SVG theme color changer.

Drop the SVG and replace its dark colors (black, dark gray) with light ones for the dark-mode version; save it. Run it again the other way for the light-mode version.

It draws in black or a dark color. Pick that color and replace it with white or a light gray, and it shows on dark.

Use the same hex for every file: note the light theme color (#1a1a1a, say) and the dark theme color (#f5f5f5) and apply them consistently.

CSS variables color inline SVG and HTML, but can't reach inside a raster image. This makes a pre-colored PNG per theme, which you swap with a media query or your theme switch.

Run the SVG once per color that changes, building a full light version, then a full dark version; both become PNG assets to swap.

Start with the default assets, run each through with the other theme's colors, name them icon-dark.png and icon-light.png, and swap them in CSS or JavaScript by theme.

This tool takes one file at a time. For hundreds of icons, script it with a library such as Sharp or the Inkscape command line; use this for quick work and prototypes.

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 theme color changer is free and opens without a sign-in, an account or an install.

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 theme color changer: SVG color replacer, Change an SVG logo's color, Unify icon set colors, WebP recolor tool. Each opens on its own page, free and in the browser.

The SVG theme color changer 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.