Semi-transparent PNG creator.

For a background texture, 5 to 15%: it adds depth without distracting. For a UI backdrop over content, 70 to 85%, so the content behind is muted but there. For a glass effect, 40 to 60%. The checkerboard preview shows the result; judge the real thing over your own content.

This tool makes the transparency layer: 50 to 70% opacity is the usual base. Frosted glass also needs a blur of what is behind, which is a property of the page or the design tool (a CSS backdrop filter), not of the image.

Yes. Drop the texture, apply 10 to 20% solid opacity and use the PNG as a CSS background image over a background color; the texture shows faintly through. One file serves any background color.

An alpha channel adds a byte per pixel before compression, but a translucent image with flat areas compresses well, and a simple overlay is usually smaller than a detailed opaque image. Run the result through the PNG compressor if size matters.

The new opacity multiplies the alpha that is already there. A pixel at 50% alpha, with 50% applied, ends at 25%; a fully transparent pixel stays fully transparent. So a logo on a transparent background keeps its background, and only the logo itself fades.

Solid applies the chosen opacity to every pixel. Linear fades from fully visible on one side to the chosen opacity on the other, in one of four directions. Radial fades in a circle from the center: with Edges fade the middle stays visible and the corners go, a vignette; with Center fades it is the reverse, a spotlight.

The result is drawn on a checkerboard, the usual way to show transparency, so faded areas show the squares through. To judge it over real content, download the PNG and place it on your page or in your design tool.

Drop any image your browser decodes: PNG, JPG, WebP, GIF, AVIF, BMP, ICO or SVG. The output is a PNG, since that is what stores the alpha channel; a JPG can't hold the fade.

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 Semi-transparent PNG creator is free and opens without a sign-in, an account or an install.

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

Up to 100 MB per file, the limit the tool states under its drop area. A larger file is refused with a plain message instead of being decoded.

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 Semi-transparent PNG creator: PNG opacity changer, Watermark opacity tool, Gradient transparency maker, PNG transparency creator. Each opens on its own page, free and in the browser.

The Semi-transparent PNG 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.