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CSS Box Shadow Generator

Tune offset, blur, spread, color and opacity with sliders and copy the CSS box-shadow.

Artifact by Simon Willison

IndexedApache-2.0Design & imagesNo sign-up

Use it

Opens tools.simonwillison.net in a new tab. Nothing to install.

You provide
Slider settings
You get
CSS code
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
AI-built app
Source
Open source
Link check
Answered on Oct 31, 2026

About

CSS Box Shadow Generator is an AI-built single-page app in the design media category (css generator). It opens in your browser, so there is nothing to install. You provide slider settings and get CSS code. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (simonw/tools).

Category: Design & images · css generator

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Details

Auth
No auth
License
Apache-2.0
First seen
Oct 31, 2026
Last checked
Oct 31, 2026
Source
GitHub

More from Simon Willison

Cite this page

CSS Box Shadow Generator: free online. Agent Mart. https://agentmart.dev/artifacts/css-box-shadow-generator (last updated 2026-10-31)