Image hover state opacity.

CSS opacity fades the whole element, text and icons included. A pre-faded image dims only the picture, keeps overlays crisp, and saves repaints on a hover-heavy gallery.

100 to 70% for a subtle dim, 100 to 50% for a clear change, 100 to 30% for a dramatic reveal. The dimmed state makes overlay text and icons prominent.

Load both images and swap on :hover with CSS, or use data attributes and a little JavaScript for control over the timing.

Yes. A dimmed image lets a CSS overlay color come through more strongly; make the dim here and add the color in CSS.

Stores often use 100 to 60% with text appearing on hover: the dimmed product image becomes the backdrop for a Quick View button.

A bottom fade on the hover state makes room for text at the bottom edge, product names or buttons, without covering the main visual.

No. The browser decodes the file, a canvas does the work and the result is built on your device; the page makes no request with your image. You can load it, go offline and keep working.

The edit is written as a PNG so nothing is lost: it keeps every pixel and the alpha channel exactly. Run the result through the WebP compressor to get a WebP back for the web, usually 25 to 35% smaller than the PNG.

No. The "Image hover state opacity" tool is free and opens without a sign-in, an account or an install.

Nothing. The "Image hover state opacity" tool 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 "Image hover state opacity" tool: WebP opacity changer, Thumbnail gallery fade, E-commerce product image toning, PNG opacity changer. Each opens on its own page, free and in the browser.

The "Image hover state opacity" tool is one of 44 in its group. The group's page, /tools/webp, 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.