stay sharp.

Images it suits, and images it does not

It works on any image whose background is one flat colour — not only white. Logos, illustrations, icons, stamps, scanned signatures and seals, and products shot on a solid backdrop all come out cleanly. A photo with an uneven background — a gradient, a shadow, a room — is a different job: there is no single colour to remove, and it needs a tool that recognises the subject itself.

Privacy and security

Your images are read, processed and saved as PNG inside this tab. They are never sent to a server and nothing is kept on this device, so closing the tab clears them. Only the three settings are remembered here, so the next visit starts where you left off. The analytics record only how many images were added and saved, never the images, their names or their colours.

Frequently asked questions

Does it only work on white backgrounds?

No. Any background that is a single colour works — black, navy, a brand colour or a green screen. The colour is found from the edges of each image, so a batch with different background colours needs no setting changes.

Why is the inside of letters like O and A still filled in?

Because it is not connected to the background around the edges. Click it in the preview to remove it as well, or choose That colour everywhere in the image.

Part of my logo disappeared as well. What do I do?

The logo shares a colour with the background. Lower Tolerance, and if That colour everywhere in the image is selected, switch back to Only the background around the edges.

There is a thin light line around the edges.

Check that Smooth the edges is on, then raise Tolerance a little. Switching the preview to Black makes a light fringe easy to see.

Can it cut a person out of a photo?

Not this tool. It removes a single background colour, so a photo with an uneven background will not come out cleanly. A cut-out that recognises the subject itself is planned as a separate feature.

Why PNG?

JPEG cannot store transparency, and PNG opens everywhere — in browsers, Office, Canva and design tools alike. The file keeps its name with a .png extension.

Are my images uploaded anywhere?

No. Reading, removing the background and saving all happen in your browser, and nothing is sent to a server — unreleased logos and client material are safe to use.

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