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Image to CSS Background

Turn an image into a ready-to-paste CSS background rule.

Image Tools Reviews Free · no sign-up

Drop an image here, or click to choose one

JPEG, PNG, WebP, GIF or SVG · processed on your device, never uploaded

Quick Tool Overview

Image to CSS Background writes the complete background rule — size, position, repeat and attachment in the right order — and offers the image either as a url() reference or inlined as a data URI, with the size of each shown so the choice is a number rather than a guess.

What it does
Generates a CSS background rule for an image
You give it
An image and the properties you want
You get back
Ready-to-paste CSS
Best for
Hero sections, textures and small icons
Image Tools Free, unlimited use No sign-up Runs in your browser

About the Image to CSS Background

Writing a background rule by hand means remembering the order of background-size, position and repeat, and then deciding whether the image should be a separate request or inlined.

Both are handled here. The rule is generated with the properties you actually chose, in the right order, and the image is offered either as a normal url() reference or inlined as a data URI. The tool is explicit about when inlining is worth it: below about 5 KB the saved request usually wins, above it the 33 percent Base64 overhead and the loss of separate caching do not. The size of both versions is shown so the decision is a number rather than a guess.

Key features of the Image to CSS Background

Both encodings, both sizes

A file reference and an inlined data URI, with the byte cost of each so the trade-off is visible.

Says when to inline

Under about 5 KB the saved request wins; above it the 33 percent overhead and lost caching do not.

Live preview

Size, position and repeat are shown applied to a real box, which is faster than guessing at cover versus contain.

Correct property order

The rule is assembled properly rather than left for you to remember.

Explains img versus background

The page is clear that content images belong in an img tag where they can be described and lazy-loaded.

How to use the Image to CSS Background

  1. 1

    Add the image

    Anything you intend to use as a background.

  2. 2

    Set the properties

    Size, position, repeat and attachment, with a live preview.

  3. 3

    Choose file or inline

    The size of each is shown so the trade is visible.

  4. 4

    Copy the rule

    Paste it straight into your stylesheet.

Frequently asked questions

When it is under about 5 KB and always needed — an icon or a small texture. Base64 adds 33 percent and the image can no longer be cached separately from the CSS.

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