Free Background Remover
Remove solid or simple image backgrounds locally with color tolerance, edge-connected selection and erase/restore cleanup. Preview and download PNG, JPEG or WebP. No signup required.
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How to remove a solid or simple image background privately
Remove a simple background with color selection, tolerance and edge-connected matching. Refine the result with erase and restore brushes, then export transparently.
- Choose an image or load the example. Click an opaque background pixel in the original preview, or select its color manually.
- Adjust color tolerance and the soft color transition. The default removes matching areas inside letters too. Enable edge-only protection when enclosed colors belong to the subject.
- Choose erase or restore and paint on the editing preview. Undo, redo or reset cleanup as needed; setting changes replay the strokes.
- Choose PNG or WebP to preserve transparency, or JPEG with a solid background. Wait for the current result size, then download.
Where simple background removal works best
Many images that need a transparent background were shot against one plain color. A logo scanned on white paper, a product photographed on a seamless backdrop, a signature on a clean page or an icon on a flat colored square are all good candidates.
An online seller can drop the white backdrop from product shots so they sit nicely on a colored banner. A club secretary can lift a logo off its white box to place it on a flyer. A teacher can cut a diagram from a scanned worksheet before adding it to slides.
Because the work happens on your own device, it is also handy for images you prefer to keep private, such as a scanned signature or an ID-style photo.
A worked example with real pixel values
Take a product photo on an off-white backdrop. You click the backdrop, and the chosen color is pure white, 255, 255, 255. You keep the default settings: color tolerance 20 and soft transition 10. Any pixel whose color distance is 20 or less becomes fully transparent. Pixels between 20 and 30 become partly see-through, and pixels beyond 30 stay as they are.
A light gray backdrop pixel of 240, 240, 240 has a distance of 15, so it is removed completely. A pale shadow pixel of 230, 230, 230 has a distance of 25. Its opacity becomes (25 minus 20) divided by 10, which is 0.5, so its alpha drops from 255 to 128.
A darker gray of 215, 215, 215 has a distance of 40, beyond the 30 limit, so it stays solid. If part of the product is also near white, raise protection by lowering tolerance or turning on edge-only removal.
How the color distance is measured
The tool compares each pixel with the chosen background color using straight-line distance in RGB color space. It takes the square root of the summed squared differences in red, green and blue, then divides by the square root of 3. This keeps the result on a 0 to 255 scale, so a tolerance of 20 means roughly 20 steps away from the target in each channel.
In the default mode, every matching pixel anywhere in the image is removed. With edge-only removal, the tool starts at the image borders and spreads only through neighboring pixels that match. A white area fully surrounded by the subject, like the inside of a letter O, is kept.
The erase and restore brushes then fix what the color rules miss. Brush size is set as 1 to 15 percent of the image's shorter side.
Common mistakes and how to avoid them
Setting tolerance too high is the most frequent problem. Light clothing, highlights and reflections may vanish along with the backdrop. Start low and raise it a few steps at a time.
Exporting as JPEG by mistake also catches people out. JPEG cannot hold transparency, so the removed areas are filled with the JPEG background color. Choose PNG or WebP when you need a see-through result.
Finally, check the result against the checkerboard preview at full size. Faint halos often only show when the image is placed on a dark background.
Useful tips and limitations
- This tool targets solid/simple color backgrounds, not semantic person, hair or complex-scene segmentation.
- All-matching removal can affect similarly colored subject areas. Lower tolerance and use Restore where needed.
- Increase the soft transition slightly if the cutout edges look jagged, since it fades nearby colors gradually instead of cutting them sharply.
- Keep the output dimensions at or below the source size, because enlarging an image does not add real detail.
Common questions
Can this lightweight remover isolate hair or people automatically?
No. It removes matching background colors and supports manual cleanup. Complex hair, fine transparent objects and varied scenes may need a dedicated segmentation editor.
What does edge-connected background removal protect?
It removes matching pixels reachable from an image edge. Enclosed matching colors in the foreground are usually kept, unless connected through a matching path.
How do I save a background-removed image with transparency?
Select PNG or WebP. JPEG does not support transparency, so the export fills transparent areas with the chosen JPEG background color.
What image sizes can I use?
Each image can be up to 30 MB and 12 million pixels, and the output is limited to 12 megapixels.
Do my brush edits survive if I change the tolerance?
Yes. Manual strokes are replayed after setting changes. Loading a new image or resetting clears them.
Can I remove a background that has two different colors?
The tool removes one chosen color range at a time. For a second color, use the erase brush on those areas, or export and run the result through the tool again with the other color selected.
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