CSS Box Shadow Generator: what it does and how to use it

Visually design a CSS box-shadow - adjusting offset, blur, spread, color, and opacity with live preview - and generates the exact CSS syntax to copy, rather than manually guessing values for the notoriously fiddly box-shadow property.

You should not have to open an IDE to format a snippet from Slack, tidy a JSON blob, or check a hash. Paste it here, copy the result, move on.

CSS Box Shadow Generator is a good fit when designing card elevation and modal depth effects.

The useful part

CSS Box Shadow Generator is built around a few practical wins, not a long feature list:

• Creates precise shadows faster than manual trial-and-error coding.
• Live preview makes depth tuning intuitive.
• Helps standardize elevation styles across components.
• Outputs clean copy-ready CSS values.

Do this, in order

1. Select base shadow style. Start with outer or inset shadow based on the component type.
2. Tune offset and blur. Adjust X/Y offset and blur radius until depth looks natural.
3. Set spread and opacity. Control edge softness and intensity for subtle or strong elevation.
4. Copy CSS declaration. Use generated `box-shadow` value directly in your stylesheet.

Who it is for

• Designing card elevation and modal depth effects.
• Building consistent hover states for interactive elements.
• Matching product UI shadows to design specs.
• Creating neumorphic or soft-layered visual styles.

If you want a clean result

• Use lower opacity with slightly higher blur for realistic depth.
• Stack two subtle shadows for cleaner modern UI elevation.
• Match shadow direction to your overall light source assumption.
• Check dark-mode shadow appearance separately from light mode.

Common mix-ups

• Using harsh black shadows that make UI look outdated.
• Applying identical shadows to every component regardless of hierarchy.
• Overusing spread values that create muddy boundaries.
• Skipping dark-theme tuning where shadows can disappear or look dirty.

Private by default

CSS Box Shadow Generator runs in your browser. The file or text you paste stays on your device. There is no account, and nothing is stored on a ToolBox server for this job.

Related tools worth opening next

If this is one step in a longer job, these usually come after it:

• CSS Gradient Generator - Visually build CSS gradients
• CSS Border Radius Generator - Visually build CSS border-radius
• CSS Minifier / Beautifier - Minify or beautify CSS code

Before you ask

Can I create multiple layered shadows on one element?

If the tool supports multiple shadow layers, you can stack several shadows together for more complex depth effects, which is valid CSS box-shadow syntax (comma-separated shadow values).

Does it support inset (inner) shadows?

Yes, typically - toggle between a standard drop shadow and an inset shadow that appears inside the element's border instead of outside it.

Is the generated CSS cross-browser compatible?

box-shadow is well-supported across all modern browsers without needing vendor prefixes, so the generated CSS should work consistently.

Open the CSS Box Shadow Generator when you are ready. It is free, and you do not need an account.