Best Free CSS Box Shadow Generator
Visually build CSS box-shadow with live preview, inset and a second layer — copy the code.
100% free
No signup
No watermark
Files processed in memory, never stored
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How it works
- Move the sliders. Set offset, blur, spread, colour and opacity; toggle inset if you want an inner shadow.
- Watch the preview. The live box updates as you drag; add a second layer in Advanced options for depth.
- Copy the CSS. Hit Copy CSS and paste the box-shadow rule straight into your stylesheet.
About this tool
Design a box-shadow without guessing pixel values. Drag the offset-X, offset-Y, blur and spread sliders, pick a shadow colour and dial in its opacity, and watch a live preview box update in real time — then copy the exact box-shadow CSS. Flip the inset toggle for an inner shadow. The Advanced options stack a second shadow layer, so you can build the soft, multi-layer shadows used on modern cards and buttons. Everything runs in your browser.
What people use it for
- Add a soft drop shadow to cards and modals
- Create an inner (inset) shadow for inputs and wells
- Stack two layers for a realistic, diffuse shadow
- Tune offset and blur to match a design mockup
Frequently asked questions
Offset-X/Y move the shadow horizontally and vertically, blur softens its edge, and spread grows or shrinks the whole shadow before the blur is applied. The live preview shows each change instantly.
Inset draws the shadow inside the element instead of behind it, giving a pressed-in look — useful for inputs and toggles. Flip the inset toggle to switch.
Pick a colour, then use the opacity slider; the tool outputs an rgba() value so the shadow blends naturally.
Yes. Open Advanced options to enable a second shadow layer with its own offset, blur, colour and inset.
No. The generator runs entirely in your browser; the sliders just compute a CSS string locally.
Completely free, no account and no limits — a client-side tool with nothing to meter.
Yes. It runs in your browser, so CSS Box Shadow Generator works on phones and tablets as well as desktop — there is no app to install.
Usually just a few seconds for a typical file — CSS Box Shadow Generator starts working the moment you give it your input.
Casual use is unlimited, under a generous fair-use cap that keeps it fast for everyone.
All modern browsers — Chrome, Safari, Firefox and Edge. CSS Box Shadow Generator needs nothing installed beyond the browser you already use.