Why a JPG can't just be transparent
JPG has no transparency at all. Every JPG is a full rectangle, so a logo saved as JPG always comes with a white box around it. Put it on a colored slide, a website header, a T-shirt mockup or a letterhead and the box shows. Simply renaming or converting the file to PNG doesn't help, because the white pixels are still there.
This page removes those pixels. It finds the background color and makes it transparent, then saves the result as PNG, the usual format that keeps transparency. It's the same tool as Remove white background, set up for this common job.
What it works well on
It works by color, without AI. That makes it reliable for flat artwork on a uniform background: company logos, icons, handwritten signatures photographed or scanned on white paper, rubber stamps, line drawings, charts and screenshots. Signatures are a frequent case: a transparent PNG signature can be placed over a PDF or a Word document without hiding the lines underneath.
It's not meant for photos of people, pets or products. It doesn't recognize objects, so backgrounds with texture, shadows or gradients come out patchy. For those, a photo editor with subject selection is the right tool.
Getting a clean edge
JPG compression leaves faint off-white pixels around shapes. The tolerance setting decides how close to white a pixel must be to disappear. If a pale halo stays around the artwork, raise it a little; if light parts of the logo start to vanish, lower it.
The default mode removes only the background connected to the edges of the image, so white areas inside the design, like the eyes of a mascot or white text on a colored badge, are kept. The second mode removes every pixel of that color, which suits the inside of letters such as O and A in a wordmark. You can also fill the background with another color instead of making it transparent.
Private and free
Everything happens in your browser: your images are not uploaded or stored, and there's no account and no watermark. You can process several JPG files at once with the same settings and download them together.
Once you have the transparent PNG, you can keep going from the result without selecting it again: resize it for a website or an email signature, crop away extra space around the artwork, or turn it into a vector file with Image to SVG if you need a logo that scales to any size or a design for a cutting machine.