About the CSS Box Shadow Generator
Build realistic elevation instead of guessing values. Adjust horizontal and vertical offset, blur, spread, colour and opacity, stack multiple layers for depth, then copy the exact CSS rule.
How to use it
- 1Set the offsets and blurDrag the sliders or type exact pixel values; the preview card updates immediately.
- 2Pick colour and opacityUse the colour picker and alpha slider to match your palette, including dark-mode shadows.
- 3Copy the CSSAdd more layers if you need a softer, more natural shadow, then copy the box-shadow declaration.
Why use this css box shadow generator?
- Nothing leaves your device. The work happens in your browser tab. There is no upload endpoint in this app, so your files and text cannot be stored, logged or seen by us.
- No upload wait. You skip the round trip to a server entirely. Results are limited by your own CPU, not by network speed or queue size.
- Free, no account, no quotas. No sign-up wall, no watermark, no daily limit. Optional accounts only exist to save favourites and presets across devices.
Frequently asked questions
Is my design safe to use here?
Yes. This tool runs entirely in your browser using JavaScript. Nothing you paste or open is sent to a server, and the page keeps no copy after you close it.
Do I need to create an account?
No. Every tool is fully usable without signing in. An account only adds saved favourites and reusable presets.
Does it work on a phone?
Yes. The interface is mobile-first with large touch targets and a stacked layout, so it works on phones and tablets as well as desktops.
How do I make a natural-looking shadow?
Use a small negative spread, a large blur and low opacity, offset downward more than sideways. Stacking two or three low-opacity layers usually looks better than one heavy shadow.
Why does my shadow look clipped?
The parent element probably has overflow hidden, or the shadow is wider than the surrounding padding. Add margin or padding around the element so the blur has room to render.