CSS Box Shadow Generator
Create CSS box-shadow effects visually with a live preview, and copy the code. No signup. Ideal for web designers and developers styling shadows on elements.
This CSS box shadow generator creates box-shadow effects visually, with a live preview, directly in your browser. Adjust the shadow until it looks right, and copy the box-shadow CSS. No account, no install, so web designers and developers can design shadows on any device in seconds, without writing the CSS by hand.
How to Generate a Box Shadow Step by Step
- Adjust the shadow. Use the controls to adjust the shadow's offset, blur, spread and colour, shaping how it falls and looks around the element.
- See the live preview. Watch the preview update as you adjust, showing exactly how the shadow will look, so you can shape it precisely by eye.
- Fine tune the effect. Refine the offset, blur, spread and colour until the shadow has the depth, softness and look you want for your design.
- Copy the CSS. Once the shadow looks right, copy the generated box-shadow CSS, which produces exactly the shadow shown in the preview.
- Paste it into your styles. Add the copied box-shadow to your element's CSS, applying the shadow to your button, card, or container in your project.

What CSS Box Shadow Does
The CSS box-shadow property adds a shadow to elements, giving them depth and a sense of elevation above the page. It is a common and powerful styling touch in modern web design, used on cards, buttons, containers and more to create visual hierarchy and a polished, layered look. A box-shadow is defined by several values, its offset, blur, spread and colour, which together determine how the shadow falls and appears.
While the box-shadow syntax is not complex, getting the exact shadow you want by writing these values and repeatedly checking the result is fiddly. The offset, blur, spread and colour interact to produce the shadow's look, and achieving a particular effect, subtle or dramatic, soft or sharp, involves trial and error. A visual generator lets you adjust these values and see the shadow update immediately, then gives you the exact CSS.
This visual approach is the main value of a generator. Rather than guessing values, writing CSS, checking the browser, and repeating, you adjust the shadow's properties and watch the preview update live, shaping the effect by eye until it looks right. Then you copy the precise CSS that produces that shadow. This is faster and more intuitive than writing and tweaking box-shadow values by hand, especially for getting a particular look just right.
Box shadow generators are used by web designers and developers styling elements with shadows. Shadows appear throughout modern designs to create depth and hierarchy, so being able to dial in the exact shadow visually and grab the CSS is genuinely handy. It suits quick styling, experimenting with different shadow looks, and getting the precise effect for cards, buttons and containers without the back and forth of writing and testing CSS values manually.
Visual Generating Versus Writing CSS by Hand
| Aspect | Visual generator | Writing CSS by hand |
|---|---|---|
| See the shadow | Live preview as you adjust | Check the browser repeatedly |
| Adjusting values | Visually, by eye | Guess and edit |
| Getting a look | Shape it directly | Trial and error in code |
| Speed | Fast and intuitive | Slower back and forth |
Who Uses a Box Shadow Generator

Pro Tips for Great Shadows
Common Box Shadow Mistakes to Avoid
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For more styling, our Border Radius Generator creates rounded corners, the CSS Gradient Generator makes gradient backgrounds, and colour tools help with your palette.

Frequently Asked Questions
How do I generate a box shadow?
Use the controls to adjust the shadow's offset, blur, spread and colour, watching the live preview update so you can shape the effect by eye until it looks right. Refine the values until the shadow has the depth, softness and look you want, then copy the generated box-shadow CSS, which produces exactly the shadow shown in the preview, and paste it into your element's styles. This lets you dial in the precise shadow visually and grab the code, without writing and repeatedly testing box-shadow values by hand, making styling shadows quick and intuitive.
What does CSS box-shadow do?
The CSS box-shadow property adds a shadow to elements, giving them depth and a sense of elevation above the page. It is a common and powerful styling touch in modern web design, used on cards, buttons, containers and more to create visual hierarchy and a polished, layered look. A box-shadow is defined by several values, its offset, blur, spread and colour, which together determine how the shadow falls and appears around the element. By adjusting these, you can create anything from a subtle, soft shadow to a dramatic, sharp one, shaping the depth and style of your elements.
Why use a generator instead of writing the CSS?
Because shaping shadows visually is faster and more intuitive than writing and tweaking values by hand. While the box-shadow syntax is not complex, getting the exact shadow you want by writing the offset, blur, spread and colour values and repeatedly checking the browser is fiddly, since these values interact to produce the effect. A generator lets you adjust them and watch the preview update live, shaping the shadow by eye, then copy the precise CSS. This avoids the slow back and forth of guessing values, editing, and checking, giving you the exact shadow and its code quickly and easily.
What values make up a box shadow?
A box-shadow is defined by several values that together determine how the shadow falls and appears: the offset, which controls the shadow's horizontal and vertical position relative to the element; the blur, which controls how soft or sharp the shadow's edges are; the spread, which controls how much the shadow expands or contracts in size; and the colour, including its transparency, which sets the shadow's hue and how strong it appears. These values interact to produce the overall effect, so adjusting them shapes the shadow's depth, softness, size and look, which a generator lets you do visually with a live preview.
How do I make a subtle, professional shadow?
Subtle shadows often look more polished and professional than heavy ones, giving depth without being distracting. To achieve this, use gentle offset values so the shadow is not thrown too far, a soft blur so the edges are smooth rather than sharp, and a shadow colour that is not too dark, perhaps with some transparency, so it appears light rather than harsh. The generator's live preview lets you shape such a subtle shadow by eye, adjusting the values until it gives a gentle sense of depth. Favouring subtlety, unless a dramatic effect is specifically intended, generally produces a more refined, professional look.
Can I change the shadow colour?
Yes, the shadow's colour is one of the values that make up a box-shadow, and you can adjust it in the generator. Shadows need not be plain black; you can set the colour, including its transparency, to produce different effects. A semi transparent or subtly coloured shadow can look more natural or stylish than a solid dark one, suiting your design better. The generator lets you adjust the shadow colour and see the effect in the live preview, so you can choose a colour and transparency that give the look you want, whether a soft neutral shadow or something more distinctive.
Where do I put the generated CSS?
You add the copied box-shadow CSS to the styles for the element you want to have a shadow, such as in your stylesheet or the element's style rules, applying it to your card, button, container, or other element. Once the box-shadow is applied, the element will show the shadow exactly as you shaped it in the preview. Make sure you copy the complete generated CSS so it produces the intended shadow, then place it with the element's other styling, alongside any colours, backgrounds, rounded corners or other properties you are using, to give your element the depth and look you designed.
Is the box shadow generator free?
Yes, it is completely free with no account and no usage limit. You can generate as much box-shadow CSS as you like, shaping as many shadow effects as you want, as often as you like, at no cost. It runs entirely in your browser on any device, so there is nothing to download or install, and the CSS is ready to copy the moment your shadow looks right, ready to paste into your project to style buttons, cards, containers and other elements with shadows that give depth and a polished look.