Box Shadow Architect
Create stunning, multi-layered depth for your UI elements with a professional-grade visual shadow simulator.
box-shadow: 10px 10px 20px 0px rgba(0, 0, 0, 0.4);Full Axis Control
Adjust horizontal and vertical offsets with pixel-perfect precision for complex spatial depth.
Soft UI Engine
Instantly visualize how large blur and spread radii create modern, elegant "elevated" interface elements.
Inset Aesthetics
Toggle between outer elevation and internal depth to create carved or pressed UI effects with ease.
Privacy & Trust First
"Shadows in web design aren't just for decoration; they communicate hierarchy (z-index). A small, sharp shadow implies an element is close to the background (like a button), while a large, diffuse shadow implies it is floating high above (like a modal or toast notification). Using multiple layers of shadows is the secret to the 'premium' feel seen on sites like Stripe or Apple."
The Science of CSS Shadows
Create professional CSS box-shadows visually. Axonix's shadow generator lets you fine-tune offsets, blur, spread, and opacity to design realistic depth and elevation for your web projects.
Blazing fast
No server round-trips. No loading bars. Just instant results.
Locked-down privacy
Your data stays in your browser. Period.
Zero friction
Open the page and go. No accounts, no upsells, no clutter.
Built for people who value their time
The 30-second rundown
Drop it in
Paste text, upload a file, or enter your values.
Tweak if needed
Adjust a setting or two — most defaults just work.
Grab the result
Copy, download, or share. Done in seconds.
How This Works
Below is everything you need to get from zero to done. No fluff, just the steps and features that matter.
- 1Use the 'Horizontal' and 'Vertical' sliders to position the shadow relative to the element.
- 2Increase the 'Blur Radius' to soften the shadow and make the element appear higher.
- 3Adjust 'Spread Radius' to expand or shrink the shadow size globally.
- 4Pick a 'Color' and adjust 'Opacity' to create realistic, subtle depth.
- 5Enable 'Inset' to move the shadow inside the element for a 'carved' look.
- 6Copy the generated CSS declaration and paste it into your project's stylesheet.
- Dynamic Rendering Engine: Real-time visual feedback for every shadow parameter.
- RGBA Mapping: Intelligent hex-to-rgba conversion with controllable alpha transparency.
- Symmetry Controls: Easily create centered, glowing shadows or directional light sources.
- Responsive UI: Optimized for a consistent design experience across all device sizes.
- Clean Code Output: Generates semantic CSS with standard unit formatting.
Real Ways People Use This
Material Design Cards
Replicate Google's paper-like elevation by applying subtle shadows that lift content off the page.
Neumorphism (Soft UI)
Combine light and dark shadows to create soft, extruded plastic-like interface elements.
Focus States
Replace the default ugly browser outline with a glowing colored shadow ring for better accessibility and aesthetics.
Inner Depths
Use 'inset' shadows on input fields or wells to make them look recessed into the interface.
Making the Most of It
Good times to reach for this: Reach for The Science of CSS Shadows when you're verifying tokens, checking hashes, or handling anything sensitive. Your data stays on your machine — no risky pasting into random servers.
Typical flow:
- Toss your content into the input — text, file, or whatever you're working with.
- Dial in the settings that match what you actually need.
- Glance over the output to confirm it looks right.
- Grab your result: copy, download, or send it along.
Easy traps to avoid:
- Feeding in sloppy input and assuming the tool will magically sort out every edge case — always eyeball the output first.
- Testing with toy data that looks nothing like your real workload, then getting caught off-guard in production.
- Copy-pasting straight into a live project without a ten-second sanity check. That tiny pause saves hours of cleanup.
Your data stays yours: In most cases, your input never leaves this tab. We don't collect, store, or peek at your data.
Questions That Usually Come Up
Dig Deeper
Want walkthroughs, deep-dives, and edge-case tips? The blog has you covered with practical tutorials written by people who actually use these tools.