SVG decorative background maker.

3 to 8 percent for a barely-there texture that adds depth; 10 to 15 for a visible but still quiet presence. Above 20 the decoration starts competing with the content.

Geometric patterns, abstract shapes and brand illustrations. Detailed imagery turns muddy at low opacity; simple, bold vectors fade well.

A radial fade, stronger in the middle, makes a natural focal point; a flat opacity suits tileable patterns; a linear fade gives a direction.

Export at a generous size and place it with CSS background-position: the bottom right corner, behind hero text, or centred behind the content.

Yes. Export several at different opacities and stack them with multiple background-image declarations, the lower layers stronger.

Make two: a darker drawing at low opacity for light backgrounds and a lighter one for dark, and swap them with a media query or your theme switch.

The browser draws the SVG to pixels at the size it declares (its width and height, or its viewBox), and the tool works on those pixels. The result is a PNG, not an SVG: for a larger output, set a larger width and height on the SVG first, with the SVG editor.

No. The file is read and drawn by your browser, and the page makes no request with it. You can load the page, go offline and keep working; nothing is stored either, so reload and it is gone.

No. The SVG decorative background maker is free and opens without a sign-in, an account or an install.

Nothing. The SVG decorative background maker holds your input in the page's memory, so closing or reloading the tab clears it, and it saves nothing in this browser.

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 SVG decorative background maker: SVG opacity changer, SVG illustration toning, SVG to styled PNG, Vector fade effect converter. Each opens on its own page, free and in the browser.

The SVG decorative background maker is one of 45 in its group. The group's page, /tools/svg, 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.