PNG transparency creator.

PNG stores an alpha channel beside the red, green and blue of each pixel, so a pixel can be opaque, invisible or anything between. JPG has no such channel, which is why a transparent image is always a PNG on the web. This tool writes that channel: matched pixels get an alpha of 0, smoothed edges get a value between.

Anything your browser can decode: PNG, JPG, WebP, GIF, AVIF, BMP, ICO and SVG. The output is always a PNG, because it is the common web format that stores an alpha channel; JPG has none. Start from the sharpest source you have, since compression artifacts around edges widen the tolerance you need.

This tool selects by color, which is exact and fast when the background is one flat tone: a white studio sweep, a green screen, a logo on a plain fill. Machine-learning removal finds the subject instead and works on busy photos, but it guesses at edges and runs a model. For a solid background, color selection gives a cleaner cut.

Files up to 100 MB are accepted, and the real limit is your device's memory: every pixel is held as four bytes, so a 4,000 by 4,000 image takes 64 MB to process. Most phones and laptops handle that in under a second. The result keeps the original pixel size.

When an image loads, the tool samples its border and picks the most common color there, which is the background in nearly every product shot, logo and scan. Open the picker to change it, type a hex code, or press From edges to sample again after you have changed it.

Tolerance decides how close a pixel's color must be to the picked color to become transparent, as a percentage of the distance between black and white in RGB. At 0 only an exact match goes; at 10 to 20, nearby shades go too. Raise it when a background has gradients, shadows or JPG noise, and lower it when it starts eating into the subject.

With Outer only on, the tool flood-fills from the four edges of the image and only pixels connected to the border become transparent. The same color inside the subject stays: white text on a logo survives the removal of its white background. Turn it off to remove the color everywhere, including enclosed areas.

Smooth edges blends the boundary between the removed area and the subject: within the chosen radius, pixels are made partly transparent instead of fully, so the cut is anti-aliased rather than jagged. A radius of 1 or 2 pixels suits logos and screenshots; 4 or more softens photos. It only affects pixels that were already going to be removed.

Preview mask paints every pixel that will be removed in magenta over the original, so you can check the selection before downloading. Adjust the color and tolerance until only the background is covered, then turn the mask off: the download is always the real transparent PNG, never the magenta preview.

No. Your browser decodes the file and does the pixel work with its Canvas API, and the page makes no request with it. You can load the page, go offline and keep working; the download is written from memory on your device.

No. The PNG transparency creator is free and opens without a sign-in, an account or an install.

Nothing. The PNG transparency creator holds your input in the page's memory, so closing or reloading the tab clears it, and it saves nothing in this browser.

No, it takes one file at a time. If you drop or choose several, only the first is used; run the tool again for the next one.

The edit is written as a PNG because PNG stores every pixel exactly, with a full alpha channel, so the result can be edited again without a second round of loss.

No. The browser decodes the image and the tool writes a new file from its pixels, so camera EXIF, GPS position and text chunks in the original are not copied into the result. Keep the original file if you need them.

No. The result has the same width and height in pixels as the source.

Closest to the PNG transparency creator: PNG background remover, Remove a white background from a PNG, Transparent logo maker, PNG color replacer. Each opens on its own page, free and in the browser.

The PNG transparency creator is one of 47 in its group. The group's page, /tools/png, lists them all.

The tool is free. Its interface is built from shadcn.io's own components (Button, Input, Slider and the rest of the registry under /ui), which come in React, Vue, Svelte and Solid. Pro adds the blocks and templates for the product around it.